A: Bones

Question 1

Epiphyseal plate

Answer 1

Growth plate during childhood.
Hyaline cartilage is present until growth stops. When bone fuses after growth has stopped, it is replaced by epiphyseal line.

Question 2

Medullar/marrow cavity

Answer 2

hollow cavity in centre of bone. Contains yellow marrow.

Question 3

Blood supply in bones?

Answer 3

Blood vessels enter nutrient foramen in diaphysis.

Question 4

Periosteum

Answer 4

Periosteum is the lining outside of the bone, continuous with articular cartilage.
Periosteum is firmly attached to the bone via perforating fibres.

Question 5

Endosteum

Answer 5

Endosteum is the lining within the bone.

Question 6

Function of trabeculae?

Answer 6

Trabeculae are aligned along stress lines so bone can withstand it.

Question 7

Osteoblast vs osteoclast?

Answer 7

Osteoblast = blood forming
Osteoclast = blood reabsorption

Question 8

Intramembranous ossification?

Answer 8

Sheet-like connective tissue is replaced by bone tissue

Question 9

Endochrondal ossification

Answer 9

Hyaline cartilage is replaced by bone tissue

Question 10

Where does bone deposition happen

Answer 10

Periosteal + Endosteal surfaces

Question 11

Stages of healing a fracture

Answer 11

1. Hematoma forms
2. Internal callus formed, made from fibrous tissue and cartilage
3. Cartilage is replaced by bone (endochondral ossification)
4. Trabeculae aligned to withstand stresses.

Question 12

Type of fracture

Answer 12

Compression fracture

Question 13

Type of fracture

Answer 13

Communited

Question 14

type of fracture

Answer 14

Spiral

Question 15

Type of fracture

Answer 15

Epiphyseal

Question 16

Type of fracture

Answer 16

Depression

Question 17

Type of fracture

Answer 17

Greenstick

Question 18

Osteoporosis

Answer 18

low bone mineral density/ mass. Bone reabsorption outpaces bone deposition.