Parts of the axial skeleton

Question 1

How many bones does an adult human skeleton have?

Answer 1

206 bones

Question 2

How are the bones divided up in the body?

Answer 2

divided into the axial and the appendicular skeletons

Question 3

Define the axial skeleton/name the bones in this

Answer 3

The axial skeleton consists of the skull, spine, ribs and sternum (breastbone)

Question 4

What is another name for the breastbone?

Answer 4

sternum

Question 5

What is the sternum?

Answer 5

the breastbone

Question 6

What is another name for the skull?

Answer 6

the cranium

Question 7

How many bones does the cranium consist of?

Answer 7

20 bones fused together

Question 8

How are the bones of the cranium joined together?

Answer 8

they are fused together

Question 9

How many bones make up the spine?

Answer 9

33 bones called vertebrae

Question 10

How are the vertebrae of the spine arranged together?

Answer 10

They are arranged in five regions:
cervical (neck) = 7
Thoracic (chest) = 12
Lumbar (back) = 5
Scarum (hip) = 5
Coccyx (tail) = 4

Question 11

What is another name for the neck region of the spine?

Answer 11

the cervical

Question 12

What is another name for the chest region of the spine?

Answer 12

thoracic

Question 13

What is another name for the back region of the spine?

Answer 13

lumbar

Question 14

What is another name for the hip region of the spine?

Answer 14

sacrum

Question 15

What is another name for the tail of the spine?

Answer 15

coccyx

Question 15

How are the first 24 vertebrae held together? Can they move or not?

Answer 15

by ligaments and can move slightly relative to one another

Question 16

What are vertebrae separated by?

Answer 16

by intervertebral discs of cartilage

Question 17

Describe the properties of the intervertebral discs of cartilage between the vertebrae

Answer 17

These discs have a hard outer layer and a soft, jelly-like centre.

Question 18

What do the discs between vertebrae act as?

Answer 18

They act as shock absorbers and protect the vertebrae

Question 19

learn how to draw the TS of a typical vertebra: label the following…

Answer 19

Neural spine (for muscular attachment)
Transverse canal (contains the spinal cord)
centrum (gives strength)
Facet (where next vertebra rotates against)

Question 20

Do vertebrae all have the same shape?

Answer 20

No, depending on where they are located in the spine

Question 21

What does the rib cage consist of?

Answer 21

12 pairs or ribs and the sternum (breastbone)

Question 22

What are true ribs?

Answer 22

The top seven ribs attached to the breastbone at the front of the body

Question 23

What are false ribs?

Answer 23

The next three pairs (after the true 7 ribs) attached to each other at the front of the chest by cartilage

Question 24

What are the bottom 2 ribs called?

Answer 24

floating ribs

Question 25

What are floating ribs?

Answer 25

The two bottom ribs that are only attached to the spine (don’t attach to anyht==thing at the front of the body)