muscular skeletal system

Question 1

bones at joints

Answer 1

shoulder- scapula, humerus 
hip- pelvis, femur
knee- femur, tibia 
elbow- radius, humerus 
ankle- tibia, fibula, talus

Question 2

flexion

Answer 2

decreasing the angle at the joint

Question 3

extension

Answer 3

increasing the angle at the joint

Question 4

abduction

Answer 4

moving a limb away from the midline of the body

Question 5

adduction

Answer 5

moving a limb towards the midline of the body

Question 6

horizontal abduction

Answer 6

moving a limb away from the midline of the body at a 90° angle

Question 7

horizontal adduction

Answer 7

moving a limb towards the midline of the body at a 90° angle

Question 8

doris flexion

Answer 8

decreasing the angle at the ankle joint

Question 9

plantar flexion

Answer 9

increasing the angle at the ankle joint

Question 10

sagittal plane

Answer 10

divides the body into left and right parts

Question 11

transverse planes

Answer 11

divides body into superior and inferior parts (top and bottom)

Question 12

frontal plane

Answer 12

divides body into anterior and posterior parts (front and back)

Question 13

transverse axis

Answer 13

runs from side to side across the body

Question 14

longitudinal axis

Answer 14

runs from top to bottom

Question 15

sagittal axis

Answer 15

runs from front to back

Question 16

plane and axis pairs

Answer 16

sagittal plane, transverse axis
transverse plane, longitudinal axis
frontal plane, sagittal axis

Question 17

the agonist

Answer 17

the contracting muscle which shortens.

Question 18

the antagonist

Answer 18

the relaxing muscle, works in opposition.

Question 19

the origin

Answer 19

the tendon that attaches the muscle to stationary bone.

Question 20

the insertion

Answer 20

the tendon that attaches to the moving bone.

Question 21

isometric contraction

Answer 21

where the muscle contracts and stays the same length when the activity is being carried out.

Question 22

isotonic contractions

Answer 22

a muscular contraction where movement occurs and the agonist muscle changes length.

Question 23

concentric contraction

Answer 23

this is where the muscle shortens when performing an action.

Question 24

eccentric contraction

Answer 24

where the muscle lengthens under tension, against gravity, acting as a brake NOT relaxing.