Ch. 7 - Skeletal System (Axial) Flashcards

1
Q

Bones that form within tendons in response to stress. Are not articulated with other bones

A

Sesamoid Bones

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2
Q

These are extra bones in the skull

A

Sutural bones

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3
Q

The body has this many bones (on average)

A

206

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4
Q

Children are born with this many bones (on average)

A

270

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5
Q

Tubular passage/tunnel in a bone

A

Canal

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6
Q

Narrow ridge in bone

A

Crest

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6
Q

A rounded knob on bone

A

Condyle

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7
Q

A flare superior to a condyle in bone

A

Epicondyle

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8
Q

A smooth joint surface

A

Facet

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9
Q

Slit through a bone

A

Fissure

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10
Q

A hole through a bone

A

Foramen

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11
Q

A shallow, elongated basin in bone

A

Fossa

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12
Q

Raised, elongated ridge in bone

A

Line

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13
Q

A canal in bone

A

Meatus

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14
Q

A bony prominent outgrowth

A

Process

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15
Q

Bony outgrowth/protruding part

A

Protuberance

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16
Q

Cavity within a bone

A

Sinus

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17
Q

Sharp, slender, narrow, linear process

A

spine

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18
Q

Groove for a tendon/nerve/blood vessel in bone

A

Sulcus

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19
Q

Small rounded process on bone

A

Tubercle

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20
Q

Rough surface on bone

A

Tuberosity

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21
Q

Joints that appear as seams on the skull surface

A

Sutures

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22
Q

The skull has this many bones

A

22

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23
Q

There are this many cavities of in the skull

A

6

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24
Q

These are the 6 cavities in the skull

A

Paranasal sinuses
Orbits
Nasal Cavity
Oral Cavity
Ear Cavities
Cranial Cavity

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25
Q

Cranial bones compose the

A

Cranium

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26
Q

The 3 membranes in the brain that protect the skull

A

Meninges

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27
Q

The 3 layers of the meninges

A

Dura mater
Arachnoid mater
Pia mater

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28
Q

This hole in the skull allows the brain to meet the spinal cord

A

Foramen magnum

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29
Q

“dome of the top of the head”, Skullcap

A

Calvaria

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30
Q

The floor of the cranial cavity

A

base

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31
Q

This is the number of cranial bones

A

8

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32
Q

This cranial bone extends from the forehead to the coronal suture

A

Frontal bone

33
Q

Right underneath the eyebrows on the frontal bone is the

A

Supraorbital margin

34
Q

In the middle of each supraorbital margin is a

A

Supraorbital foramen

35
Q

The smooth area just above the nose (forehead) is the

A

Glabella

36
Q

These are the 8 cranial bones (and how many there are)

(only 2 are paired)

A

1 frontal bone
2 parietal bones
2 temporal bones
1 occipital bone
1 sphenoid bone
1 ethmoid bone

37
Q

These bones of the skull form the cranial roof and part of its walls

A

Parietal bones

38
Q

Each parietal bone is bordered by these 4 sutures

A

sagittal, coronal, lambdoid, and squamous

39
Q

This bone of the skull forms the rear and part of its base

A

Occipital bone

40
Q

The most distinguishing feature of the occipital bone is the

A

Foramen magnum

41
Q

This bone of the skull is located between the eyes

A

Ethmoid bone

42
Q

There are this many facial bones

A

14

43
Q

These are the 14 facial bones and their numbers:
(all are paired except for 2)
MPZLNIVM

A

2 Maxillae
2 Palatine Bones
2 Zygomatic Bones
2 Lacrimal Bones
2 Nasal bones
2 Inferior Nasal Conchae
1 Vomer
1 Mandible

44
Q

These facial bones make up the upper jaw

A

Maxillae

45
Q

Maxillae are joined by this suture

A

Intermaxillary suture

46
Q

The root of each tooth is placed into a deep socket called the

A

Alveolus

47
Q

This is the strongest bone of the skull and the only one that can move significantly

A

Mandible

48
Q

This part of the mandible meets with the temporal bone

A

Mandibular condyle

49
Q

The junction between the temporal bone and mandible form this

A

Temporomandibular joint

50
Q

There are this many bones associated with the skull but not a part of it

A

7

51
Q

Of the 7 associated but not attached to the skull, these are found in the ear (3 in each ear)

A

Auditory Ossicles

52
Q

Of the 7 associated but not attached to the skull, this bone is found below the mandible

A

Hyoid bone

53
Q

These are the 3 auditory ossicles

A

stapes
malleus
incus

54
Q

There are this many vertebrae in the vertebral column

A

33

55
Q

There are this many intervertebral discs

A

23

56
Q

These are the different kinds of vertebrae

A

Cervical
Thoracic
Lumbar
Sacral
Coccygeal

57
Q

There are this many cervical vertebrae

A

7

58
Q

There are this many thoracic vertebrae

A

12

59
Q

There are this many lumbar vertebrae

A

5

60
Q

There are this many sacral vertebrae
(That eventually fuse)

A

5

61
Q

There are this many coccygeal vertebrae
(That eventually fuse)

A

4

62
Q

Once the bones of the sacral and coccygeal vertebrae fuse, there are this many vertebrae in the column

A

26

63
Q

At birth, the vertebral column is what shape?

A

C-shaped

64
Q

A bend in the vertebral canal that is concave in the anterior direction

A

Kyphosis

65
Q

A bend in the vertebral column that is concave in the posterior direction

A

Lordosis

66
Q

Abnormal lateral curvature in the vertebral column

A

Scoliosis

67
Q

AKA “hunchback”

A

hyperhyphois

68
Q

AKA “swayback”

A

Hyperlordosis

69
Q

This is the soft, jelly-like inner portion of a vertebral disc

A

Nucleus pulposus

70
Q

This is the hard, fibrous outer ring of a vertebral disc

A

Anulus fibrosis

71
Q

Name for the C1 vertebra

A

Atlas

72
Q

Name for the C2 vertebra

A

Axis

73
Q

The “head” of the sternum is the

A

Manubrium

74
Q

The “body” of the sternum

A

Gladiolus

75
Q

The bottom tip of the sternum

A

Xiphoid process

76
Q

How many pairs of ribs are there

A

12 pairs

77
Q

The first 7 ribs are “ “ rib

A

True ribs

78
Q

5 pairs of ribs are called “ “ ribs

A

False ribs

79
Q

Ribs 11 and 12 are “ “ ribs

A

Floating ribs

80
Q

The 11 gaps between the spaces are called

A

Intercostal Spaces