ANAT NOTES 7 PART 1

Question 1

how many bones in axial skeleton?

Answer 1

80

Question 2

what is the only movable bone in face?

Answer 2

mandible

Question 3

two main parts of mandible

Answer 3

• horizontal body

- two upright rami

Question 4

4 paranasal sinuses

Answer 4

• frontal sinus
• ethmoidal air cells (sinus)
• sphenoidal sinus
• maxillary sinus

Question 5

how many vertebrae in the vertebral column?

Answer 5

31

Question 6

three parts of the sternum

Answer 6

manubrium
body
xiphoid process

Question 7

rib attaches to vertebrae by…

Answer 7

ligaments

Question 8

fontanelle

Answer 8

last part of the bone to solidify

Question 9

joints A.K.A.

Answer 9

articulations

Question 10

how many pairs of cranial nerves?

Answer 10

12

Question 11

largest and strongest facial bone?

Answer 11

mandible (lower jaw)

Question 12

Air-filled sinuses are located within:

Answer 12

• Frontal bone
• Ethmoid bone
• Sphenoid bone
• Maxillary bones

Question 13

bone lies inferior to the mandible

Answer 13

hyoid bone

Question 14

only bone with no direct articulation with any other bone

Answer 14

hyoid bone

Question 15

acts as a movable base for the tongue

Answer 15

hyoid bone

Question 16

what surrounds and protects the spinal cord?

Answer 16

the vertebral column

Question 17

vertebral column is held together by…

Answer 17

ligaments

Question 18

serves as attachment sites for muscles on neck and back

Answer 18

the vertebral column

Question 19

sacrum

Answer 19

five fused bones

Inferior to lumbar vertebrae

Question 20

coccyx

Answer 20

inferior to sacrum

Question 21

the atlas (C1) lacks

Answer 21

a body and spinous process

Question 22

what allows flexion and extension of neck? Supports the skull?

Answer 22

atlas (C1)

Question 23

the axis (C2) has

Answer 23

a body and spinous process

Question 24

Cleft palate

Answer 24

A common congenital disorder; right and left halves of palate fail to fuse medially

Question 25

Stenosis of the lumbar spine

Answer 25

Narrowing of the vertebral canal; can compress roots of spinal nerves

Question 26

Scoliosis

Answer 26

an abnormal lateral curvature

Question 27

Kyphosis

Answer 27

an exaggerated thoracic curvature

Question 28

Lordosis

Answer 28

an accentuated lumbar curvature; “swayback”

Question 29

The Axial Skeleton Throughout Life

Answer 29

Membrane bones begin to ossify in second month of development;
Bone tissue grows outward from ossification centers

Question 30

Fontanelles

Answer 30

Unossified remnants of membranes