Skeletal System

Question 1

How many bones in adult skeleton

Answer 1

206 (can be variations)

Question 2

How many bones at birth

Answer 2

270

Question 3

What are sesamoid bones, give an example

Answer 3

Bones that form within tendons (ex. Patella)

Question 4

What is foremen (foramina)

Answer 4

Holes in bone, allowing passage for nerves and blood vessels

Question 5

Give examples of bone markings

Answer 5

Ridges, spines, bumps, depressions, canals, pores, slits, cavities, and articular surfaces

Question 6

What is the most complex part of the skeleton

Answer 6

The skull

Question 7

How many bones are in the skull (total, cranium and facial)

Answer 7

22 total, 8 cranium, 14 facial

Question 8

What are sutures

Answer 8

Immovable joints that join the skulls bones together

Question 9

What are the cavities within the skull

Answer 9

Cranial, orbital, nasal, oral, middle and inner ear, and paranasal

Question 10

What bones are the paranasal sinuses made of

Answer 10

Frontal, sphenoid, ethmoid, and maxillary

Question 11

What is lined my mucous membrane and is air-filled

Answer 11

Paranasal sinuses

Question 12

What does the cranium consist of

Answer 12

Calvaria(skull cap) and cranial base

Question 13

What do meninges do within the cranium

Answer 13

Separate brain from bones

Question 14

What are the 3 basins that comprise the cranial floor(base)

Answer 14

Anterior cranial fossa, middle cranial fossa, and posterior cranial fossa

Question 15

What do the three base cranial fossa hold

Answer 15

Anterior holds the frontal lobe of brain
Middle holds the temporal lobes of the brain
Posterior contains the cerebellum

Question 16

What are the 8 cranial bones

Answer 16

Frontal(1), parietal(2), temporal(2), occipital(1), sphenoid(1), ehtmoid(1)