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

A

extension

Q

gluteus medius and minimus have what action on the hip joint

A

abduction

Q

muscles of the thigh

A

hanstrings
quadriceps
adductors

Q

posterior muscle compartment of thigh

A

hamstring

Q

what nerve supplies the hamstrings

A

sciatic nerve

Q

anterior muscle compartment of the thigh

A

quadriceps

Q

what nerve supplies the quadriceps

A

femoral nerve

Q

medial muscle compartment of the thigh

A

adductors

Q

what nerve supplies the adductors

A

obturator nerve

Q

the anterior leg causes what action on the foot

A

dorsiflexion

Q

the posterior leg causes what action on the foot

A

plantar flexion

Q

the lateral leg causes what action on the foot

A

eversion and inversion

Q

muscles of the hand and foot are described as

A

intrinsic

Q

functions of intrinsic hand muscles

A

precision

Q

functions of intrinsic foot muscles

A

support walking and maintaining arches