Bones And Fractures

Question 1

2 main part of bone?

Answer 1

Outer cortex and inner medulla

Question 2

What are some characteristics of the outer cortex?

Answer 2

Dense, strong, heavy, compact

Question 3

What are some characteristics of the inner medulla?

Answer 3

Porous, weak, light, spongy

Question 4

Where in the bone is the bone marrow found?

Answer 4

Inner medulla

Question 5

What covers bones?

Answer 5

Periosteum+ lots of blood vessels and nerves

Question 6

What happens when bones grow?

Answer 6

Hyaline cartilage in laid down first then ossifies (endochondral ossification)–> bone then grows

Question 7

Name the 4 parts of a bone?

Answer 7

Epiphysis (ends), epiphyseal growth plate, metaphysis and diaphysis (main shaft)

Question 8

Name the classes of bones (5)

Answer 8

Flat bones (protective e.g. sternum)
Long bones (tubular e.g. humerus)
Irregular bones (weird shapes e.g. scapula)
Sesamoid bones (with tendons e.g. patella)
Short bones (cuboidal e.g. carpals and tarsals)

Question 9

What is the initial healing step for a fracture?

Answer 9

Callus of new bone around fracture line

Question 10

Second stage of fracture healing?

Answer 10

Callus remodelling

Question 11

What bones make up the axial skeleton?

Answer 11

Skull, neck and trunk bones

Question 12

What bones make up the appendicular skeleton?

Answer 12

Pectoral girdle, upper limb, pelvic girdle and lower limb