Muscular system

Question 1

Myosin

Answer 1

Thick filaments

Question 2

Actin

Answer 2

Thin filaments

Question 3

Sarcoplasm

Answer 3

Inner material surrounding the myofibril (equivalent to the cell’s cytoplasm)

Question 4

Myofibril

Answer 4

Individual parallel muscle fibers (made up of actin and myosin)

Question 5

sarcolemma

Answer 5

muscle fibers membrane

Question 6

Endomysium

Answer 6

surrounds each individual muscle fiber

Question 7

Perimysium

Answer 7

separates and surrounds entire muscle

Question 8

Epimysium

Answer 8

Outermost layer, surrounds entire muscle

Question 9

Fascicle

Answer 9

The muscle fibers that are arranged in bundles

Question 10

Excitability

Answer 10

Able to send electrical waves (action potential) along the entire length

Question 11

elasticity

Answer 11

Having the ability to recoil back to its original length

Question 12

extensibility

Answer 12

Allows muscles to stretch or extend

Question 13

contractility

Answer 13

Allows muscles to pull on its attachment and shorten

Question 14

Skeletal Muscle (voluntary)

Answer 14

Skeletal muscle fibers are multinucleated structures that compose the skeletal muscle.

Question 15

Cardiac Muscle (involuntary)

Answer 15

Cardiac muscle are only found in the heart

Question 16

Smooth Muscle (involuntary)

Answer 16

These can be found in hollow organs such as bladder, stomach, uterus, intestines, and passageways of circulatory system.

Question 17

Subclavius

Answer 17

Depression

Question 18

Serratus anterior

Answer 18

Scapula: protracts; ribs ;elevates

Question 19

trapezius

Answer 19

scapula; rotates inferiorly and depresses; spine extends

Question 20

Rhomboid major

Answer 20

Retracts; rotates inferiorly

Question 21

Pectorals major

Answer 21

flexion; adduction; medial rotation

Question 22

latissimus dorsi

Answer 22

humerus ;extension, adduction, and medial rotation

Question 23

deltoid

Answer 23

abduction; flexion; extension; medial and lateral rotation

Question 24

supraspinatus

Answer 24

medial rotation

Question 25

teres major

Answer 25

extension; adduction

Question 26

biceps brachii

Answer 26

flexion; supination

Question 27

triceps brachii

Answer 27

extension

Question 28

pronator teres

Answer 28

pronation

Question 29

supinator

Answer 29

supination

Question 30

ilicus

Answer 30

thigh; flexion and lateral rotation; torso: flexion

Question 31

gluteous maximus

Answer 31

extension, lowers knees and moves the thigh like getting ready to kick ball

Question 32

gluteus medius

Answer 32

abduction, opens thigh as when doing a split

Question 33

gluteus minimus

Answer 33

abduction, brings thighs back together

Question 34

adductor longus

Answer 34

adduction ; flexion, brings the thighs back together

Question 35

rectus femoris

Answer 35

tibia/fibula; flexion; thigh; extension, moves lower leg out in front of the body

Question 36

biceps femoris

Answer 36

tibia/fibula; flexion; thigh; extension, lateral rotation

Question 37

tibialis anterior

Answer 37

dorsiflexion; inversion

Question 38

extensor hallucis longus

Answer 38

foot: dorsiflexion; toes; extension, extends big toe

Question 39

extensor digitorum longus

Answer 39

foot: dorsiflexion; toes; extension, extends toes

Question 40

gastrocnemius

Answer 40

foot; plantar flexion;tibia/fibula flexion

Question 41

soleus

Answer 41

plantar flexion

Question 42

tibialis posterior

Answer 42

lowers the sole of the foot to the ground

Question 43

flexor digitorum longus

Answer 43

lowers the sole of the foot to the ground, as foot tapping

Question 44

flexor hallicis longus

Answer 44

big toe; flexion; foot; plantar flexion, flexes big toe