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ANATOMY 5 > Chapter 9: The Skull > Flashcards

Chapter 9: The Skull Flashcards

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1
Q

It houses the organs of special senses for hearing, smelling & sight. It also encloses the brain. Consists of the neurocranium and facial bones.

A

Skull

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2
Q

_________ - is a box-like structure in the superior part of the skull.

A

calvaria (cranial vault)

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3
Q

What are the 8 cranial bones?

A

a. Frontal
b. Occipital
c. Parietal (2)
d. Sphenoid
e. Temporal (2)
f. Ethmoid

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4
Q

The following are the Facial bones. Which of the following is not included?

a. Nasal (2)
b. Palatine (2)
c. Maxillae (2)
d. Inferior nasal concha (2)
e. Zygomatic (2)
f. Ethmoid
g. Mandible
h. Lacrimal (2)

A

not included: f

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5
Q

How many are the Facial bones?

A

14 Facial bones

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6
Q

This part of the skull is comprised of the anterior part of the calvaria and skeleton of face.

A

Anterior aspect of skull

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7
Q

What are the divisions that features the skeleton of face?

A
  1. frontal and zygomatic bones
  2. orbits
  3. nasal region
  4. maxillae and mandible
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8
Q

This bone forms the skeleton of the forehead. It articulates with the lacrimal, ethmoid, sphenoid, nasal and zygomatic bones.

A

Frontal bone (skull bone)

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9
Q

What are the landmarks on the frontal bone?

A
  1. Glabella
  2. Supra-orbital margin
  3. Superciliary arch
  4. Supra-orbital (notch) foramen
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10
Q

___________ - Located between the superciliary arches, the glabella is a smooth slightly depressed area.

A

Glabella

(between eyebrows)

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11
Q

____________ - Frontal bone thickens then extends posterior, to form roofs of the orbits.

A

Supra-orbital margin

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12
Q

__________ - Is superior and parallel to the margin and overlies the frontal sinus.

A

Superciliary arch

(where eyebrows are positioned)

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13
Q

___________ - Passage of supraorbital nerve and vessels.

A

Supra-orbital (notch) foramen

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14
Q

These bones form the prominence of the cheeks and lie on the inferolateral sides of the orbits and rest on the maxilla. The anteriolateral rims, walls, these bones form floor and much of the infra-orbital margin of the orbits.

A

Zygomatic Bones

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15
Q

What are the articulations of Zygomatic Bones?

A
  1. frontal bone
  2. maxilla bone
  3. sphenoid bone
  4. temporal bone
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16
Q

The ____________ of the zygomatic bone unites with the ___________ of the temporal bone to form the zygomatic arch.

A

temporal process

zygomatic process

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17
Q

These bones are easy to palpate and form the bridge of the nose. These bones articulate with frontal, maxillae and ethmoid bones.

A

Nasal Bones

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18
Q

What are the landmarks on the nasal bones?

A
  1. Middle nasal conchae
  2. Bony nasal septum
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19
Q

__________ - can be observed through the nasal cavity, dividing the nasal cavity into right and left parts.

A

Bony nasal septum

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20
Q

____________ - is formed by the vomer bone inferiorly and the perpendicular plate of the ethmoid bone superiorly.

A

bony nasal septum

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21
Q

_____________ - curved bony plates located on the lateral wall of the nasal cavity .

A

Middle nasal conchae

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22
Q

The two maxillae are united by the _____________ to form the maxilla or the upper jaw.

A

intermaxillary suture

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23
Q

What are the landmarks on the maxillae?

A
  1. maxillary sinus
  2. alveolar processes
  3. anterior nasal aperture
  4. Infra-orbital foramen
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24
Q

The maxillae contain _____________ , which include sockets, and is the supporting bone for the maxillary teeth.

A

alveolar processes

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25
The maxillae surrounds most of the anterior nasal aperture and forms the \_\_\_\_\_\_\_\_\_\_\_\_ medially.
infra-orbital margins
26
\_\_\_\_\_\_\_\_\_\_\_ - located inferior to each orbit for the infraorbital nerve and vessels.
Infra-orbital foramen
27
Also known as the lower jaw and is the largest and strongest bone of the face. This bone is U-shaped with alveolar processes that house the mandibular teeth.
Mandible
28
The mandible consists of the horizontal part called _____ and a vertical part called _____ .
body rami
29
The superior part of each ramus has two processes. The posterior is called \_\_\_\_\_\_\_ and a sharp anterior process called \_\_\_\_\_\_\_\_\_\_. In between these two structures is a dip called ___________ .
condylar process coronoid process mandibular notch
30
On the anterior part of the body there is a ____________ . Lateral to this protuberance there are the _________ which transmit the mandibular division of the Trigeminal nerve.
mental protuberance mental foramen
31
\_\_\_\_\_\_\_\_\_\_\_ - forms the posterior third of hard palate. These horizontal plates separate the nasal and oral cavities.
Palatine Bones
32
What is the main cranial bone on the lateral aspect of the skull?
temporal bone
33
\_\_\_\_\_\_\_\_\_\_ - is a clinical landmark where 4 bones articulate: frontal, parietal, temporal and sphenoid (H shape). It is located in the temporal fossa.
Pterion
34
Form most of the lateral sides of the skull and part of base.
Temporal Bones
35
\_\_\_\_\_\_\_\_\_\_ - unites with temporal process of zygomatic bone to form zygomatic arch (cheek bone) .
Zygomatic process
36
\_\_\_\_\_\_\_\_\_\_ - projects anterior/inferiorly of temporal bones. It is part of attachment for sternocleidomastoid muscle.
mastoid process
37
Anteromedial to the mastoid process is the slender ____________ .
styloid process
38
\_\_\_\_\_\_\_\_\_\_\_ - is an air chamber in the temporal bone containing the small ear bones - The malleus, the incus and the stapes.
tympanic cavity
39
This part of the skull is formed by the posterior parts of the parietal bones, the occipital bone and the mastoid processes of the temporal bone.
Posterior aspect of the skull
40
This bone forms most of the posterior part of the skull and most of the base.
Occipital Bone
41
\_\_\_\_\_\_\_\_\_\_\_ - large opening on the inferior aspect of the occipital bone, where the spinal cord
Foramen magnum
42
\_\_\_\_\_\_\_\_\_\_\_ - one on either side of the foramen magnum. They articulate with C1
Occipital condyles
43
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - prominent bump on posterior aspect of skull to foramen magnum.
External occipital protuberance (inion)
44
\_\_\_\_\_\_\_\_\_\_\_\_ - run laterally from the External occipital protuberance to the mastoid processes of the temporal bones.
Superior nuchal lines
45
\_\_\_\_\_\_\_\_\_\_\_ - run parallel to the superior nuchal lines but on the underside of the skull.
Inferior nuchal lines
46
\_\_\_\_\_\_\_\_\_\_ - found in the center of the occiput that indicates the junction of the sagittal and lambdoid sutures.
Lambda
47
This part of the skull is composed of the frontal bone anteriorly, the right and left parietal bones laterally and the occiput posteriorly.
Superior part of the skull
48
What are the two curved lines that crossed over to middle and lateral surfaces of the parietals?
superior and inferior temporal lines
49
\_\_\_\_\_\_\_\_ - suture separates the frontal and parietal bones.
coronal
50
\_\_\_\_\_\_\_\_ - suture separates the parietal bones.
sagittal
51
\_\_\_\_\_\_\_\_\_\_ - suture separates the occipital bone from the parietal and temporal bones.
lambdoid
52
\_\_\_\_\_\_\_\_ - is the landmark formed by the intersection of the sagittal and coronal sutures.
bregma
53
What is the most superior part of the skull?
The vertex
54
\_\_\_\_\_\_\_\_ - is irregular because of many foramen processes & articulations. It has the temporal bone with mastoid and styloid processes.
cranial base
55
\_\_\_\_\_\_\_\_\_\_\_\_\_ - is the most obvious and is bordered anterolaterally by occipital condyles which articulate with the atlas (C1).
foramen magnum
56
This bone is located anterior to temporal bones, often described as looking like a bat. It has three main parts - the body, the greater and lesser wings.
Sphenoid Bone
57
The superior part is shaped like a Turkish saddle (sella turcica). It forms the hypophyseal fossa, which contains the pituitary gland.
Sphenoid Bone
58
This bone is located in the anterior part of cranial floor between the orbits. It is anterior to the sphenoid and posterior to the nasal bones. It is also a major supporter of the nasal cavity.
Ethmoid Bone
59
Ethmoid bone contains the ___________ . It also contains the __________ which the olfactory nerves pass through.
ethmoid sinuses cribriform plates
60
\_\_\_\_\_\_\_\_\_\_ - is known as a sesamoid bone and is found in the anterior neck region. It is a unique U-shaped bone that is suspended from the styloid processes of the temporal bones by ligaments and muscles. It contains a horizontal body and paired projections, called the lesser and greater horns.
Hyoid bone

ANATOMY 5 (12 decks)

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