7.4 QUESTIONS

Question 1

How many bones does the adult human body have?

Answer 1

The adult human body has 206 bones.

Question 2

The skeletal system is made of:

Answer 2

Organs called bones

Question 3

What are long bones?

Answer 3

Bones of the extremities or arms and legs

Question 4

what is the long shaft of the bone called?

Answer 4

diaphysis

Question 5

The two extremities or end of the bones are called what

Answer 5

epiphysis

Question 6

where is the Medullary canal? What is it filled with?

Answer 6

It is a cavity in the diaphysis, and it is filled with yellow marrow

Question 7

What is yellow marrow made up of?

Answer 7

Fat cells

Question 8

what is the endosteum?

Answer 8

membrane that lines the medullary canal and keeps the yellow bone marrow intact.

Question 9

Where is red bone marrow found?

Answer 9

in certain bones, such as the vertebrae ribs, sternum and cranium, and in the proximal ends of the humerus and femur

Question 10

Red bone marrow produces what?

Answer 10

Red blood cells and white blood cells

Question 11

What is erythrocytes?

Answer 11

Red blood cells

Question 12

what are leukocytes

Answer 12

White blood cells

Question 13

what is the outside of the bone covered with?

Answer 13

A tough membrane called PERIOSTEUM

Question 14

what does the periosteum contain?

Answer 14

blood vessels, lymph vessels osteoblast, which are cells that form new bone tissue

Question 15

Periosteum is necessary for?

Answer 15

Bone growth, repair and nutrition

Question 16

The skull is composed of what bones

Answer 16

Cranial and facial

Question 17

when do fontanels turn into solid bone?

Answer 17

approx 18 months

Question 18

what does vertebrae do?

Answer 18

protect the spinal cord and provide support for head and trunk

Question 19

what are intervertebral disks?

Answer 19

Pads of Cartlidge tissue

Question 20

what do intervertebral disks do?

Answer 20

Separate the vertebra act, a shock, absorbers and allow bending and twisting

Question 21

The first three pairs of false ribs, attach where

Answer 21

To the cartilage of the rib above

Question 22

The last two pairs of false ribs are called what and why?

Answer 22

floating ribs because they have no attachment to the front of the body

Question 23

The last five pairs of ribs are called

Answer 23

false ribs

Question 24

The first seven pairs of ribs are called what and why?

Answer 24

True ribs because they attach directly to your sternum or breast bone on the front of the body

Question 25

where do your ribs attach to?

Answer 25

thoracic vertebrae on the dorsal surface of the body (dorsal back)

Question 26

how many individual ribs do we have?

Answer 26

24

Question 27

How many pairs of ribs do we have?

Answer 27

12

Question 28

How is the heel formed?

Answer 28

formed by the large tarsal bone called the CALCANEUS.

Question 29

what does the obturator foramen do?

Answer 29

allows for the passage of nerves and blood vessels to and from the legs