The Body in Motion

Question 1

skeletal system- function

Answer 1

• support
• protection
• assist in movement
• manufacturing of blood cells
• storehouse for calcium and phosphorus

Question 2

joint actions- flexation

Answer 2

bending of knee or elbow

Question 3

joint actions- extension

Answer 3

straightening of the knee or elbow

Question 4

joint actions- abduction

Answer 4

lifting of the arm from the side

Question 5

joint actions- adduction

Answer 5

lowering of the arm to the side

Question 6

joint actions- circumduction

Answer 6

drawing a circle in the air with a straight arm

Question 7

joint actions- rotation

Answer 7

turning head

Question 8

joint actions- pronation

Answer 8

palm facing down

Question 9

joint actions- supination

Answer 9

palm facing up

Question 10

joint actions- eversion

Answer 10

twisting ankle out

Question 11

joint actions- inversion

Answer 11

twisting ankle in

Question 12

joint actions- dorsiflexion

Answer 12

raising toes upwards

Question 13

joint actions- plantar flexion

Answer 13

point toes down

Question 14

joint actions- elevation

Answer 14

shrugging shoulders up

Question 15

joint actions- depression

Answer 15

returning shoulders to the resting position after shrugging shoulders

Question 16

what are ligaments?

Answer 16

designed to maintain stability and restrain joint movement. they connect bones together using well-defined, fibrous bands.

Question 17

what are tendons?

Answer 17

they are tough, inelastic cords of tissue that connect muscle to bone.

Question 18

what is synovial fluid?

Answer 18

acts as a lubricant and forms a cushion.

Question 19

what is hyaline cartilage?

Answer 19

forms a cushion and absorbs shock.

Question 20

function of muscular system

Answer 20

-enables movement

Question 21

what is the origin of a muscle?

Answer 21

where it begins

Question 22

what is the insertion of a muscle

Answer 22

where it ends

Question 23

what is the antagonist muscle?

Answer 23

the muscle which relax

Question 24

what is the agonist muscle?

Answer 24

the muscle which contracts

Question 25

what is a concentric contraction?

Answer 25

the muscle contracts and shortens

Question 26

what is a eccentric contraction?

Answer 26

the muscle lengthens under tension.

Question 27

what is a isometric contraction?

Answer 27

the muscle contracts but the limb cant move because of apposing force.

Question 28

function of the respiratory system

Answer 28

to provide cells which resources necessary for their survival.

Question 29

what occurs during inspiration?

Answer 29

- air is drawn in - lungs expand - ribs move up and out - diaphragm contracts - intercostal muscle contract.

Question 30

what occurs during expiration?

Answer 30

- air is forced out - lungs relax - ribs move down and in - diaphragm relaxes - intercostal muscles relax

Question 31

how much oxygen is inhaled?

Answer 31

20.93%

Question 32

how much oxygen is exhaled?

Answer 32

16.4%

Question 33

how much CO2 is inhaled?

Answer 33

0.03%

Question 34

how much CO2 is exhaled?

Answer 34

4.1%

Question 35

how much nitrogen is inhaled?

Answer 35

79.04%

Question 36

how much nitrogen is exhaled?

Answer 36

79.5%

Question 37

how does oxygen travel from the capillaries to the alveolus?

Answer 37

diffusion. oxygen moves from the air in the lungs with high O2 levels to the capillaries in the alveoli which has low O2 levels.

Question 38

what is the function of circulatory system?

Answer 38

to supply cells with resources and transport blood around the body.

Question 39

how much plasma is in blood?

Answer 39

55% of blood is plasma

Question 40

what is the percentage of red blood cells in the blood?

Answer 40

45% of the blood consists of red blood cells

Question 41

what is the structure and function of the heart?

Answer 41

keeps the blood circulating throughout their body. the four chambers contract, forcing blood through the arteries and around the body.

Question 42

what is the structure and function of veins.

Answer 42

veins carry deoxygenated blood from the body back to the heart. they have a strong, muscular wall to withstand the high pressure caused by the contraction of the heart.