Science Ch.21.2

Question 1

Bone Marrow

Answer 1

Soft connective tissue that produces blood cells. It is found inside the pores of spongy bone.

Question 2

Bone Matrix

Answer 2

the basic structure of bones

Question 3

compact bone

Answer 3

makes up the dense outer layer of bone. It is very hard and strong.

Question 4

joint

Answer 4

a place where two or more bone skeleton meet.

Question 5

ligament

Answer 5

this is a band of fibrous connective tissue that holds bones together and keeps them in place.

Question 6

ossification

Answer 6

a process in which mineral deposits replace cartilage

Question 7

osteoblast

Answer 7

make new bone cells and seacreat collagen that mineralizes to become bone matrix. They are responsible for bone growth and the uptake of minerals from the blood.

Question 8

Osteocytes

Answer 8

regulate mineral homeostasis. They direct the uptake of minerals from the blood and the release of minerals back into the blood as needed

Question 9

Osteoclasts

Answer 9

dissolve minerals in bone matrix and release them back into the blood.

Question 10

periosteum

Answer 10

this is a tough fibrous membrane that covers and protects the outer surface of bone.

Question 11

skeletal system

Answer 11

consists of all the bones of the body

Question 12

spongy bone

Answer 12

is found inside bones and is lighter and less dense than compact bones. This is because it is porous.