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Anatomy Dissection > Ch 10 Bones of the Skull > Flashcards

Ch 10 Bones of the Skull Flashcards

(107 cards)

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1
Q

4 functions of the skull

A

-protective cavity for the brain
-cavities to house sensory organs
-openings for air and food passage
-mastication

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2
Q

Number of cranial and facial bones

A

22

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3
Q

Most bones of the skull are joined at immovable joints called _, the exception is the _which presents a _ (movable) joint

A

sutures, mandible (chin bone), synovial

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4
Q

The superior portion of the cranium is also referred to as the

A

Calvaria

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5
Q

Cranium (8 bones)

A

-occipital
-parietal (2)
-frontal
-temporal (2)
-sphenoid
-ethmoid

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6
Q

The occipital bone is a _ bone at the posterior _ aspect of the cranium

A

flat, posterior inferior

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7
Q

At birth the _ portion of the skull is “born first”

A

occipital

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8
Q

The foramen magnum is a large foramen at the _ of the skull near the _ aspect of the _ bone through which the spinal cord enters the cranium.

A

base, ANTERIOR, occipital

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9
Q

Large prominent eminence on the posterior midline of the occipital bone = (give alt names)

A

External Occipital Protuberance AKA occiput

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10
Q

Upper curved ridge extending laterally from the external occiput

A

superior nuchal line

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11
Q

Curved ridge that parallels the superior nuchal line and extends laterally from the external occiput

A

inferior nuchal line

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12
Q

Occipital condyles articulate with the _ _ _ aka _

A

first cervical vertebrae, atlas

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13
Q

The _ _ are prominent oval projections at the anterolateral aspects of the foramen magnum

A

occipital condyles

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14
Q

The _ _ of the occipital bone is anterior to the foramen magnum

A

Basilar Part

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15
Q

The basilar part of the occipital bone articulates with the _ bone.

A

Sphenoid bone

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16
Q

The superior surface of the basilar aspect of the occipital bone and part of the sphenoid bone make up the _.

A

clivus

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17
Q

The _ _ form a large part of the walls of the skull.

A

Parietal Bones

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18
Q

The two parietal bones are located at the _ and _ aspects of the cranium

A

lateral and superior

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19
Q

The bone of the forehead is the _ bone.

A

frontal

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20
Q

The frontal bone is located at the _ and _ aspects of the cranium _ to the parietal bones.

A

anterior and superior, anterior

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21
Q

The anterior frontal bone helps form the roof of the _ (give other names)

A

orbits ( eye sockets)

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22
Q

The supraorbital margin is the part of the frontal bone that forms the _ border of the orbit

A

superior

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23
Q

The supraorbital notch or foramen is a small notch or hole that is found in the _ 3rd of the supraorbital margin.

A

medial

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24
Q

The _ _ of the frontal bone forms the forehead.

A

squamous part

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25
The gap of space in the bone lying between the orbital and the squamous parts of the frontal bone form the _ _
frontal sinuses
26
The _ bone is named due to the effects of age and time causing this region's hair to turn gray first
temporal
27
The two temporal bones lie at the lateral aspect of the cranium inferior to the _ bones.
parietal
28
The weakest cranial bone is the _ bone.
temporal
29
On the temporal bone, a thin, scale-like superior expansion of the temporal bone forming part of the lateral cranial wall is the _ _.
Squamous Part
30
On the temporal bone, a long, thin _ _ extends anteriorly from the anteriolateral aspect of the squamous part to articulate with the _ bone.
Zygomatic process, zygomatic
31
The Zygomatic Arch is formed by which processes of which 2 bones?
Zygomatic Process of the temporal bone and temporal process of the zygomatic bone
32
"zygoma" =
yoke or bar connecting 2 parts
33
The temporomandibular joint is located at the _ _.
Mandibular Fossa
34
The _ _ is the oval depression on the temporal bone used for articulation.
Mandibular Fossa
35
"mastos" =
breast
36
"oeides"=
shape
37
The _ _ is the breast-shaped projection on the temporal bone. (wtf)
Mastoid Process
38
The mastoid process extends _ from the _ aspect of the temporal bone.
inferiorly, posterior
39
The mandibular fossa articulates with the _ _ of the mandible.
Condyloid Process
40
The _ _ _ is a large canal that opens INTO the ear.
External Auditory Meatus
41
The external auditory meatus is _ to the mandibular fossa.
posterior
42
The _ _ is a long, slender, pencil-like structure on the temporal bone.
Styloid Process
43
True or false: styloid process is anterolateral to the external auditory meatus and extends superiorly.
FALSE! anteroMEDIAL and extending inferiorly
44
The CNVII or facial nerve passes anteriorly through a hole called the _ foramen which is between the _ and _ processes.
stylomastiod, styloid, mastoid
45
The _ _of the temporal bone is the hard (rock like) wedge shaped portion between the occipital bone and sphenoid bones of the middle ear.
petrous portion -petrous ~ "petrified wood"
46
"sphen"=
wedge
47
The sphenoid is named such because it is wedged between the cranial and _ bones
cranial and facial
48
The sphenoid bone forms the _ of the cranium anterior to the temporal and _ bones, also forming part of the floor and lateral walls of the _.
base, temporal and occipital bones, orbit
49
The _ of the sphenoid bone is the _ portion in the midline of the base of the cranium anterior to the occipital bone.
body, cubicle
50
"sella turcica"=
Turkish saddle, saddle with high back
51
The _ _ is a deep depression on the superior aspect of the body of he sphenoid bone.
sella turcica
52
The _ _ forms the posterior border of the sella turcica
dorsum sellae
53
The _ _ which is part of the sella turcica of the sphenoid bone houses the pituitary gland
hypophyseal fossa
54
The three pair of foramen contained within the greater wings of the sphenoid bone are:
foramen rotundum foramen ovale foramen spinosum
55
The middle meningeal artery passes thru the _ _ which is found in the sphenoid bone.
foramen spinosum
56
The _ _ are 2 broad lateral extensions of the sphenoid bone
greater wings
57
The _ wings are 2 thin _ shaped projections of the sphenoid bone
lesser, triangle
58
The lesser wings of the sphenoid bone extend into the _ wall of the orbit and form the anterior aspect of the _ surface of the sphenoid body.
posterior, superior
59
The pterygoid process of the sphenoid bone extends _ from the junction of the greater wing and the body.
inferiorly
60
The pterygoid process of the sphenoid bone consists of a _ and _ pterygoid plate that are separated by the oval shaped _ fossa.
medial and lateral, separated by the pterygoid fossa
61
The medial pterygoid plate of the sphenoid bone lies _ to the choanae
lateral
62
"ethmos"=
sieve-like
63
The _ bone is a sieve-like bone between two orbits at the _ base of the cranium.
Ethmoid, anterior
64
The cribriform plate on the ethmoid bone surround the base of the vertical _ _.
crista galli
65
The horizontal _ _ of the ethmoid bone has numerous foramina for the passage of nerve fibers
cribriform plate
66
The cribriform plate on the ethmoid bone forms the _ aspect of the cranium
anterior
67
The thin _ _ is perpendicular to the cribriform plate on the ethmoid bone and extends inferiorly to for the superior aspect of the nasal septum
perpendicular plate
68
The _ _ of the ethmoid bone consists of lateral aspects made of large air cells AKA ethmoid sinuses.
lateral mass
69
The _ _ of the ethmoid bone forms part of the orbit.
lateral mass
70
The middle _ _ or middle _ _ is the free, convoluted inferior margin of the medial plate of the lateral mass of the ethmoid bone.
middle nasal concha or middle nasal turbinate
71
The _ _ _ or _ _ _ is the part of the lateral mass of the ethmoid bone that is superior to the middle nasal concha and is difficult to see anteriorly.
superior nasal concha or superior nasal turbinate
72
Total number of skeletal bones making up the face(not cranium): _. Their names are :
14; everything is a pair of bones except mandible and vomer Never let men pee in zoos, very messy. -nasal (2) -lacrimal (2) -maxilla (2) -palatine (2) -inferior nasal concha/turbinate (2) -zygomatic (2) -vomer (1) -mandible (1)
73
Which of the 14 bones that make up the face only consist of one bone?
mandible and vomer
74
"maxilla"=
jaw bone
75
The _ forms the upper jaw
maxilla
76
The _ of the maxilla is pyramidal in shape and contains a large air sinus AKA maxillary sinus
body
77
The _ _ is the arch on the inferior border of the maxilla containing cavities where teeth from upper jaw are set.
alveolar PROCESSES
78
The horizontal _ process extends medially to articulate with the contralateral maxilla, forming the hard palate
palatine process
79
The large _ _ are found on the anterior surface of the body of the maxilla inferior to the infraorbital margin
infraorbital foramen
80
The maxilla contains how many pair of foramen? What is its name?
1, infraorbital foramen
81
"mando"=
chew, refers to function of the mandible
82
The _ or _ bone forms the lower jaw bone
mandible or chin bone
83
The _ or _ bone is a horseshoe shaped bone consisting of horizontal body and paired rami which are perpendicular to the body.
mandible, or chin bone
84
The rami of the mandible project _ from the posterior aspect of the body.
superiorly
85
The _ _ of the mandible is the arch on the superior border of the body housing the teeth of the lower jaw
alveolar process
86
The _ _ on the lateral aspect of the body of the mandible is inferior to the second premolar tooth.
mental foramen
87
The angle of the mandible is formed by the intersection of the _ and the _.
ramus and the body
88
The posterior _ _ or head of the mandible articulates at the superior border of the ramus with the mandibular fossa of the temporal bone
condyloid process or head
89
The neck of the mandible is the constricted area of the ramus _ to the head.
inferior
90
The coronoid process is found on the _ border of the ramus of the mandible.
superior
91
The mandibular foramen is the large central foramen on the _ surface of the ramus
medial
92
There are _ types of foramen that are part of the mandible and they are: _ and _ foramen.
2, mental and mandibular foramen
93
"zygoma"=
yoke or bar containing 2 parts
94
The zygomatic bones help form the zygomatic _ that connects the zygomatic and _ bones.
arch, temporal
95
The irregular _ bones help form part of the lateral wall and floor of the orbit.
zygomatic
96
The zygomatic bones contain the _ _ that makes up the posterior portion of the zygomatic arch.
temporal process
97
"nasus"=
nose
98
The nasal bones are 2 small bones that form the _ _ aspect of the nose AKA bridge inferior to the _ bone
anterior superior, frontal
99
"lacrimal"=
tear
100
The _ bones are small, thin irregular bones that form the _ portion of the _ wall of the orbit near the tear ducts.
lacrimal bones, anterior, medial
101
"concha"=
shell
102
A concha is a small, curved, irregular shell like bone that extends horizontally along the _ nasal wall _ to the hard palate.
lateral, superior
102
"platum"=
the palate
102
The other name for the inferior nasal conchae is :
inferior nasal turbinates
103
The irregular palatine bones form the _ portion of the hard palate _ to the maxilla
posterior, posterior
104
"vomer"=
to vomit; vomer is thought ot resemble ancient plow that threw up earth
105
The vomer is the _ irregular bone in the _ plane extending between the _ _ inferiorly to the sphenoid and ethmoid _/
vertical, median plane, between hard palate inferiorly to the sphenoid and ethmoid superiorly

Anatomy Dissection (39 decks)

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