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Flashcards in Skeletal System Deck (25):
1

What is the function of osteoblasts in bone remodeling?

Build up bone or deposite bone

2

What is a bone fracture?

Cracks or breaks in bone

3

6 types of bone fractures

Oblique, green stick, transverse, compounded, spiral, comminuted

4

Oblique

One diagonal fracture

5

Comminuted

Shattered

6

Spiral

Fracture spirals around the bone

7

Compounded

Bone sticks out of skin

8

Green stick

Incomplete

9

Transverse

Both bones cracked

10

4 steps to repairing a fracture

1)extensive bleeding- hematoma clot
2) spongy callus forms inside - cartilage callus on outside
3) cartilage on callus ossifies and becomes bone
4) external callus is removed over time (bone remodeling)

11

Wolff's law

States bone will become stronger and thicker over time to resist forces placed on them

12

What defines a long bone?

Bones that are longer than they are wide

13

Example of a long bone

Femur

14

Alternate name for articular cartilage

Hyaline cartilage

15

Difference between red marrow and yellow marrow

Yellow - fatty, lipids
Red - made of red and white blood cells

16

Function of periosteum

Life support sheath, provides nutrient blood for bone cells and a source of osteogenitor cells throughout life

17

Epiphysis

Larger parts at the end of the bone

18

Diaphysis

Skinnier long part in the middle of bone

19

Articular cartilage

Covering on the ends of the bones

20

Nutrient artery

Artery in the middle of the bone

21

Compact

Inside hard layer of bone

22

Spongy bone

Spongy looking part inside bone at the ends

23

Advantages of spongy bone

Light, flexible, space for blood

24

Two bone diseases

Achondroplasia
Rickets

25

What is the role of osteoclasts in bone remodeling?

Dissolve bone or bone- resorbing