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ANNNNNAAtomy > A,B > Flashcards

A,B Flashcards

1
Q

What makes up the anterior wall of the axilla?

A

pec major and minor

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2
Q

What makes up the posterior wall of the axilla?

A

lat, teres major, subscapularis

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3
Q

What makes up the medial wall of the axilla?

A

serratus anterior

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4
Q

What makes up the lateral wall of the axilla?

A

intertubercular sulcus of humerus

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5
Q

What muscles are on the lateral wall of the axilla?

A

coracobrachialis, long and short head of the biceps

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6
Q

What does the axillary sheath (not the entire axilla) contain?

A

axillary a. and brachial plexus

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7
Q

What is the fascia of the anterior wall of the axilla (also fascia that surrounds pec minor)?`

A

clavipectoral fascia

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8
Q

What are the five major groups of lymph nodes in axilla?

A 
pectoral
subscapular
humeral
central 
apical
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9
Q

What receives lymph from all of the nodes of the axilla?

A

apical nodes

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10
Q

Where is the axillary sheath located?

A

medial aspect of arm

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11
Q

What is the branch of the first part of the axillary artery?

A

superior thoracic a.

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12
Q

What are the branches of the second part of the axillary a.?

A

thoracoacromial a.

lateral thoracic a.

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13
Q

What are the branches of the third part of the axillary a.?

A

subscapular a.
anterior circumflex humeral a.
posterior circumflex humeral a.

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14
Q

What are the roots of the brachial plexus?

A

ventral rami C5 - T1

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15
Q

What nerves emerge above their cervical vertebrae?

A

C1-C7 emerge above C1-C7 vertebrae

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16
Q

Where does C8 n. emerge?

A

below C7

17
Q

What makes up the ‘M’ of the brachial plexus?

A

musculocutaneous n.
median n.
ulnar n.

18
Q

What makes up the ‘Y’ of the brachial plexus?

A

axillary n.

radial n.

19
Q

What is the major nerve of the anterior arm, what is its origin, and what does it innervate?

A

musculocutaneous n.

C5-C7, from lateral cord

innervates coracobrachialis, bices, 1/2 of brachialis

20
Q

What is the major nerve of the anterior FOREarm, what is its origin, and what does it innervate?

A

median n.

C5-T1, from medial and lateral cords

innervates most of anterior forearm and some of hand

21
Q

What is the major nerve of the hand, what is its origin, and what does it innervate?

A

ulnar n.

C8-T1, from medial cord

innervates most of the hand, flexor carpii ulnaris and flexor digitorum (?) in forearm

22
Q

What is the origin of the axillary n. and what does it innervate?

A

C5-C6, from posterior cord

innervates deltoid and teres minor

23
Q

What is the major nerve of the posterior arm and forearm, what is its origin and what does it innervate?

A

Radial n.

C5-T1, from posterior cord

innervates all mm in posterior arm/forearm and 1/2 of brachialis

24
Q

Where is the best place to view the radial n.?

A

inferior border of the triangular interval

25
Q

Dorsal scapular n.: origin and innervation

A

C5, from root of C5

rhomboid and levator scapulae

26
Q

long thoracic n: origin and innervation

A

roots of C5, C6, C7

serratus anterior

27
Q

suprascapular n: origin and innervation

A

C5, C6; superior trunk

supraspinatus, infraspinatus

28
Q

lateral pectoral n: origin and innervation

A

C5, C6, C7; lateral cord

pec major

29
Q

medial pectoral n: origin and innervation

A

C8-T1; medial cord

pec major and minor

30
Q

upper subscapular n: origin and innervation

A

C5, C6; posterior cord

subscapularis

31
Q

thoracodorsal n: origin and innervation

A

C6, C7, C8; posterior cord

lat dorsi

32
Q

lower subscapular n: origin and innervation

A

C5, C6; posterior cord

subscapularis, teres major

33
Q

What are the lower plexus nerves and where do they originate?

A

upper subscapular n.
thoracodorsal n.
lower subscapular n.

originate from posterior cord

34
Q

nerve to subclavius

A

C5, C6; superior trunk

35
Q

medial brachial cutaneous n: origin and innervation

A

C8-T1; medial cord

sensory to medial arm

36
Q

medial antibrachial cutaneous n: origin and innervation

A

C8-T1; medial cord

sensory to medial forearm

ANNNNNAAtomy (13 decks)

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