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Flashcards in Chapter 2 Deck (55)
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1

Forms the upright part of the body.

axial skeleton

2

Attaches to the axial skeleton and contains bones of the extremities.

appendicular skeleton

3

Total bones in the body?

206

4

Bone is made up of ____ organic material and ___ inorganic material

1/3, 2/3

5

Gives the bone its elasticity

organic material

6

Gives the bone hardness and strength

inorganic material

7

Makes up a hard, dense outer shell. Completely covers the bone, tends to be thick along the shaft and thin at the ends of long bones, thick in the plates of the flat bones of the skull

compact bone

8

Cancellous bone is also called...

trabeculae

9

Epiphysis

area at each end of a long bone

10

Epiphyseal plate

cartilaginous material in growing bone; longitudinal growth occurs here

11

Diaphysis

main shaft of the bone

12

Medullary canal

hollow; helps decrease weight of the bone. Contains marrow and provides passage for nutrient arteries.

13

Endosteum

lines the medullary canal, contains osteoclasts.

14

Osteoclasts

mainly responsible for bone resorption

15

Flared part at each end of the diaphysis

metaphysis

16

Contains nerve and blood vessels that are important in providing nourishment, promoting growth in diameter of immature bone, and repairing the bone.

periosteum

17

Attachment point for tendons and ligaments

periosteum

18

Two types of epiphyses found in children whose bones are still growing:

pressure epiphysis, traction epiphysis

19

Located at the end of long bones. Receives pressure from opposing bone making up that joint. This is where the growth of long bones occurs.

pressure epiphysis

20

Located where tendons attach to bones and are subjected to a pulling, or traction, force. Example: greater and lesser trochanters of the femur and tibial tuberosity

traction epiphysis

21

Largest bones in the body

long bones

22

Make up most of the appendicular skeleton

long bones

23

Tend to have more equal dimensions of height, length, and width giving them a cube shape.

Short bones

24

Bones of the wrist and ankle

Short bones

25

Bones that have a variety of mixed shapes

Irregular bones

26

Resemble the shape of sesame seeds, located where tendons cross the ends of long bones in the extremities

sesamoid bones

27

These bones develop within the tendon and protect it from excessive wear.

sesamoid bones

28

Broken, cracked bone

fracture

29

Condition characterized by loss of normal bone density or bone mass. Can weaken a bone to the point of fracture

osteoporosis

30

Infection of the bone usually caused by bacteria.

osteomyelitis