Muscular System

Question 1

Epimysium

Answer 1

Outermost layer, surrounds entire muscle

Question 2

Perimysium

Answer 2

Separates and surrounds fascicles

Question 3

Endomysium

Answer 3

Surrounds each individual muscle fiber

Question 4

Sarcolemma

Answer 4

Muscle fiber membrane

Question 5

Myofibril

Answer 5

Individual parallel muscle fibers (

Question 6

Sarcoplasm

Answer 6

Inner material surrounding the myofibril

Question 7

Actin

Answer 7

Thin filaments

Question 8

Myosin

Answer 8

Thick filaments

Question 9

Fascicle

Answer 9

The muscle fibers that are arranged in bundles

Question 10

Skeletal muscle

Answer 10

fibers are multinucleated structures that compose the skeletal muscle

Question 11

Cardiac muscle

Answer 11

makes up the thick middle layer of the heart. (are only found in the heart
)

Question 12

Smooth muscles

Answer 12

muscle that shows no cross stripes under microscopic magnification. These can be found in hollow organs such as bladder, stomach, uterus,

Question 13

exicability

Answer 13

able to send electrical waves along the entire length

Question 14

elasticity

Answer 14

having the ability to recoil back to its original length

Question 15

extensibility

Answer 15

allows muscles to stretch or extend

Question 16

contractility

Answer 16

allow muscles to pull on its attachment and shorten

Question 17

subclavius

Answer 17

depression,stabilizes clavicle

Question 18

serratus anterior

Answer 18

scapula protracts ribs elevates,moves arms side to side

Question 19

trapezius

Answer 19

rotates inferiorly retracts elevates and depresses spine extends

Question 20

rhomboid major

Answer 20

retracts rotates inferiorly

Question 21

pectoralis major

Answer 21

flexion adduction medial rotation

Question 22

latissimus dorsi

Answer 22

humerus extension adduction and medial rotation scapula depression

Question 23

deltoid

Answer 23

abduction flexion extension medial and lateral rotation,arms lifts at shoulder

Question 24

supraspinatus

Answer 24

abduction,rotates the elbow outwards as during a tennis swing

Question 25

teres minor

Answer 25

assists the infraspinatus in rotating the elbow outwards

Question 26

biceps brachii

Answer 26

flexion supination,allows palm of hand to point toward body while flexing

Question 27

triceps brachii

Answer 27

extends forearm as during a punch

Question 28

pronator teres

Answer 28

turns hand palm down

Question 29

supinator

Answer 29

turns hands palm up

Question 30

iliacus

Answer 30

thigh flexion and lateral rotation torso flexion

Question 31

gluteus maximus

Answer 31

extension ,lowers the knee and moves the thigh back

Question 32

gluteus medius

Answer 32

abduction,opens the thigh as when doing a split

Question 33

gluteus minimus

Answer 33

abduction bring the thighs back together

Question 34

adductor longus

Answer 34

adduction,flexion ,raising the knee

Question 35

rectus femoris

Answer 35

tibia/fibula moving the lower leg out in front of the body as kicking

Question 36

biceps femoris

Answer 36

moves the back of the lower leg up and back towards the buttocks

Question 37

tibialis anterior

Answer 37

raises the sole of the foot off the ground as when preparing to foot tap

Question 38

extensor digitorum longus

Answer 38

raises the sole of the foot off the ground as when preparing to foot tap extends the toes

Question 39

extensor hallucis longus

Answer 39

extends the big toe

Question 40

gastrocnemius

Answer 40

moving the back lower leg up and back toward the buttocks

Question 41

soleus

Answer 41

lower the sole of the foot the ground as when the foot tapping or jumping

Question 42

tibialis posterior

Answer 42

plantar flexion of the foot at the ankle joint.

Question 43

flexor digitorum longus

Answer 43

bends the inside of the foot upward and flexes the toes

Question 44

flexor hallicis longus

Answer 44

flexes the big toe