HISTOLOGY - ID Bone/Cartilage

Question 1

What tissue is this and what is it showing

Answer 1

A - perichondrium

B - Lacunae

C - Chondrocytes

Question 2

Answer 2

A - chondrocytes

B- matrix

Question 3

Answer 3

A - elastic fibers

B - chondrocyte

Question 4

Answer 4

Dense regular connective tissue

Question 5

Answer 5

Dense irregular CT

Question 6

Answer 6

Loose CT

Question 7

ID these cell types and why they are what they are

Answer 7

B - Osteoblast - note that it’s located along the edges of bone and/or near the matrix, near the the periosteum of endosteum

C - Osteocytes - note that osteocytes are typically centrally located, embedded in lacunae and extend spider-like processes into canaliculi (small channel/duct)

A - Osteoclasts - located along edges of bone for digestion and remodling of the bone – large because multinucleated

Question 8

What bones types are these

Answer 8

Left = immature bone (woven)

Right = mature bone (lamellar)

Question 9

Answer 9

Osteon with concentric lamellae (L), central core (cc) and osteocytes (O)

Question 10

What tissue is this and and what are it’s labeled components?

Answer 10

Proximal end of long bone

a) bone
b) marrow
c) epiphyseal plate
d) bone
e) articular cartilage

Question 11

What tissue is this?

Answer 11

Cartilage in the initial skeleton of the foot

Question 12

Answer 12

E -extenson tendon

M - middle phalanx

Cp - Fibrous capsule

C- Hyaline cartilage

S - synovium

T - terminal phalanx

Question 13

Answer 13

JC - fibrous capsule

S - synovium

P - periosteum

C - compact bone

AC - articular cartilage

Question 14

Answer 14

Articular cartilage