Chapter 7 Axial Skeleton

Front 1

How many bones form the axial skeleton?

Back 1

80 Bones

Front 2

Skull Bones?

Back 2

8 Cranial 14 Facial

Front 3

Bones associated with the skull?

Back 3

6 Auditory ossicles (malleus, incus, stapes) smallest bone in body also the hyoid bone (no articulation)

Front 4

The vertebral column is formed of?

Back 4

24 Vertebrae

Sacrum

Coccyx

Front 5

The thoracic cage is formed of?

Back 5

24 Ribs and the sternum

Front 6

How many bones are in the skull?

Back 6

22 Bones

Front 7

What are the 8 cranial bone?

Back 7

Frontal, Parietal (2), occipital, temporal (2) sphenoid and ethmoid

Front 8

What are the 14 Facial bones?

Back 8

Maxilla (2), palatine (2), nasal (2), zygomatic (2), lacrimal (2), inferior nasal concha (2), vomer and mandible

Front 9

What is a suture?

Back 9

immovable joints of the skull

Front 10

What are the 4 sutures?

Back 10

Lambdoid, Coronal, Sagittal and Squamous

Front 11

What 6 things form the orbits?

Back 11

Frontal bone (roof)

Maxilla (floor)

Maxillary, Lacrima and & ethmoid ( rim and medial wall)

Sphenoid and palatine (posterior wall)

Zygomatic (lateral wall)

Front 12

How many vertebrae are there?

Back 12

24

Front 13

What are neck vertebrae called and how many are there?

Back 13

Cervical Vertebrae (7)

Front 14

The cervical vertebrae has?

Back 14

Transverse foramen c1 and c2

Front 15

C1?

Back 15

Atlas, allows us to move our head

Front 16

C2?

Back 16

Axis, allows us to move our head

Front 17

Upper back vertebrae is called? and how many?

Back 17

Thoracic vertebrae (12)

Front 18

The Thoracic vertebrae?

Back 18

Attaches to ribs

long spines projection down

Front 19

The lower back vertebrae is called? and how many?

Back 19

Lumbar vertebrae (5)

Front 20

Lumbar vertebrae?

Back 20

thick bodies that support most of weight

Front 21

Cervical Curve?

Back 21

Secondary curve, develops as a baby learns how to balance head (not born with them)

Front 22

Thoracic curve?

Back 22

primary curve

Front 23

Lumbar curve?

Back 23

Secondary curve develops as a baby learns how to walk (not born with them)

Front 24

Sacral curve?

Back 24

Primary curve

Front 25

Kyphosis?

Back 25

Exaggerated thoracic curvature, hunching all the time

Front 26

Lordosis?

Back 26

Exaggerated lumbar curvature, baby weight

Front 27

Scoliosis?

Back 27

Lateral curvature

Front 28

The sacrum?

Back 28

Fusion of 5 vertebrae (age 25-30)

Front 29

Coccyx?

Back 29

fusion of 4 vertebrae

Front 30

A vertebrae has what 8 things?

Back 30

•Vertebral body

•Vertebral foramen – forspinal cord

•Pedicle

•Lamina

•Transverse processes

•Transverse foramen – forspinal nerves (cervical vertebrae only)

•Spinousprocess

•Articular process & facets

Front 31

Nucleus Pulposus?

Back 31

Is a intervertebral disk, which is inner jelly like center

Front 32

Annulus Fibrosis?

Back 32

Is an intervertebral disks, which is an outer ring of fibrocartilage

Front 33

The thoracic cage supports?

Back 33

The thoracic cavity, consists of thoracic vertebrae, ribs and sternum

Front 34

How many ribs are there? and what kind of bone are ribs?

Back 34

12 pairs of long curved flat bones

Front 35

Ribs are extend from?

Back 35

the thoracic vertebrae

Front 36

True Ribs?

Back 36

1-7 connect to sternum

Front 37

False Ribs?

Back 37

8-12 connect to sternum vial extended cartilage

Front 38

Floating Ribs?

Back 38

11 & 12 (false) connect to sternum vial extended cartilage

Front 39

The sternum is made three parts named?

Back 39

Manubrium articulates with clavicles

sternal body long portion

xiphoid process attaches diaphragm and rectus abdominis muscles