Muscle Actions Flashcards by Alyssa Vranish

Q

Assists deltoid in abduction of humerus

A

Supraspinatous

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Q

External rotation at shoulder joint

A

Infraspinatus

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Q

Extend arm at shoulder and rotates arm externally

A

Teres minor

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Q

Internal rotation of the arm

A

Subscapularis

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Q

Abducts, flexes and rotates arm at shoulder joint

A

Deltoid

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Q

Moves scapula multi-directional

A

Trapezius

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Q

Elevates scapula and rotates downward

A

Levator scapula

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Q

Elevates and adducts scapula and rotates downward

A

Rhomboid major

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Q

Adducts and rotates arm medially at shoulder

A

Pectoralis major

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Q

Extends, adducts and rotates arm medially

A

Latissumus dorsi

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Q

Assists with adduction and rotation of arm medially

A

Teres major

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Q

Flexes shoulder and adducts arm at shoulder

A

Corcobrachialis

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Q

Flexes arm at should; flexes and supinates forearm at elbow

A

Bicep brachii

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Q

Flexes forearm at elbow joint

A

Brachioradialis

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Q

Extends arm at shoulder

A

Triceps brachii

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Q

Supinates forearm

A

Supinator

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Q

Pronates forearm

A

Pronator teres

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Q

Flex and abducts wrist

A

Flexor carpi radialis

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Q

Flex and adducts wrist

A

Flexor carpi ulnaris

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Q

Weakly flexes hand at wrist joint

A

Palmaris

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Q

Flexes hand at PIP

A

Flexor digitorum superficialis

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Q

Flexes phalanges at DIP

A

Flexor digitorum profundus

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Q

Extend and abducts hand at wrist joint

A

Extensor carpi radialis longus

Q

Extends and adducts hand at wrist joint

A

Extensor carpi ulnaris longus

Q

Extends hand at wrist joint

A

Extensor digitorum

Q

Flexes and rotates thigh laterally

A

Psoas major

Q

Flexes and rotates thigh laterally

A

Iliacus

Q

Extends and rotates thigh laterally/helps lock knee in extension

A

Gluteus Maximus

Q

Abducts and rotates thigh medially

A

Gluteus medius

Q

Adducts, rotates and flexes thigh at hip joint

A

Adductor longus

Q

Adducts, flexes, rotates and extends thigh

A

Adductor magnus

Q

External rotation of thigh laterally and abducts

A

Piriformis

Q

Flexes and adducts thigh

A

Pectineus

Q

Medial aspect strength of the knee

A

MCL

Q

Lateral strength of knee

A

LCL

Q

Prevents anterior sliding

A

ACL

Q

Stops posterior sliding

A

PCL

Q

Fibrocartilage disks

A

Menisci

Q

Flexes leg at knee/adducts medial rotation of leg

A

Gracilis

Q

Adducts femur

A

Adduct magnus/longus/Pectineus

Q

Extends knee and flexes hip

A

Rectus femoris

Q

Extends knee

A

Vastus lateralis, medialis and intermedius

Q

Flexes knee and weakly flexes hip

A

Sartorius

Q

Extends thigh at hip and flexes leg at the knee joint

A

Bicep femoris

Q

Extend thigh a hip and flexes left at the knee

A

Semitendiosis
Semimembranosis

Q

Extends from talus to fibia

A

ATFL
PTFL

Q

Extends from calcaneus to fibula

A

CFL

Q

Four ligaments fused into one at the medial ankle

A

Deltoid

Q

Dorsiflexes and inverts the foot

A

Tibialis anterior

Q

Dorsiflexes and extends foot and toes

A

Extensor digitorum longus

Q

Plantar flexes and everts the foot

A

Fibularis longus

Q

Plantar flexes foot and flexes leg at the knee

A

Gastrocnemius

Q

Plantar flexes the foot

A

Soleus

Q

Plantar flexes and inverts foot

A

Tibalis posterior

Q

Plantar flexes foot and flexes toes

A

Flexor digitorum longus