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Anatomy > Ch 7 Skull and Axial Structures > Flashcards

Ch 7 Skull and Axial Structures Flashcards

1
Q

Axial skeleton contains

A
  • Skull
  • vertebral column
  • Thoracic cage
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2
Q

cranium bones

A

calvarium
base of cranium

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3
Q

calvarium is located…

A
  • Roof of cranium
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4
Q

Base of cranium is located…

A
  • Floor of cranium
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5
Q

Bones of the calvarium

A

Parietal bone
Frontal bone
Occipital bone

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6
Q

Where on the head is the parietal bone

A

middle/side of head

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7
Q

Where on the head is the frontal bone

A

front of head

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8
Q

Where on the head is the occipital bone

A

back of head

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9
Q

Bones of the base of cranium

A

ethmoid
sphenoid
occipital
temporal
parts of frontal and parietal

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10
Q

Main sutures

A

Coronal
Sagittal
lambdoid
squamous suture

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11
Q

coronal suture is located…

A

Between frontal and parietal

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12
Q

sagittal suture location

A
  • Between parietal bones
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13
Q

Lambdoid suture location

A
  • Occipital and parietal
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14
Q
  • Squamous suture
A
  • Temporal and parietal
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15
Q

Cranial fossa features

A
  • Floor of cranial cavity w 3 cranial fossae
  • Anterior cranial fossa
  • Middle cranial fossa
  • Posterior cranial fossa
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16
Q

What is the VAN Complex

A
  • Vein
  • Artery
  • Nerve
  • Go into foramen
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17
Q

Major cavities of the skull

A

Cranial cavity
Orbit
Paranasal sinuses
Nasal cavity
Oral cavity

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18
Q

Purpose of cranial cavity

A

houses the brain

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19
Q

Purpose of the orbit

A

houses the eyes

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20
Q

name the 3 paranasal sinuses

A

Frontal sinus
Ethmoidal sinuses
Maxillary sinus

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21
Q

frontal sinus location

A

highest up sinus

22
Q
  • Ethmodial sinuses location
A
  • Middle next to eyes
23
Q
  • Maxillary sinus location
A
  • Cheek area
24
Q

How many facial bones are there

A

14

25
Q

Sex differences in skull

A
  • Male squared off
  • Women rounded
26
Q

5 sections of the vertical column

A
  • Cervical (C1-C7)
  • Thoracic (T1-T12)
  • Lumbar (L1-L5)
  • Sacrum (S1-S5)
  • Coccyx (Co1-Co4))
27
Q

How many cervical spine bones

A

7
(C1-C7)

28
Q

number of thoracic spine bones

A

12
(T1-T12)

29
Q

number of Lumbar spine bones

A

5
(L1-L5)

30
Q

Number of bones in sacrum

A

5
(S1-S5)

31
Q

Number of bones in coccyx

A

4
(Co1-Co4)

32
Q

4 types of spinal curvature

A

cervical
thoracic
lumbar
pelvic

33
Q

cervical curvature is called

A
  • Lordosis
34
Q

Thoracic curvature is called

A
  • Kyphosis
35
Q

Lumbar curvature is called

A
  • Lordosis
36
Q

Vertebral anatomy features

A

body
vertebral arch
pedicles
laminae
vertebral canal
intervertebral foramina

37
Q

vertebral body

A
  • Weight bearing region, separated by intervertebral disc
38
Q
  • Vertebral arch
A
  • Attaches to body to form vertebral foramen
39
Q
  • Pedicles
A
  • Feet of vertebral arch
40
Q
  • Laminae
A
  • Posterior extensions of vertebral arch
41
Q
  • Vertebral canal
A
  • Stacked vertebral foramina
    - Contains spinal cord
42
Q
  • Intervertebral foramina
A
  • Passage for spinal nerves
43
Q

What is the atlas

A

First cervical vertebra
C1

44
Q

Atlas features

A
  • Articulates with the occipital condyles of the skull
  • Supports the head
  • No body of vertebra
45
Q

what is the axis

A

Second cervical vertebra
C2

46
Q

Axis features

A
  • Dens axis (tooth of axis)
47
Q

Atlantoaxial Joint

A
  • the dens of axis serves as a pivot point for atlas
  • Permits rotation of the head
48
Q

Thoracic cage is composed of…

A
  • Thoracic vertebrae (posterior)
    • Ribs laterally
    • Sternum anteriorly
49
Q

How many ribs are there

A
  • 12 pairs
50
Q
  • True ribs
A
  • Ribs 1-7
    - Costal cartilage attach to sternum
51
Q
  • False Ribs
A
  • Ribs 8-12
    - Costal cartilage do not attach directly to sternum
52
Q
  • Floating ribs
A
  • 11 and 12

Anatomy (19 decks)

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