Chapter 5: Connective Tissue

Question 0

Bone

Answer 0

-osteocytes in lacunae
[cytes= cells]
-matrix (calcium phosphate)
-supplied by bloodstream via central canal
*only found in vertebrates bc of exoskeletons

Question 1

Cartilage

Answer 1

-chondrocytes in lacunae (spaces)
-matrix (elastic + collagen fibers)
-supplied by diffusion
>hyaline
>elastic (bendable; ear)
>fibrocartilage (not as bendable)
>calcified

Question 2

Endochondral bone

Answer 2

• starts as cartilage: aka “replacement bone”
• fish, amphibians, reptiles -keep growing
• birds, mammals -stop growing

Question 3

Intramembranous bone

Answer 3

• forms directly as bone

- often dermal, often flat (ribs, skull bones)