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first term anatomy > muscles and nerves > Flashcards

muscles and nerves Flashcards

1
Q

what are the skeletal muscles of the thorax?

A

pectoralis minor
pectoralis major
serratus anterior
intercostals

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2
Q

what are the skeletal muscles in the abdomen?

A

rectus abdominus
external oblique
internal oblique
transversus abdominus

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3
Q

what are the superficial skeletal muscles of the back?

A 
latissimus dorsae
trapezius
deltoid
levator scapulae
supraspinatus
infraspinatus
teres major
teres minor
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4
Q

what are the deep muscles in the back?

A

erector spinae

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5
Q

what two compartments are there in the upper limb?

A

anterior and posterior

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6
Q

what separates the compartments in the upper limb?

A

intermuscular septum

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7
Q

what action does the anterior compartment of the arm have on the arm?

A

flexion

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8
Q

what action does the posterior compartment of the arm have on the arm?

A

extension

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9
Q

how many heads do the biceps have?

A

2

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10
Q

how many heads do the triceps have?

A

3

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11
Q

what action other than flexion does the anterior compartment of the forearm have on the forearm?

A

pronation

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12
Q

what action other than extension does the posterior compartment of the forearm have on the forearm

A

supination

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13
Q

what is responsible for the nerve supply to the upper limb?

A

brachial plexus

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14
Q

how many muscle compartments are there in the lower limbs?

A

3

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15
Q

what are the actions of the 3 compartments of the lower limbs on the lower limbs above the knee?

A

posterior - flexors
anterior - extensors
medial - adductors

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16
Q

what are the actions of the three compartments of the lower limb on the lower limbs below the knee?

A

anterior - dorsiflexion
posterior - plantarflexion and inversion of the foot
lateral - eversion of the foot

17
Q

what nerves supply which compartments of the lower limbs?

A

femoral nerve - anterior
sciatic nerve - posterior
obturator - medial

18
Q

what supplies the nerves of the lower limb?

A

lumbosacral plexus

19
Q

what are some histological features of skeletal muscle?

A

multinucleate (nuclei peripherally located)
striations
can sometimes see the NMJ

20
Q

what are some histological features of smooth muscle?

A

no striations
shorter fibre length than skeletal muscle
centrally situated “cigar shaped” nuclei

21
Q

what are some histological features of cardiac muscle?

A

mononucleate
region where ends of cells are connected to another cell are called intercalated discs
intercalated disc contains gap junctions

22
Q

what do dorsal rami supply?

A

erector spinae

23
Q

what do ventral rami supply?

A

everything except erector spinae

24
Q 
what are the dermatomes of the:
sternomanubrial joint
skin over the nipples
skin over the umbilicus
skin over the groin region

first term anatomy (4 decks)

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