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NSG 10 > SKELETAL: AXIAL SKELETON > Flashcards

SKELETAL: AXIAL SKELETON Flashcards

1
Q

how many bones does the skull have

A

22 bones

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2
Q

house and protect the brain

A

cranial bone or cranium

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3
Q

immovable bones are called

A

sutures

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4
Q

top of the skull is called the

A

calvaria

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5
Q

connected to the two parietal bones

A

frontal bone

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6
Q

suture that connects parietal and frontal bone

A

coronal suture

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7
Q

superior border of each of the orbits contains a _ ; allows passage of a blood vessel and nerve for the eyelid and eye

A

supraorbital foramen or notch

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8
Q

between two orbits is the smooth region of the bone called

A

glabella

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9
Q

what sinus does the frontal bone contain

A

frontal sinus

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10
Q

the frontal bone forms the _ which supports lobes of the brain

A

anterior cranial fossa

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11
Q

two parietal bones are joined by what suture?

A

sagittal suture

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12
Q

parietal bones are connected to the occipital bone by what suture

A

lambdoid suture

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13
Q

temporal bones are connected by the skull by the

A

squamous sutures

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14
Q

this part of the temporal bone meets the parietal bone

A

squamous part

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15
Q

it joins to form the what arc? (bridge across the side of the skull)

A

zygomatic arch

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16
Q

the zygomatic process has an oval-shaped fossa on the inferior side called the

A

mandibular fossa

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17
Q

this part of the temporal bone has the prominent external auditory canal (transmits sound waves toward the eardrum, or tympanic membrane)

A

tympanic part

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18
Q

this part of the temporal bone extends inward toward the center of the skull

A

petrous part

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19
Q

located on the posterior surface of the petrous part and is the opening for a nerve controlling hearing and balance

A

internal auditory canal

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20
Q

large bony inferior projection that can be seen and felt just posterior to the external ear

A

mastoid process

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21
Q

cavities inside the mastoid process

A

mastoid air cells

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22
Q

when mastoid air cells become infected it causes

A

mastoiditis

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23
Q

projects from the lower portion of the petrous part of the temporal bone ; serves as attachment site for three muscles

A

styloid process

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24
Q

located between the styloid process and mastoid process and allows for passage of a nerve controlling facial muscles

A

stylomastoid foramen

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25
Q

three important foraminas:

A

jugular
carotid
foramen lacerum

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26
Q

allow jugular veins to carry majority of the blood away from the brain

A

jugular foramina

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27
Q

major entry point for blood delivery to the brain

A

carotid

28
Q

easily noticeable opening in a dried skull at the border of the petrous part and the sphenoid bone

A

foramen lacerum

29
Q

makes up the majority of the skull’s posterior wall and base

A

occipital bone

30
Q

most prominent feature of the occipital bone, the opening were the brainstem connects to the spinal cord

A

foramen magnum

31
Q

this region forms the _ that support the cerebellum of the brain

A

posterior canal fossae

32
Q

two rounded projections on either side of the foramen magnum

A

occipital condyles

33
Q

points of attachment for several neck muscles that move the head

A

nuchal line

34
Q

single bone that extends completely across the skull (resembles a butterfly)

A

sphenoid bone

35
Q

shape of the prominence formed within the floor of cranial cavity

A

sella turcica

36
Q

within the body of the sphenoid bone are the

A

sphenoidal tissues

37
Q

located on each side of the sphenoidal bone just anterior to the sella turcica

A

optic canal

38
Q

the lateral portions of the sphenoid bone form the

A

middle cranial fossa

39
Q

where cranial nerves controlling eye movement enter the orbit

A

superior orbital fissure

40
Q

porous, fragile bone centrally located in the skull

A

ethmoid bone

41
Q

large portion of the nasal cavity

A

nasal septum

42
Q

sinuses within the ethmoid bone form the

A

ethmoidal sinuses

43
Q

prominent ridge of the ethmoid bone

A

crista galli

44
Q

houses one of the two olfactory bulbs that transmit signals for the sense of smell

A

cribriform plates

45
Q

cribriform plates contain numerous foramina called

A

olfactory foramina

46
Q

extending inferiorly from the ethmoid bone is a central, thin, bony plate called the

A

perpendicular plate

47
Q

two scroll shaped bones protruding medially from the ethmoid bone

A

conchae

47
Q

openings within particular bones that open into the nasal cavity

A

paranasal sinuses

48
Q

cone shaped fossae

A

orbits

49
Q

rounded opening anteriorly and is separated into right and left halves by the nasal septum

A

nasal cavity

50
Q

how many bones are in the face

A

14 bones

51
Q

commonly known as cheekbones, anterior to sphenoid bones

A

zygomatic bones

52
Q

anterior and inferior to the zygomatic bones ; fused in the center

A

maxilla

53
Q

have horizontal plates that fuse centrally to form the posterior portion of the hard palate

A

palatine bones

54
Q

smallest of the skull bones and house the depression through which the nasolacrimal duct enters the canal

A

lacrimal bones

55
Q

form the bridge of nose

A

nasal bones

56
Q

only skull bone that is freely movable

A

mandible

57
Q

forms most of the posterior of the nasal septum

A

vomer

58
Q

one of the three conchae in the nasal cavity

A

inferior nasal concha

59
Q

important for speech and swallowing

A

hyoid bone

60
Q

located in the vertebral column region with the greatest range of motion

A

cervical vertebrae

61
Q

support the majority of the body’s wieght

A

lumbar vertebrae

62
Q

located between two hip bones

A

sacrum

63
Q

referred to as tailbone

A

coccyx

64
Q

commonly called the rib cage ; contains the heart

A

thoracic cage

65
Q

breastbone ; describe as sword shaped

A

sternum

66
Q
A

NSG 10 (19 decks)

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