muscular system

Question 1

skeletal muscle

Answer 1

fibers are multinucleated structure that compose the skeletal muscle

Question 2

cardiac muscle

Answer 2

are only found in the heart

Question 3

smooth muscle

Answer 3

are called so because they do not have striations. These can be found in hollow organs such as bladder, stomach, uterus, intestines, and passageways of circulatory system

Question 4

excitability

Answer 4

able to send electrical waves along the entire length

Question 5

elasticity

Answer 5

having the ability to recoil back to its original length

Question 6

extensibility

Answer 6

allows muscles to stretch and extend

Question 7

contractility

Answer 7

allows muscles to pull on its attachment and shorten

Question 8

Fascicle

Answer 8

the muscle fibers that are arranged in bundles

Question 9

epimysium

Answer 9

outermost layer, surrounds entire muscles

Question 10

perimysium

Answer 10

separates and surrounds fascicles

Question 11

endomysium

Answer 11

surrounds each individual muscle fiber

Question 12

sarcolemma

Answer 12

muscle fiber membrane

Question 13

myofibril

Answer 13

individual parallel muscle fiber

Question 14

sarcoplasm

Answer 14

inner material surrounding the myofibril

Question 15

Actin

Answer 15

thin filaments

Question 16

Myosin

Answer 16

thick filaments

Question 17

subclavius

Answer 17

stabilizes clavicle during movement by depressing it, depression

Question 18

serratus anterior

Answer 18

moves arm from side of body to front of body, assists with inhalation, scapula; protracts; ribs

Question 19

trapezius

Answer 19

elevates shoulders, scapula: rotates inferiorly

Question 20

rhomboid major

Answer 20

stabilizes scapula during pectoral girdle movement, retracts; rotates inferiorly

Question 21

pectoralis major

Answer 21

brings elbows together; moves elbow up; flexion; adduction; medial rotation

Question 22

latissimus dorsi

Answer 22

moves elbow back; humerus; extension; adduction

Question 23

deltoid

Answer 23

lift arms at the shoulder; abduction; flexion

Question 24

supraspinatus

Answer 24

rotates the elbow outwards, as tennis swing, abduction

Question 25

teres major

Answer 25

assists the infraspinatus in rotating the elbow outwards, extension; adduction

Question 26

biceps brachii

Answer 26

performs a bicep’ also allows palm of hand to point toward body while flexing, flexion, supination

Question 27

triceps brachili

Answer 27

extends forearm, as during a punch, extension

Question 28

pronator teres

Answer 28

turns hand palm down, pronation

Question 29

supinator

Answer 29

turns palms up, supination

Question 30

iliacus

Answer 30

raises knee at hip, thigh: flexion and lateral rotation, torso: flexion

Question 31

gluteous maximus

Answer 31

lowers knee and moves thigh back, extension

Question 32

gluteus medius

Answer 32

opens the thigh, abduction

Question 33

gluteus minimus

Answer 33

brings thigh back together, abduction

Question 34

adductor longus

Answer 34

brings the thighs back together

Question 35

rectus femoris

Answer 35

moves the lower lef out in front of the bidy, tibula/fibula; extension, thigh: flexion

Question 36

biceps femoris

Answer 36

moves the back of the lower leg up and back, tibula/fibula: flexion, Thigh: extension, mediala rotation

Question 37

tibalis anterior

Answer 37

raises the sole of the foot off the ground when preparing for foot tap, dorsiflexion, inversion

Question 38

extensor hallucis longus

Answer 38

raises the sole of the foot off the ground, extends big toe, foot: dorsiflexion, toe: extension

Question 39

extensor digitorum longus

Answer 39

raises the sole of the foot off the ground, extends the toes, foot: dorsiflexion, toes: extension

Question 40

gastrocnemius

Answer 40

lowers sole of foot on the ground, foot: plantar flexion, tibia/fibula: flexion

Question 41

soleus

Answer 41

lowers the sole of the foot on the ground, maintains posture, plantar flexion

Question 42

tibial posterior

Answer 42

lowers the sole of the foot, plantar flexion

Question 43

flexor digitorum longus

Answer 43

lowers the sole of the foot and bends inside of foot and flexes toes, plantar flexion, inversion, flexion

Question 44

flexor hallicis longus

Answer 44

flexes big toe, flexion, plantar flexion