functional anatomy of major muscle groups Flashcards by Katie Cornfield

Q

arm muscle compartments

A

flexors
extensors

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Q

flexors of the anterior arm

A

biceps brachii
brachialis
coracobrachialis

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Q

nerve supplying flexors of the anterior arm

A

musculocutaneous nerve

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Q

extensors of the posterior arm

A

triceps brachii

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Q

nerve supplying extensors of the posterior arm

A

radial nerve

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Q

agonist

A

prime mover/contracts
e.g biceps

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Q

antagonist

A

relaxes
e.g triceps

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Q

fixator

A

stabiliser
e.g deltoid

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Q

synergist

A

augment action of the agonist
e.g brachialis

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Q

flexor and pronators of anterior forearm

A

8 muscles

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Q

nerve supplying flexors of anterior forearm

A

median and ulnar nerve

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Q

extensors and supinators of posterior forearm

A

10 muscles

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Q

nerve supplying extensors of the posterior forearm

A

radial nerve

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Q

brachioradialis of posterior forearm

A

allow flexion of forearm

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Q

gluteal muscles have what action

A

actions on hip joint

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Q

gluteus maximus have what action on the hip joint

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A

extension

Q

gluteus medius and minimus have what action on the hip joint

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A

abduction

Q

muscles of the thigh

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A

hanstrings
quadriceps
adductors

Q

posterior muscle compartment of thigh

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A

hamstring

Q

what nerve supplies the hamstrings

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A

sciatic nerve

Q

anterior muscle compartment of the thigh

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A

quadriceps

Q

what nerve supplies the quadriceps

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A

femoral nerve

Q

medial muscle compartment of the thigh

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A

adductors

Q

what nerve supplies the adductors

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A

obturator nerve

the anterior leg causes what action on the foot

dorsiflexion

the posterior leg causes what action on the foot

plantar flexion

the lateral leg causes what action on the foot

eversion and inversion

muscles of the hand and foot are described as

intrinsic

functions of intrinsic hand muscles

precision

functions of intrinsic foot muscles

support walking and maintaining arches