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ANAT 316 FINAL > Ch. 1 - Skull > Flashcards

Ch. 1 - Skull Flashcards

1
Q

What are the two components to the skull?

A

facial skeleton (viscerocranium) and cranial vault (neurocranium)

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2
Q

How many bones are there in the facial and cranial component of the skull?

A

14 facial bones, 8 cranial bones

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3
Q

The frontal view of the skull includes every skull bone except…

A

occipital and palatine bones

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4
Q

Which bone is the only bone not directly attached to the skull?

A

mandible

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5
Q

Which facial bone is diamond shaped?

A

zygomatic bone

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6
Q

What is the name of the process located on the maxilla and mandible?

A

alveolar process (contains the teeth)

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7
Q

What do the foramina located on the skull allow?

A

passage of nerves

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8
Q

Which bone is responsible for ethnic facial features

A

zygomatic bone

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9
Q

What makes up the zygomatic arch?

A

temporal process of the zygomatic bone + the zygomatic process of the temporal bone

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10
Q

What are the names of the two sections of the temporal bone?

A

squamous (flat) and petrous (rocky)

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11
Q

What makes up the temporal fossa?

A

squamous temporal bone with the greater wing of the sphenoid + lower portion of the parietal bone

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12
Q

Where do the frontal bone and the parietal bone meet?

A

coronal suture

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13
Q

Where do the parietal bone and the occipital bone meet?

A

lamboid suture

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14
Q

What is the name of the area where the parietal, frontal, sphenoid, and temporal bones join?

A

pterion

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15
Q

Where do the paired parietal bones unite?

A

sagital suture

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16
Q

What feature of the occipital bone is responsible for muscle attachment?

A

superior nuchal line

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17
Q

Where do the occipital condyles and the atlas articulate?

A

atlanto-occipital joint

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18
Q

Where does the spinal cord pass through?

A

foramen magnum

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19
Q

What separates the nasal choanae?

A

vomer bone

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20
Q

What is the hard palate composed of?

A

palatine bones posteriorly + palatine processes of the maxilla anteriorly

21
Q

The pterygoid plates and the inferior orbital fissure are lateral to which feature?

A

choanae

22
Q

What is the floor of the anterior cranial fossa made up of?

A

horizontal plate of the frontal bone and the cribriform plate and crista galli

23
Q

What makes up the roof of the orbit?

A

horizontal plate of the frontal bone

24
Q

Which cranial fossa is butterfly shaped?

A

middle cranial fossa

25
Q

What is the central region of the sphenoid bone?

A

sella turcica (roof of sphenoid body)

26
Q

Where are the optic canals located?

A

between the anterior clinoid processes

27
Q

Which feature is anterior to the foramen magnum and runs up towards the sella turcica

A

clivus

28
Q

What do the grooves on the wall of the fossa indicate?

A

the course of the transverse and sigmoid sinuses

29
Q

What does the frontal bone contain?

A

frontal sinuses and the supraorbital notch

30
Q

Which bones form the walls and roof of the cranium?

A

parietal bones

31
Q

What are the main features of the occipital bone?

A

foramen magnum, hypoglossal canals, occipital condyles

32
Q

The auditory tube, middle ear and inner ear are part of which bone?

A

temporal bone

33
Q

The upper half of the temporal bone is __________ while the lower half is __________.

A

squamous, petrous

34
Q

Which bone has a vertical and horizontal plate and two lateral masses?

A

ethmoid bone

35
Q

These paired shell-shaped bones arise from the maxillae.

A

inferior concha

36
Q

How many bones are present in the superior alveolar process?

A

16

37
Q

The horizontal palatine process is the anterior _____ of the hard palate.

A

4/5

38
Q

What are the two foramina of the maxilla

A

infraorbital and incisive foramina

39
Q

Which bone is L shaped?

A

mandible or palatine

40
Q

The vertical arm of the mandible is called the ______ and the horizontal arm is called the ______.

A

ramus, body

41
Q

Where do the two halves of the mandible meet?

A

mental protuberance (point of the jaw)

42
Q

What do the condyloid processes articulate with?

A

mandibular fossa of the temporal bone

43
Q

Where does the nerve to the lower teeth pass through?

A

mandibular foramen

44
Q

The horizontal plate of the palatine bone is the _____ of the hard palate.

A

1/5

45
Q

The vertical plate of the palatine bone forms the posterior ___ of the lateral nasal wall

A

1/3

46
Q

Where are the tear ducts located?

A

lacrimal bone

47
Q

What shape is the vomer bone?

A

triangle

48
Q

Which bone hangs below the floor of the mouth?

A

hyoid bone

49
Q

What is suspended from the hyoid bone?

A

larynx

ANAT 316 FINAL (3 decks)

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