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Movement > Brachial plexus > Flashcards

Brachial plexus Flashcards

1
Q

What are the sections of the brachial plexus?

A
  • 5 roots (C5-T1)
  • 3 trunks (sup/mid/inf)
  • 6 divisions (3x ant, 3x post)
  • 3 cords (lat/post/med)
  • 5 terminal branches (musculocutaneous, median, axillary, radial, ulnar)
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2
Q

What roots make up the superior trunk?

A

C5 & C6

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3
Q

What root makes up the middle trunk?

A

C7

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4
Q

What roots make up the inferior trunk?

A

C8 & T1

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5
Q

What contributes to the dorsal scapular nerve?

A

C5

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6
Q

Which roots contribute to long thoracic nerve?

A

C5-7

wings of heaven

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7
Q

What contributes to the lateral pectoral nerve?

A

C5-7 (lat cord)

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8
Q

What contributes to the upper subscapular nerve?

A

C5 (post cord)

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9
Q

What contributes to the thoracodorsal nerve?

A

C6-8 (post cord)

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10
Q

What contributes to the lower subscapular nerve?

A

C6 (post cord)

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11
Q

What contributes to the suprascapular nerve?

A

C5 & C6 (sup trunk)

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12
Q

What contributes to the medial pectoral nerve?

A

C8 & T1 (med cord)

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13
Q

Which roots contribute to the musculocutaneous nerve?

A

C5-7

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14
Q

Which roots contribute to the median nerve?

A

C6-T1

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15
Q

Which roots contribute to the ulnar nerve?

A

C8 & T1

+C7 in some

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16
Q

Which roots contribute to the axillary nerve?

A

C5+6

17
Q

Which roots contribute to the radial nerve?

A

C5-T1

18
Q

What artery do the lat/med/post cords surround?

A

Axillary artery

19
Q

What structures are innervated by the musculocutaneous nerve?

A

Motor - all muscles in the anterior compartment of the arm

Sensory - skin on lateral side of forearm

20
Q

What structures are innervated by the axillary nerve?

A

Motor - deltoid, teres minor

Sensory - skin over upper lateral part of arm

21
Q

What structures are innervated by the median nerve?

A

Motor - all anterior forearm muscles (except FCU and med 1/2 flexor digitorum profundus), thenar muscles, & 2 lat lumbricals
Sensory - skin on palmer lat 3 1/2 digits

22
Q

What structures are innervated by the radial nerve?

A

Motor - all post arm and forearm muscles

Sensory - skin on post arm and forearm, and dorsal lat hand

23
Q

What structures are innervated by the ulnar nerve?

A

Motor - all intrinsic hand muscles (except thenar and lat 2 lumbricals), and FCU&flexor digitorum profundus in forearm
Sensory - skin on palmar&dorsal med 1 1/2 digits

Movement (12 decks)

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