skeletal system

Question 1

flexion

Answer 1

bending a joint

Question 2

extension

Answer 2

straightening a joint

Question 3

plantar flexion

Answer 3

pointing toes down

Question 4

dorsiflexion

Answer 4

bending the foot towards the leg

Question 5

abduction

Answer 5

moving away from the bodys midline

Question 6

adduction

Answer 6

moving towards the bodys midline

Question 7

inversion

Answer 7

turning the sole of the foot inward

Question 8

Eversion

Answer 8

turning the sole
of the foot
outward

Question 9

Supination

Answer 9

turning the hand
so the palm faces
upward

Question 10

Pronation

Answer 10

turning the hand
so the palm faces
downward

Question 11

Protraction

Answer 11

moving a body

part forward

Question 12

Retraction

Answer 12

drawing a body

part backward

Question 13

Circumduction

Answer 13

circular

movement

Question 14

Rotation

Answer 14

when a bone “spins”

on its axis

Question 15

Elevation

Answer 15

movement of a body part upward

in a frontal plane

Question 16

Depression

Answer 16

movement of a body part

downward in a frontal plane

Question 17

Opposition

Answer 17

movement of the thumb to

touch each finger

Question 18

pivot joints

Answer 18

allow rotation

Ex: neck and forearm

Question 19

Ball and socket joints

Answer 19

◦ Allow all types of movement, including
rotation
Ex: shoulder and hip

Question 20

Hinge joints

Answer 20

Allow opening and closing movements

◦ Ex: elbows and knees

Question 21

Gliding joints

Answer 21

◦ Allow flat plate-like bones to slide
back and forth
◦ Ex: wrists and ankles

Question 22

Saddle joints

Answer 22

◦ Allow rocking movements in up-
and-down and side-to-side

directions
◦ Ex: base of thumb

Question 23

Arthritis

Answer 23

Inflammation of the joints

Question 24

◦ Osteoarthritis

Answer 24

joint “wears out”

Question 25

Rheumatoid Arthritis

Answer 25

autoimmune

disease

Question 26

Septic Arthritis

Answer 26

an infection in a

joint

Question 27

sprain

Answer 27

Injury to the ligaments in a joint

Question 28

mild, no tear

Answer 28

rest, ice elevate

Question 29

Partially torn, bruising,

Answer 29

more pain

Question 30

Torn

Answer 30

severe pain

Question 31

5 major bone functions

Answer 31

structure and support.
2. protects the internal
organs.
3. Provides a place for
muscles to attach
4. Red blood cells are made
inside bones in tissue
called marrow.
5. stores compounds such as
calcium and phosphorus.

Question 32

Epiphyses

Answer 32

(ends of long
bones) are covered with
articular cartilage and
articulate (forms a joint)
with other bones.

Question 33

Diaphysis

Answer 33

middle of bone

or shaft of bone

Question 34

Endosteum:

Answer 34

lines the

medullary canal

Question 35

Medullary Canal:

Answer 35

cavity of long bone
Filled with yellow
bone marrow that
functions as a storage
center for fat.

Question 36

Compact Bone

Answer 36

Hard & compact
Found along the
medullary canal
Gives long bone
strength

Question 37

Spongy Bone

Answer 37

Formed when hard
bone dissolves
away
 Lightweight and
located towards the
end of long bone.
 Found in areas
where less strength
are needed

Question 38

Red Marrow

Answer 38

Produced in the spongy
ends of boneArea where
hematopoiesis (formation
of blood cells) takes
place
 Functions in the
formation of Erythrocytes
(RBC), leukocytes
(WBC), & platelets

Question 39

Yellow marrow

Answer 39

stores fat.
With age, it replaces much of the red
marrow that occupies the cavities of
most bones.
Can become red marrow if the body
needs blood.

Question 40

Red marrow

Answer 40

Red marrow produces red blood cells

(erythrocytes) , white blood cells(leukocytes), and blood platelets
(thrombocytes) .

Question 41

Osteoprosis

Answer 41

Decreased bone mass that can be
due to
◦Aging
◦Decreased mobility

◦ Estrogen deficient or post-
menopausal women