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Esmeralda Achutigui(3B) > Muscular System > Flashcards

Muscular System Flashcards

1
Q

Skeletal Muscle

A

Voluntary

fibers are multinucleated structures that compose the skeletal muscle.

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2
Q

Cardiac Muscle

A

Involuntary

Heart

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3
Q

Smooth Muscle

A

Involuntary
smooth muscles 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

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4
Q

Exicability

A

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

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5
Q

Elasticity

A

Having the ability to recoil back to its original length

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6
Q

Extensibility

A

Allows muscles to stretch or extend

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7
Q

Contractility

A

Allows muscles to pull on its attachment and shorten

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8
Q

Fascicle

A

The muscle fibers that are arranged in bundles

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9
Q

Epimysium

A

Outermost layer, surrounds entire muscle

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10
Q

Perimysium

A

Separates and surrounds fascicles

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11
Q

Endomysium

A

Surrounds each individual muscle fiber

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12
Q

Sarcolemma

A

Muscle fiber membrane

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13
Q

Myofibril

A

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

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14
Q

Sarcoplasm

A

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

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15
Q

Actin

A

Thin filaments

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16
Q

Myosin

A

Thick filaments

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17
Q

Subclavius

A

Stabilizes clavicle during movement by depressing it

Motion direction: depression

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18
Q

Serratus anterior

A 
Moves arm from side of body to front body; assists with inhalation 
Scapula;
protracts;
ribs;
elevates
19
Q

Trapezius

A

Elevates shoulders pulls shoulder blades together tilts head backwards
Scapula, rotates inferiorly, retracts, elevates and depresses, spine, extends

20
Q

Rhomboid major

A

Stabilizes scapula during pectoral girdle movement

Retracts, rotates inferiorly

21
Q

Pectoralis major

A

Bring elbows together, moves elbow up

Flexion, adduction, medial rotation

22
Q

Latissimus dorsi

A

moves elbow back

Humerus, extension, adduction, and medial rotation, scapula, depression

23
Q

Deltoid

A

Lifts arms at the shoulder

Abduction, flexion, extension, medial and lateral rotation

24
Q

Supraspinatus

A

Rotates the elbows outwards as during a tennis swing

Abduction

25
Q

teres major

A

Assists the infraspinatus in rotating the elbow outwards

Extension, adduction

26
Q

Biceps brachii

A

Performs a bicep curl, also allows palm of hand to point toward body while flexing
Flexion
Supination

27
Q

Triceps brachii

A

Extends forearm as during a punch

Extension

28
Q

Pronator Teres

A

Turns hand palm-down

Pronation

29
Q

Supinator

A

Turns hand palm-up

Supination

30
Q

Iliacus

A

Raises the knee at the

Thigh, flexion and lateral rotation

31
Q

Gluteous maximus

A

Lowers the knee and moves the thigh back

extension

32
Q

Gluteus medius

A

opens the thighs

abduction

33
Q

Gluteus minimus

A

brings the thighs back together

abduction

34
Q

adductor longus

A

brings the thighs back together

adduction, flexion

35
Q

Rectus femoris

A

Moves the lower leg out in front of the body

tibia/fibula, extension

36
Q

Biceps femoris

A

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

37
Q

Tibialis anterior

A

Raises the sole of the foot off the ground

dorsiflexoin, inversion

38
Q

extensor hallucis Longus

A

Raises the sole of the foot off the ground

foot, dorsfifexion, etension

39
Q

Gastrocnemius

A

lowers the sole of the foot to the ground

foot, plantar flexion, tibia/fibula

40
Q

soleus

A

lowers the sole of the foot the ground

plantar. flexion

41
Q

Tibialis posterior

A

Lowers the sole of the foot to the ground

plantar flexion

42
Q

flexor digitorum longus

A

lowers the sole of the foot to the ground

foot, plantar fiextion

43
Q

flexor hallicis longus

A

Flexes the big toe

flexion, and iversion, toes

44
Q

extensor digtorum longus

A

raises the sole of the foot off the ground

Foot, dorifexion, extension

Esmeralda Achutigui(3B) (15 decks)

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