Skeletal

Question 1

calcium salts

Answer 1

an element required for bone formation

Question 2

red bone marrow

Answer 2

found in spongy bones, at ends of long bones, and center of other bones. Red bone marrow makes platelets and red blood cells (epiphysis, flat bones, sternum, cranial bones, vertebrae, pelvis)

Question 3

yellow bone marrow

Answer 3

composed of fat, found in central cavities of long bones

Question 4

weight bearing exercise

Answer 4

increases bone density by stimulating osteoblasts, which are cells that strengthen and build bones. Reduces risk of osteoporosis.

Question 5

sinus

Answer 5

Cavity or hollow space- paranasal cavity in skull

Question 6

Foramen

Answer 6

hole that allows vessel or nerve to pas through or between bones.

Question 7

Foramen Magnum

Answer 7

Large opening in the skull’s occipital bone through which the spinal cord passes to join the brain

Question 8

greater/lesser trochanter

Answer 8

Greater trochanter is a lateral projection near head of femur, lesser trochanter found on medial side of femur

Question 9

Acromion Process

Answer 9

It joins the clavicles and is an important landmark for giving injection in deltoid

Question 10

Osteoblasts

Answer 10

build bone tissue

Question 11

Parietal bones (2)

Answer 11

form top and side of cranium

Question 12

5 functions of skeletal system

Answer 12

sturdy framework for entire body, protects delicate structures like spinal cord and brain, levers that attach to bones to create movement, stores calcium salts that can be reabsorbed into the blood when the body needs calcium, produces blood cells

Question 13

Human skeleton made of

Answer 13

206 bones

Question 14

Fontanels

Answer 14

membranous area in infant skull where bone has not formed yet, “soft spot”

Question 15

Diarthroses

Answer 15

freely moveable, synovial - shoulders, kneecaps

Question 16

Curvatures

Answer 16

Scoliosis - lateral curvature of the vertebral column
Lordosis - excessive lumbar curve
Kyphosis - exaggeration of thoracic curve

Question 17

epiphyseal plate

Answer 17

During birth, secondary bone growing centers grow, it is made of hyaline cartilage and eventually is replaced with bone which becomes epiphyseal line. It is not freely moving

Question 18

osteoclasts

Answer 18

breaks down bone

Question 19

parathyroid hormone

Answer 19

raises blood calcium levels by causing calcium release from bones

Question 20

fossa

Answer 20

Depression on a bone surface.

Question 21

amphiarthrotic joints

Answer 21

slightly moveable, cartilaginous - ribs, vertebrae

Question 22

synarthrosis

Answer 22

no movement, fibrous, sutures - of the skull

Question 23

curves develop

Answer 23

cervical - head held up, lumbar - walking started

Question 24

meatus

Answer 24

short channel or passageway, external opening of canal. Channel in skull that leads to inner ear.