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Anatomy Dissection > Ch 10 Bones of the Skull > Flashcards

Ch 10 Bones of the Skull Flashcards

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
Q

The gap of space in the bone lying between the orbital and the squamous parts of the frontal bone form the _ _

A

frontal sinuses

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26
Q

The _ bone is named due to the effects of age and time causing this region’s hair to turn gray first

A

temporal

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27
Q

The two temporal bones lie at the lateral aspect of the cranium inferior to the _ bones.

A

parietal

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28
Q

The weakest cranial bone is the _ bone.

A

temporal

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29
Q

On the temporal bone, a thin, scale-like superior expansion of the temporal bone forming part of the lateral cranial wall is the _ _.

A

Squamous Part

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30
Q

On the temporal bone, a long, thin _ _ extends anteriorly from the anteriolateral aspect of the squamous part to articulate with the _ bone.

A

Zygomatic process, zygomatic

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31
Q

The Zygomatic Arch is formed by which processes of which 2 bones?

A

Zygomatic Process of the temporal bone and temporal process of the zygomatic bone

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32
Q

“zygoma” =

A

yoke or bar connecting 2 parts

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33
Q

The temporomandibular joint is located at the _ _.

A

Mandibular Fossa

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34
Q

The _ _ is the oval depression on the temporal bone used for articulation.

A

Mandibular Fossa

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35
Q

“mastos” =

A

breast

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36
Q

“oeides”=

A

shape

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37
Q

The _ _ is the breast-shaped projection on the temporal bone. (wtf)

A

Mastoid Process

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38
Q

The mastoid process extends _ from the _ aspect of the temporal bone.

A

inferiorly, posterior

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39
Q

The mandibular fossa articulates with the _ _ of the mandible.

A

Condyloid Process

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40
Q

The _ _ _ is a large canal that opens INTO the ear.

A

External Auditory Meatus

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41
Q

The external auditory meatus is _ to the mandibular fossa.

A

posterior

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42
Q

The _ _ is a long, slender, pencil-like structure on the temporal bone.

A

Styloid Process

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43
Q

True or false: styloid process is anterolateral to the external auditory meatus and extends superiorly.

A

FALSE! anteroMEDIAL and extending inferiorly

44
Q

The CNVII or facial nerve passes anteriorly through a hole called the _ foramen which is between the _ and _ processes.

A

stylomastiod, styloid, mastoid

45
Q

The _ _of the temporal bone is the hard (rock like) wedge shaped portion between the occipital bone and sphenoid bones of the middle ear.

A

petrous portion
-petrous ~ “petrified wood”

46
Q

“sphen”=

47
Q

The sphenoid is named such because it is wedged between the cranial and _ bones

A

cranial and facial

48
Q

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 _.

A

base, temporal and occipital bones, orbit

49
Q

The _ of the sphenoid bone is the _ portion in the midline of the base of the cranium anterior to the occipital bone.

A

body, cubicle

50
Q

“sella turcica”=

A

Turkish saddle, saddle with high back

51
Q

The _ _ is a deep depression on the superior aspect of the body of he sphenoid bone.

A

sella turcica

52
Q

The _ _ forms the posterior border of the sella turcica

A

dorsum sellae

53
Q

The _ _ which is part of the sella turcica of the sphenoid bone houses the pituitary gland

A

hypophyseal fossa

54
Q

The three pair of foramen contained within the greater wings of the sphenoid bone are:

A

foramen rotundum
foramen ovale
foramen spinosum

55
Q

The middle meningeal artery passes thru the _ _ which is found in the sphenoid bone.

A

foramen spinosum

56
Q

The _ _ are 2 broad lateral extensions of the sphenoid bone

A

greater wings

57
Q

The _ wings are 2 thin _ shaped projections of the sphenoid bone

A

lesser, triangle

58
Q

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.

A

posterior, superior

59
Q

The pterygoid process of the sphenoid bone extends _ from the junction of the greater wing and the body.

A

inferiorly

60
Q

The pterygoid process of the sphenoid bone consists of a _ and _ pterygoid plate that are separated by the oval shaped _ fossa.

A

medial and lateral, separated by the pterygoid fossa

61
Q

The medial pterygoid plate of the sphenoid bone lies _ to the choanae

62
Q

“ethmos”=

A

sieve-like

63
Q

The _ bone is a sieve-like bone between two orbits at the _ base of the cranium.

A

Ethmoid, anterior

64
Q

The cribriform plate on the ethmoid bone surround the base of the vertical _ _.

A

crista galli

65
Q

The horizontal _ _ of the ethmoid bone has numerous foramina for the passage of nerve fibers

A

cribriform plate

66
Q

The cribriform plate on the ethmoid bone forms the _ aspect of the cranium

67
Q

The thin _ _ is perpendicular to the cribriform plate on the ethmoid bone and extends inferiorly to for the superior aspect of the nasal septum

A

perpendicular plate

68
Q

The _ _ of the ethmoid bone consists of lateral aspects made of large air cells AKA ethmoid sinuses.

A

lateral mass

69
Q

The _ _ of the ethmoid bone forms part of the orbit.

A

lateral mass

70
Q

The middle _ _ or middle _ _ is the free, convoluted inferior margin of the medial plate of the lateral mass of the ethmoid bone.

A

middle nasal concha or middle nasal turbinate

71
Q

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.

A

superior nasal concha or superior nasal turbinate

72
Q

Total number of skeletal bones making up the face(not cranium): _. Their names are :

A

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
Q

Which of the 14 bones that make up the face only consist of one bone?

A

mandible and vomer

74
Q

“maxilla”=

75
Q

The _ forms the upper jaw

76
Q

The _ of the maxilla is pyramidal in shape and contains a large air sinus AKA maxillary sinus

77
Q

The _ _ is the arch on the inferior border of the maxilla containing cavities where teeth from upper jaw are set.

A

alveolar PROCESSES

78
Q

The horizontal _ process extends medially to articulate with the contralateral maxilla, forming the hard palate

A

palatine process

79
Q

The large _ _ are found on the anterior surface of the body of the maxilla inferior to the infraorbital margin

A

infraorbital foramen

80
Q

The maxilla contains how many pair of foramen? What is its name?

A

1, infraorbital foramen

81
Q

“mando”=

A

chew, refers to function of the mandible

82
Q

The _ or _ bone forms the lower jaw bone

A

mandible or chin bone

83
Q

The _ or _ bone is a horseshoe shaped bone consisting of horizontal body and paired rami which are perpendicular to the body.

A

mandible, or chin bone

84
Q

The rami of the mandible project _ from the posterior aspect of the body.

A

superiorly

85
Q

The _ _ of the mandible is the arch on the superior border of the body housing the teeth of the lower jaw

A

alveolar process

86
Q

The _ _ on the lateral aspect of the body of the mandible is inferior to the second premolar tooth.

A

mental foramen

87
Q

The angle of the mandible is formed by the intersection of the _ and the _.

A

ramus and the body

88
Q

The posterior _ _ or head of the mandible articulates at the superior border of the ramus with the mandibular fossa of the temporal bone

A

condyloid process or head

89
Q

The neck of the mandible is the constricted area of the ramus _ to the head.

90
Q

The coronoid process is found on the _ border of the ramus of the mandible.

91
Q

The mandibular foramen is the large central foramen on the _ surface of the ramus

92
Q

There are _ types of foramen that are part of the mandible and they are: _ and _ foramen.

A

2, mental and mandibular foramen

93
Q

“zygoma”=

A

yoke or bar containing 2 parts

94
Q

The zygomatic bones help form the zygomatic _ that connects the zygomatic and _ bones.

A

arch, temporal

95
Q

The irregular _ bones help form part of the lateral wall and floor of the orbit.

96
Q

The zygomatic bones contain the _ _ that makes up the posterior portion of the zygomatic arch.

A

temporal process

97
Q

“nasus”=

98
Q

The nasal bones are 2 small bones that form the _ _ aspect of the nose AKA bridge inferior to the _ bone

A

anterior superior, frontal

99
Q

“lacrimal”=

100
Q

The _ bones are small, thin irregular bones that form the _ portion of the _ wall of the orbit near the tear ducts.

A

lacrimal bones, anterior, medial

101
Q

“concha”=

102
Q

A concha is a small, curved, irregular shell like bone that extends horizontally along the _ nasal wall _ to the hard palate.

A

lateral, superior

102
Q

“platum”=

A

the palate

102
Q

The other name for the inferior nasal conchae is :

A

inferior nasal turbinates

103
Q

The irregular palatine bones form the _ portion of the hard palate _ to the maxilla

A

posterior, posterior

104
Q

“vomer”=

A

to vomit; vomer is thought ot resemble ancient plow that threw up earth

105
Q

The vomer is the _ irregular bone in the _ plane extending between the _ _ inferiorly to the sphenoid and ethmoid _/

A

vertical, median plane, between hard palate inferiorly to the sphenoid and ethmoid superiorly

Anatomy Dissection (39 decks)

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