Axial Skeleton

Question 1

how many divisions divide the skeletal system

Answer 1

Two divisions

Question 2

What are the two divisions of the skeletal system

Answer 2

Axial ( consists of the bones that form the head and trunk ( central part ( thoracic and abdomen ) of a vertebrate.)
Appendicular ( the upper and lower extremities, which include the shoulder girdle and pelvis )

Question 3

How many bones are in the axial skeleton

Answer 3

80 bones ( skull, vertebrae column, and thoracic)

Question 4

What is the upper part of the skull and how many bones does it consist of

Answer 4

Cranium, and consist of 8 cranial bones

Question 5

How many bones form the face

Answer 5

The face has 14 bones called facial bones.

Question 6

what is a mandible

Answer 6

Helps with chewing and eating

Question 7

How bones reside in the inner ears

Answer 7

6 inner ear bones, three in each ear, and help in sound

Question 8

Fontanels/soft spots

Answer 8

gaps in the skull of babies during birth periods because they aren’t well fused together yet. Provide flexibility and help skull to shape and brain growth

Question 9

By what age does Fontanels close

Answer 9

By age two

Question 10

How much does a skull weight

Answer 10

1 kilogram

Question 11

did you know brain size?

Answer 11

We have bigger brains and relatively light skulls

Question 12

What does the vertebral column support

Answer 12

the head, and incloses and protects the spinal cord and nerve roots

Question 13

How many bones does a vertebral column have

Answer 13

26 bones, also stacked one top of the other called vertebrae

Question 14

How many sections is the vertebrae column divided into

Answer 14

it is divided into 5 sections

Question 15

what are the 5 sections of the vertebrae column

Answer 15

cervical, 
thoracic,
lumbar , 
Sacral ,
Coccygeal

Question 16

How many vertebrae does a child possess?

Answer 16

33 vertebrae, and as their bodies mature, the sacral and coccygeal fuse together

Question 17

Is the spine vertebrae line curved or straight? and what does it do?

Answer 17

it has 4 distinct curves and increases the carrying strength of the vertebral column and makes balance possible when standing up

Question 18

what do the joints between the vertebrae cushion?

Answer 18

The disks of cartilage between them, which helps with bending and twisting

Question 19

Because of the gravity, what happens to our vertebrae when we go to sleep?

Answer 19

Because of the pressure exerted on the vertebrae by gravity, we go to bed a few inches shorter than when we woke up in the morning. The cartilage disk recovers as we sleep but as we get older they lose their elasticity, therefore ex. a 80 year old men is shorter than he was in his younger days