ch 7 - axial skeleton

Question 1

axial skeleton

Answer 1

forms longitudinal axis of the body…includes the bones of the head and the trunk

Question 2

how many bones in axial skeleton

Answer 2

80 bones

Question 3

what are the 80 bones of the axial skeleton

Answer 3

8 cranial bones
14 facial bones
6 auditory ossicles and 1 hyoid
24 ribs and the sternum
24 vertebrae, sacrum and coccyx

Question 4

how many bones does the skull have

Answer 4

22 total
- 8 cranial
- 14 facial

Question 5

joints or articulations

Answer 5

connects 2 or more bones

Question 6

This passageway connects the nasal cavity and the orbit

Answer 6

lacrimal canal
- lacrimal canal is responsible for draining tears from the eye into nasal cavity

Question 7

what are the 8 cranial bones

Answer 7

frontal
2 parietal
2 temporal
sphenoid
ethmoid
occipital

Question 8

what are the 5 parts of the temporal bone

Answer 8

• squamous (outside) + petrous (inside) part
• zygomatic process of temporal bone
• mastoid process
• styloid process
• external auditory meatus

Question 9

what are the 4 parts of the sphenoid bone

Answer 9

• greater wing
• lesser wing
• pterygoid plate (medial and lateral)
• sella turcica

Question 10

what are the 3 parts of the ethmoid bone

Answer 10

• crista galli
• cribriform plate
• perpendicular plate

Question 11

what are the 2 parts of the occipital bone

Answer 11

• occipital condyles
• foramen magnum

Question 12

what are the 7 parts of the mandible

Answer 12

• body of the mandible
• ramus of the mandible
• coronoid process
• condylar process
• mandibular notch
• alveolar processes
• angle of the mandible

Question 13

what are the 6 foramen in the front of the face

Answer 13

• supra orbital foramen
• optic canal
• superior orbital fissure
• inferior orbital fissure
• infra orbital foramen
• mental foramen

Question 14

what are the first 8 foramen of the cranial fossa

Question 15

what are the last 4 foramen of the cranial fossa

Answer 15

• foramen magnum
• hypoglossal canal
• jugular foramen
• auditory meatus

Question 16

4 sutures of the skull

Answer 16

coronal
sagittal
lambdoid
squamous

Question 17

what are the curves of the vertebral column in order

Answer 17

• cervical curve
• thoracic curve
• lumbar curve
• sacral curve

Question 18

how many cervical vertebrae

Answer 18

7

Question 19

how many thoracic vertebrae

Answer 19

12

Question 20

how many lumbar vertebrae

Answer 20

5

Question 21

what are the primary curves and why

Answer 21

thoracic and sacral bc they are present during fetal development

Question 22

what are secondary curves and why

Answer 22

cervical and lumbar bc they develop after birth

Question 23

true ribs

Answer 23

ribs 1-7, connect to the sternum by costal cartilages

Question 24

false ribs

Answer 24

ribs 8-10 do not attach directly to the sternum

Question 25

vertebrochondrial ribs

Answer 25

ribs 8-10 aka false ribs

Question 26

floating or vertebral ribs

Answer 26

ribs 11-12, have no connection to the sternum

Question 27

The bones that make up the eye socket, or orbit, include the

Answer 27

lacrimal, ethmoid, and sphenoid

Question 28

The lines, tubercles, crests, ridges, and other processes on the bones represent areas that are used primarily for

Answer 28

attachment of muscles to bones

Question 29

The superior and middle nasal conchae can be found as a part of which bone?

Answer 29

ethmoid

Question 30

the cribiform plate belongs to what bone

Answer 30

ethmoid

Question 31

scoliosis

Answer 31

abnormal lateral curvature of the spine

Question 32

kyphosis

Answer 32

excessive posterior curvature of the thoracic vertebral column

Question 33

lordosis

Answer 33

sway back due to anterior exaggeration of the lumbar curvature

Question 34

The skull articulates with the vertebral column at

Answer 34

the occipital condyles