Anatomy Midterm (Slides 1-158) Flashcards

(222 cards)

1
Q

There are a total of __ vertebrae but only __ of them are moveable

A

There are a total of 33 vertebrae but only 24 of them are moveable

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2
Q
Fill in the blanks:
cervical spine (_ vertebrae)
thoracic spine (\_\_ vertebrae)
lumbar spine (_ vertebrae)
sacrum (_ fused vertebrae)
coccyx (_ fused vertebrae)
A
cervical spine (7 vertebrae)
thoracic spine (12 vertebrae)
lumbar spine (5 vertebrae)
sacrum (5 fused vertebrae)
coccyx (4 fused vertebrae)
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3
Q

T/F: Each vertebra is numbered from top to bottom.

A

True

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4
Q

What is the key function of intervertebral discs?

A

Weight-bearing

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5
Q

T/F: There is no intervertebral disc between C1 and C2

A

True

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6
Q

Each Intervertebral disc has a fibrous outer layer called the _______ ______.

A

Annulus fibrosis

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7
Q

The annulus of an intervertebral disc surrounds the inner substance which is called the ________ _______.

A

Nucleus pulposus

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8
Q

Are the intervertebral discs innervated? Are they vascularized?

A

They are aneural, except in the peripheral 1/3rd.

They are avascular.

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9
Q
Are the following spinal segments lordotic or kyphotic? 
cervical 
thoracic 
lumbar 
sacral
A

cervical (lordotic)
thoracic (kyphotic)
lumbar (lordotic)
sacral (kyphotic)

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10
Q

The ________ and _______ curves are termed primary (bc they develop during the fetal period)

A

The thoracic and sacral curves.

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11
Q

The ________ and _______ are termed secondary (bc they develop when the infant starts lifting their head and walking).

A

The cervical and lumbar curves.

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12
Q

Large, heavy anterior part of the vertebra.

A

Vertebral body

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13
Q

Vertebral bodies get _______ as you progress inferiorly.

A

Larger

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14
Q

The part of the vertebra that encloses the vertebral foramen.

A

Vertebral arch

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15
Q

The arch is formed anteriorly by 2 ______s.

A

Pedicles

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16
Q

The pedicles project __________ from both sides of the __________ part of the vertebral body

A

They project posteriorly from both sides of the superior part of the vertebral body.

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17
Q

As the pedicles project posteriorly, they meet 2 ________.

A

Laminae

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18
Q

The laminae meet posteriorly to form a _______ ________.

A

Spinous process

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19
Q

A total of _ articular processes arise from the arch of each vertebra.

A

4

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20
Q

What is the a.k.a. for zygapophysial joints

A

Articular joints

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21
Q

This is the area between the superior and inferior articular processes (the most common fracture site)

A

Pars articularis

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22
Q

The vertebral notches of 2 adjacent vertebrae form an almost complete ring called the _________ _______.

A

Intervertebral foramen

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23
Q

Upper cervical spine: C_-_

Lower cervical spine: C_-_

A

Upper cervical spine: C 1-2

Lower cervical spine: C 3-7

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24
Q

The C1 vertebra has an articular facet for the ____ of C2.

A

Dens

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25
The TVPs of C1 are projections from the _______ ______.
Lateral masses
26
The __________ _________ of C1 allows passage of the vertebral artery.
Transverse foramen allows passage of the vertebral artery.
27
T/F: C1 has no vertebral body but it has bifid SPs.
False, it has no vertebral body and no SPs.
28
What is the a.k.a. for the the odontoid process?
The Dens
29
C_-C_ SPs are bifid
C2-C6 SPs
30
Which vertebra is aka Vertebra Prominens?
C7
31
Upward bony projections on the posterolateral rims of the C-spine vertebral bodies.
Uncinate processes
32
What is an aka for the uncovertebral joints of the C-Spine?
Joints of Lushka
33
The uncovertebral joints provide stability in the C-Spine preventing excessive ________ translation
Lateral
34
On C6 the anterior tubercle is called the _______ tubercle.
Carotid tubercle
35
The largest vertebra is ___.
L5
36
A horizontal line drawn between the tops of the iliac crests landmarks ___ SP
L4
37
The top part of the sacrum, the WIDEST part, is called the _____.
Base
38
The pointed inferior edge of the sacrum.
The Apex
39
The part of the sacrum that articulates with L5.
Lumbosacral articular surface
40
The ‘wings’ of the sacrum.
Ala (pl. alae)
41
The pelvic surface of the sacrum is _________, the dorsal surface is ________.
Pelvic surface is concave, dorsal surface is convex
42
What type of joint is the lumbosacral joint?
Cartilaginous (with IVD)
43
What motion do the iliolumbar ligaments limit?
Lateral flexion.
44
The apex of the sacrum articulates with the base of the coccyx to form which joint?
The sacrococcygeal joint.
45
What type of joint are the Sacroiliac (SI) joints?
Synovial
46
These ligaments lie just anterior (deep) to the posterior SI ligaments.
Interosseous Sacroiliac ligaments
47
the sacrotuberous and sacrospinous ligaments are accessory ligaments to the __ joints
SI joints
48
The SPs of thoracic vertebra point ________ and _________.
Inferior and posterior
49
What is an aka for the sternal notch? On which bone is it located?
The jugular notch on the manubrium
50
On either side of the jugular notch is an articular facet where the manubrium articulates with the _______.
Clavicle
51
AKA for the body of the sternum.
The gladiolus
52
AKA for the manubriosternal joint.
Angle of Louis (or sternal angle)
53
The manubriosternal joint is a landmark for which rib?
Rib 2
54
Along the side of the gladiolus are costal notches for the articulation of ________ __________.
Costal cartilage
55
The thin process inferior to the body of the sternum.
Xiphoid process
56
Ribs __-__ are called ‘true’ ribs because they have a direct connection with the sternum via their own costal cartilage
Ribs 1-7
57
Ribs __-__ have an indirect connection with sternum (via the 7th ribs costal cartilage).
Ribs 8-10
58
Ribs __-__ are called ‘typical’ ribs because have the following characteristics: a head, neck, tubercle and shaft.
Ribs 2-10
59
Typical ribs have a costal groove, through which the ______ _______ passes.
Costal nerve
60
The _____ of a typical rib has 2 facets (superior and inferior) which articulate with 2 vertebral bodies, and a ________, which articulates with the TVP of the same number vertebra.
The head connects wit the vertebral bodies. | The tubercle connects with the TVP.
61
The _________ costal demi facet articulates with the head of the rib of the same number. (ie. the ________ costal demi facet on T4 articulates with rib 4)
Superior
62
The _________ costal facet articulates with the tubercle of the rib of the same number.
Transverse
63
Ribs 1, 11, 12 are 'atypical' because they articulate with only 1 ________ _____.
Vertebral body
64
T/F: 'Atypical' ribs articulate with the numerically corresponding vertebra.
True
65
Which muscles attach to special tubercles on rib 1?
The scalenes
66
Rib 1 contains grooves for the _________ artery and vein
Subclavian
67
Which ribs do not connect with a TVP?
Ribs 11 and 12 (Rib 1 still does)
68
The facet orientation of thoracic vertebra tends to be in the ________ plane, where as the facet orientation of lumbar vertebra tends to be in the ________ plane.
Thoracic: frontal/coronal Lumbar: sagital
69
Superior angle landmarks rib __ Root of the spine of the scapula landmarks rib __ Inferior angle landmarks rib __ or __
superior angle landmarks rib 2 root of the spine of the scapula landmarks rib 3 inferior angle landmarks rib 7 or 8
70
Intervertebral joints are designed for strength and weight bearing. They are classified as _________ joints.
Cartilaginous
71
The superior articular facets on the lateral masses of C1 articulate with the __________ ________ of the skull.
Occipital condyles
72
What type of joint is the Atlanto-Occipital joint?
Synovial condyloid
73
What ligament supports the atlanto-occipital joint?
Atlanto-occipital membrane
74
What type of joint is the Atlanto-Axial joint? What movement happens there?
Synovial pivot. Rotation only.
75
Which ligament holds the dens of C2 against the anterior arch of C1?
Transverse ligament of the atlas
76
Bands of this ligament travel from transverse ligament superiorly to the occipital bone and inferiorly to the body of C2.
Cruciate/Cruciform ligament
77
Ligament that goes from the dens to lateral margins of foramen magnum.
Alar ligaments
78
Ligament that goes from the dens to anterior margin of foramen magnum.
Apical ligament
79
Ligament that travels/is anchored to the posterior aspect of the vertebral bodies and IVDs from sacrum to C2
Posterior Longitudinal ligament (PLL)
80
What two things do the Posterior Longitudinal Ligament do?
Checks hyperflexion of the spine. | Prevents posterior protrusion of the IVD.
81
the most superior part of the PLL is the _________ _________, which attaches onto the occiput.
Tectorial membrane
82
Ligament that travels/is anchored to the anterior aspect of the vertebral bodies and IVDs from sacrum to occiput.
Anterior Longitudinal ligament
83
What two things do the Anterior Longitudinal Ligament do?
Checks hyperextension of the spine. | Stabilizes intervertebral joints.
84
What types of joints are the facet joints?
Synovial plane
85
What movements are available at the facet joints?
Flexion Extension Lateral flexion (L,R) Rotation (L,R)
86
Factors Affecting _______ of facet joints: • size and shape of IVDs • angle of the facet joints • laxity of ligaments/joint capsules
Range of Motion
87
Which ligament connects from lamina to lamina of sacrum up to C1, helps preserve normal curves and helps return spine to normal position after flexion?
Ligamentum Flava
88
Which ligaments between the SPs limit flexion by preventing excessive forward flexion?
Interspinous ligaments
89
How far inferior do supraspinous ligaments go?
From sacrum to C7
90
Which ligament runs from C7 to back of the skull and is responsible for thickening of the interspinous/supraspinous ligaments?
Ligamentum Nuchae aka Nuchal ligament
91
The only ‘bony’ articulation between the upper limb and the axial skeleton.
The sternoclavicular joint
92
Where does the clavicle connect with the sternum? What type of joint is it?
Clavicle articulates with manubrium and costal cartilage of 1st rib. It's a synovial saddle joint.
93
What acts as a shock absorber for forces along clavicle?
The fibrocatrilagenous articular disc at the sternoclavicular joint
94
What movements are available at the sternoclavicular joint?
* elevation/depression * protraction/retraction * rotation
95
Which ligament connects the first rib to sternal end of clavicle?
Costoclavicular ligament
96
Which ligament connects the 2 SC joints across the manubrium?
Interclavicular ligament
97
What type of joint is the manubriosternal joint? What movement is available there?
Cartilaginous | Some movement during respiration
98
In which joint does the body of the sternum articulate with the xiphoid process? What type of joint is it?
Xiphisternal joint | Cartilaginous
99
What types of joints are the Chondrosternal joints?
rib 1 and manubrium: cartilaginous | ribs 2-7: synovial
100
In which joints do the lateral end of each costal cartilage fit into a cup-shaped anterior end of its associated rib? What types of joints are they?
Costochondral joints | Cartilaginous
101
Which ligaments are responsible for supporting the costochondral joints?
None— they are supported/bound together by periosteum
102
In which type of joints do the adjacent borders of the costal cartilages articulate? What classification of joints are they?
Interchondral | Synovial
103
What types of joints are the costovertebral joints?
Synovial plane
104
What ligament connects the head of the rib to the 2 vertebral bodies and disc in between?
Radiate ligament
105
In what type of joint does the facet on the tubercle of the rib articulate with the costal facet on the associated TVP? What classification of joint are they?
Costotransverse joint | Synovial plane
106
The superficial layer of extrinsic back muscles connect the ______ _____ to the _____.
The upper limb to the trunk
107
The intermediate layer of intrinsic back muscles are two accessory muscles of ____________.
Respiration
108
The deep layer of intrinsic back muscles maintain __________ and move the spine/head
Posture
109
The intermediate layer (of the deep muscles) of the back consists of 3 columns of muscles collectively called the ________ ______.
Erector spinae
110
The intermediate layer (of the deep muscles) of the back, from ______ to _______, are: (a) spinalis (b) longissimus (c) iliocostalis
Medial to lateral
111
The transversospinalis (superomedial) muscles from _________ to _______, are: 1. semispinalis (capitis, cervicis, thoracis) 2. multifidus 3. rotatores
Superficial to deep
112
Where are the transversospinalis muscles found?
In the groove between the spinous and transverse processes (the laminar groove)
113
These last two deep (deep) back muscles have a _______ fibredirection: 1. interspinales 2. intertransversarii
Vertical
114
Serratus posterior superior is _______ to rhomboids (same fibredirection) and __________ to the erector spinae
Deep to rhomboids | Superficial to erector spinae
115
What action does serratus posterior superior do?
Elevates ribs 2-5, during inspiration (bucket-handle movement)
116
Serratus posterior inferior is deep to ____________ and ________ ______ ______.
Deep to latissimus/thoracolumbar fascia
117
What action does serratus posterior inferior do?
Draws ribs down and back during forced expiration
118
What is the result of unilateral contraction of splenius capiti vs. bilateral contraction?
Unilateral contraction: ipsilateral rotation | Bilateral contraction: extension of the neck
119
Which muscle attaches from the SPs of T3 – T5 to the C1 – C4 TVPs and does the same action as splenius capitis?
Splenius cervicis
120
Name the group of muscles arise inferiorly from the thoracolumbar fascia and spread out in a superolateral direction, and name their shared actions.
Intermediate layer (of the deep back muscles) unilateral: lateral flexion of the vertebral column bilateral: extension of the vertebral column
121
``` Which intermediate (deep) back muscle is very thin and the shortest column? ```
Spinalis
122
Which intermediate (deep) back muscle is the longest column, and is most visible and palpable?
Longissimus
123
Which intermediate (deep) back muscle attaches to the rib muscles?
Iliocostalis
124
Which muscle is the largest mass in the posterior neck?
Semispinalis
125
What is the only muscle whose fibres run across the posterior sacrum?
Multifidis
126
Which muscle is the deepest in the laminar groove?
Rotatores
127
Which paired muscles on either side of cervical and lumbar SPs perform extension?
Interspinales
128
Which muscle attaches to the TVPs of adjacent vertebrae of cervical and lumbar spine and performs lateral flexion?
Intertransversarii
129
Which 4 small muscles deep to semispinalis capitis lay directly over the Atlanto-axial joint
Suboccipitals
130
Which of the suboccipitals attaches to the dura mater, which may result in headaches by disruption of normal cerebrospinal fluid flow (CSF) and therefore the function of the vertebral artery and the suboccipital nerve?
Rectus capitis posterior minor
131
Which of the suboccipitals is a key muscle for rotation of C1?
Obliquus capitis inferior
132
Which of the suboccipitals does lateral flexion of the head on the neck?
Obliquus capitis superior
133
What is contained within the suboccipital triangle?
The vertebral artery and the suboccipital nerve
134
Name these boundaries of the suboccipital triangle: inferolateral border: ______ _______ _______ superolateral border: ______ _______ ______ superomedial border: _____ ______ ______ _______ floor: posterior _______-_________ membrane roof: __________
inferolateral border: obliquus capitis inferior superolateral border: obliquus capitis superior superomedial border: rectus capitis posterior major floor: posterior atlanto-occipital membrane roof: semispinalis
135
The ________ ______: the head wants to follow where the eyes look.
The looking reflex
136
A patient rolling their eyes ________ generates a small contraction in the suboccipital muscles and rolling them __________ will help them relax.
Rolling the eyes upward generates a small contraction in the suboccipital muscles and rolling them downward will help them relax.
137
Which of the anterolateral neck muscle does flexion of the head AND neck?
Longus capitits
138
Which of the scalenes attaches to rib 1, posterior to the subclavian artery?
Middle scalene
139
Which of the scalenes does flexion of the neck when contracting bilaterally?
Anterior scalene
140
Which of the scalenes elevates rib 2 during forced inhalation?
Posterior scalene
141
Which anterolateral neck muscle can do flexion of the neck if the head/neck is in neutral or flexed, and extension of the head (if the head is already extended)?
Sternocleidomastoid
142
Define the borders of the anterior cervical triangle: base: ________ lateral border: ______ medial border: _________ _______ __ _____
base: mandible lateral border: SCM medial border: midsagittal plane of the neck
143
Define the borders of the posterior cervical triangle: base: ______ anterior border: _______ posterior border: _________
base: clavicle anterior border: SCM posterior border: trapezius
144
Just inferior to where the pharynx splits into the trachea and the esophagus, organ for voice production.
Larynx
145
Adam’s apple – formed by the _______ _______.
Thyroid cartilage
146
thyroid gland: __________ to the trachea, _________ to the thyroid cartilage
Anterior to the trachea, inferior to the thyroid cartilage
147
This bone is part of the anterior neck superior to the thyroid cartilage (part of the larynx).
Hyoid bone
148
What movement do the suprahyoids perform when the hyoid is fixed?
Assist in depressing (lowering) the mandible
149
Which of the infrahyoids attaches to the superior border of the scapula near the suprascapular notch?
Omohyoid (inferior belly)
150
The abdomen is the area between the _________ and the ______.
The diaphragm and the pelvis
151
The dividing lines for the 4 quadrants of the abdomen are based on the mid-sagittal plane and the __________ plane (the transverse plane passing through the umbilicus or belly button).
transumbilical
152
The right and left sides of rectus abdominus are separated by the ______ ____.
Linea alba
153
Which abdominal muscle is most superficial?
External obliques
154
The fibre direction of external obliques is _________ and _____________.
Anteriorly and inferomedially
155
The fibre direction of internal obliques is _________ and _____________.
Anteriorly and superomedially
156
External obliques contract unilaterally to perform _______ rotation of the column, whereas internal obliques contract unilaterally to perform _________ rotation
External obliques: contralateral rotation | Internal obliques: ipsilateral rotation
157
Light stroking on the medial thigh can initiate the __________ reflex (raising of the testes)
Cremaster
158
This abdominal muscle has a medial-lateral fibredirection and is deep to internal obliques.
Transverse abdominis
159
the aponeurotic attachments of the external oblique, internal oblique and transversus abdominis form a sheath of connective tissue which encases the rectus abdominis muscle called the _________ _________.
The rectus sheath
160
The linea alba runs vertically from the ________ ________ to the __________ ______.
From the xiphoid process to the symphysis pubis
161
The lateral border of the rectus abdominis and its sheath.
The linea semilunaris
162
Quadratus Lumborum can contract bilaterally to fix the 12th rib during _______ _________.
Forced expiration
163
The innermost intercostals are separated from the internal intercostals by the ___________ ______.
Neurovascular bundle
164
What action do the external intercostals perform?
Quiet and forced inspiration (through elevation of the ribs)
165
What action do the internal/innermost intercostals perform?
Forced expiration
166
This muscle has 12 pairs, one for each rib it attaches to, and elevates the ribs for respiration.
Levator costarum
167
This muscle anchors and depresses and draws the clavicle medially.
Subclavius
168
A dome-shaped muscle that divides the thoracic cavity and abdominal cavity.
The diaphragm
169
The top of the dome of the diaphragm sits at approximately the __th intercostal space (during expiration) and the __th intercostal space (during inspiration).
4th intercostal space (during expiration) | 6th intercostal space (during inspiration)
170
The muscular fibres of the diaphragm converge radially into a strong aponeurotic tendon called the ______ ________. It has a C-shaped appearance with a central, left and right ‘leaflet’.
Central tendon
171
The diaphragm is enervated by the ________ _____ (C__-__)
``` Phrenic nerve (C3-5) "C3, 4, and 5 keep the diaphragm alive!" ```
172
As the diaphragm it flattens, it increases the vertical dimension of the thoracic cavity (increased thoracic _________)
Volume
173
Inspiration is assisted by the contraction of the _________.
Intercostals
174
During inspiration, the ribs are raised and moved laterally which increases the _________ dimension of the thorax (increased thoracic volume).
Transverse
175
As the ribs are raised, the anterior parts of the ribs and the sternum move anteriorly which increases the anterior-posterior dimension of the thorax (increased thoracic volume) – this is called the ____-______ __________.
Pump-handle movement
176
Increases in the vertical, transverse, and AP dimensions create a __________ pressure in the lungs which results in air being drawn in
Negative
177
Inspiration __________ the vertical dimension of the abdomen and __________ the pressure, which is important for normal blood and lymphatic circulation.
Decreases the vertical dimension and increases the pressure
178
During _______ ________, the diaphragm remains relatively relaxed and accessory muscles of respiration lift the chest up and out. This is an inefficient means of respiration.
Apical Breathing
179
The region below the pelvic cavity.
The Perineum
180
What are the actions of the pelvic diaphragm?
Supports the pelvic viscera | Helps maintain control of bodily functions
181
The part of the skull that contains the brain (often used interchangeably with skull – consists of the frontal, occipital, sphenoid, ethmoid, temporal and parietal bones.
The cranium
182
The dome-like superior portion of the cranium.
Calvaria
183
The line of union in an immoveable articulation.
Suture
184
U-shaped bone that forms the skeleton of the lower jaw and the inferior part of the face.
Mandible
185
Roughened area on the inner aspect of the angle of the | mandible.
Pterygoid tuberosity
186
The ridge one the frontal bone where your eyebrows are.
Superciliary arch
187
The _______ bone forms the roof of the eye sockets
Frontal
188
The temporal bone houses structures related to ________ and __________.
Hearing and balance
189
Within the temporal bone is the ________ _______ which houses the 3 ossicles (bones of the middle ear).
Tympanic cavity
190
The 3 ossicles (bones of the middle ear) are called the ______, _____, and _______.
malleus, incus, stapes
191
Wedge-shaped bone anterior to the temporal bones.
Sphenoid
192
_____ _______ (Turkish saddle) - houses the pituitary gland.
Sella Turcica
193
The skeleton of the face between the mouth and the eyes.
The Maxillae
194
Exit of the infraorbital nerve. Which bone is it located?
Infraorbital foramen of the Maxillae
195
Anatomical term for cheek bones.
The Zygomatic bones
196
Separates the nasal cavity from the brain. Located at the roof of the nose between the orbits.
The Ethmoid bone
197
Arched fold of dura mater which separates the right and left hemispheres of the brain and descends in the longitudinal fissure.
Falx cerebri
198
A ridge of bone projecting superiorly from the Ethmoid - attachment for the falx cerebri
Crista galli
199
Part of the Ethmoid which forms the posterior and superior part of the nasal septum.
Perpendicular plate
200
Meeting point between the coronal and sagittal sutures.
Bregma
201
Joint between temporal and parietal bones.
Squamous suture
202
Meeting point of the lambdoid and sagittal sutures
Lambda
203
Connection between the sphenoid, temporal, frontal and parietal bones.
Pterion
204
Aka eye socket— cone-shaped cavity made of many bones.
The Orbit
205
``` Define the borders of the orbit: posterior wall - ________ floor - ________ roof - ________ lateral wall - ________ medial wall - ________ ```
``` posterior wall - sphenoid floor - maxillae roof - frontal lateral wall - zygomatic medial wall - ethmoid ```
206
Which of the sinuses are the largest?
Maxillary
207
the air travelling through the sinuses is either warmed or cooled to within 1 degree of _____ ___________.
Body temperature
208
There are short, thick hairs called __________ which help to move particulate matter.
Vibrassae
209
In the TMJ, the head/condyle of the mandible articulates with the _________ ______ and articular tubercle of the temporal bone
Mandibular fossa
210
What type of joint is the TMJ?
Synovial, modified hinge
211
Attached to the TMJ articular disc posteriorly is the ________ ____, which helps maintain the proper positioning of the disc.
Retrodiscal pad
212
The TMJ capsule thickens laterally to form the ________ ______________ ligament
Lateral temporomandibular ligament
213
Which muscle does elevation of the mandible | and retraction of the mandible (more horizontal/posterior fibres)?
Temporalis
214
Which muscle does both retraction and protraction of the mandible?
Masseter
215
Which muscle performs translational (anterior/posterior) control of the articular disc of the mandible?
Lateral pterygoid
216
Beginning to midrange of mandibular depression is primarily _______ ________ rotation of the head of the mandible in the mandibular fossa.
Anterior sagittal
217
Midrange to end range of mandibular depression is primarily anterior translation of the head of the mandible from the fossa onto the ________ ________.
Articular tubercle
218
During depression, as the translation of the mandible occurs, the articular disc is pulled anteriorly by the superior head of the ________ _________ to maintain joint surface congruency.
Lateral pterygoid
219
As the mouth closes, the disc is pulled back into position by elastic fibres that attach to the back of the disc – the movement is controlled (eccentrically) by the __________ head of the lateral pterygoid
Superior head
220
What is the close-packed position of the TMJ?
Maximal occlusion
221
What is the resting position of the TMJ?
Teeth 2-5mm apart with the tip of the tongue resting behind the front teeth on the roof of the mouth
222
``` Name all the examples for muscles of facial expression: Occipitofrontalis = ________ Orbicularis oculi = ________ supercilii = ________ Levator labii superioris = ________ Levator labii superioris aleque nasi = ________ Zygomaticus minor = ________ Zygomaticus major = ________ Orbicularis oris = ________ Mentalis = ________ Depressor labii inferioris = ________ Depressor anguli oris = ________ Platysma = ________ ```
Occipitofrontalis = Surprise Orbicularis oculi = Squinting & winking Corrugator supercilii = Frowning Levator labii superioris = Snarling Levator labii superioris aleque nasi = Stank face Zygomaticus minor = Elvis Zygomaticus major = Smiling Orbicularis oris = Kissing & whistling Mentalis = Pouting Depressor labii inferioris = Yikes Depressor anguli oris = Sad Platysma = Creature from the black lagoon