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Anatomy 1 Final > Gross - Axilla and Brachial Plexus > Flashcards

Gross - Axilla and Brachial Plexus Flashcards

1
Q

Pyramidal shaped region between the arm and chest

A

Axilla

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2
Q

Anterior wall of the axilla

A

Pec. major and minor mm.

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3
Q

Posterior wall of the axilla

A

Latissimus dorsi, Teres major and Subscapularis mm.

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4
Q

Medial wall of the axilla

A

Serratus anterior m.

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5
Q

Lateral wall of the axilla

A

Intertubercular sulcus of the humerus

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6
Q

Base of the axilla

A

Skin and fascia of the arm pit

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7
Q

The axillary artery and brachial plexus runs through this part of the axilla

A

Axillary sheath

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8
Q

Lymphatics form the base of the axilla

A

Pectoral, subscapular and humeral

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9
Q

The pectoral, humoral and subscapular lymphatics drain to here

A

Central lymph nodes

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10
Q

The central lymph node drains to here

A

Apical lymph nodes

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11
Q

Lymph nodes that drain the anterior thoracic wall and most of the breast

A

Pectoral

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12
Q

Lymph nodes that drain the posterior thoracic wall and the scapular region

A

Subscapular

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13
Q

Lymph nodes that drain most of the upper limb

A

Humeral

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14
Q

Most of the body’s lymph nodes drain to here

A

Thoracic duct

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15
Q

What does not drain to the thoracic duct

A

Right limb, thorax, head and neck

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16
Q

This surrounds the arteries, nerves, veins and lmphatics of the axillary region

A

Axillary sheath

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17
Q

The branch of first part of the axillary artery

A

Superior thoracic a

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18
Q

The borders of the first part of the axillary a.

A

Between 1st rib and pectoralis minor.

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19
Q

The borders of the second part of the axillary a.

A

Deep to pectoralis minor

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20
Q

Branches of the 2nd part of the axillary a.

A

Thoracoacromial and lateral thoracic aa

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21
Q

Borders of the 3rd part of the axillary a.

A

Between pectoralis minor and Teres major mm.

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22
Q

Branches of the 3rd part of the axillary a.

A

Subscapular a.
Anterior circumflex humeral a.
Posterior circumflex humeral a.

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23
Q

Brachial plexus is composed of ventral rami from these vertebrae

A

C5-T1

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24
Q

Which upper limb muscle is not innervated by the brachial plexus

A

Trapezius m.

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25
Q

Sturcture of the brachial plexus that emerges in the upper neck

A

Rami

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26
Q

The trunks of the brachial plexus form here

A

Lower neck

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27
Q

Structure of the brachial plexus that splits off behind the clavicle

A

Division

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28
Q

Where to the brachial plexus cords form?

A

In the axillary region

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29
Q

The structure of the brachial plexus that splits off in the upper arm

A

Branches

30
Q

These rami come together to form the upper trunk

A

C5 & C6

31
Q

The middle trunk is formed from this

A

C7 Rami

32
Q

C8 and C7 rami come together to form this

A

Lower trunk

33
Q

The posterior cord is formed from these

A

All of the posterior divisions

34
Q

The lateral cord splits to form these two terminal branches

A

Musculocutaneous

Median

35
Q

The posterior cord splits to form these two terminal branches

A

Axillary

Radial

36
Q

The medial cord splits to form these two terminal branches

A

Median

Ulnar

37
Q

These two terminal branches are formed from all 5 rami

A

Radial

Median

38
Q

What rami form the musculocutaneous branch?

A

C5-C7

39
Q

What rami form the axillary branch?

A

C5 & C6

40
Q

What rami form the ulnar branch?

A

C8 & T1

41
Q

Nerve that pierces the coracobrachialis.

A

Musculocutaneous n.

42
Q

What does the musculocutaneous innervate

A

Coracobrachialis, biceps and 1/2 of brachialis m.

43
Q

Musculocutaneous m. is formed from this cord

A

Lateral

44
Q

Median n. is formed from these cords

A

Laterla

Medial

45
Q

The median n. innervates this area

A

Anterior of the forearm

46
Q

The ulnar n. is formed from this cord

A

Medial

47
Q

The ulnar n. innervates this area

A

Muscles of the hand

48
Q

The axillary n is formed by this cord

A

Posterior

49
Q

The axillary n. runs through this space

A

Quadrangular space

50
Q

What does the axillary n. innervate?

A

Deltoid and Teres minor mm.

51
Q

The radial n. is formed from this cord

A

Posterior

52
Q

What area does the radial n. pass through?

A

Triangular interval

53
Q

What does the radial n. inervate?

A

All of the muscles of the axillary and brachial regions and 1/2 of the brachialis m.

54
Q

The dorsal scapular n. branches from here

A

C5 rami

55
Q

What does the dorsal scapular n. innervate?

A

Rhomoids and levator scapulae mm.

56
Q

The long thoracic n. branches from here

A

C5-C7

57
Q

What does the long thoracic n. innervate?

A

Serratusanterior m.

58
Q

The suprascapular n. branches from here

A

Superior trunk

59
Q

What does the suprascapular n. innervate?

A

Supraspinatus and infraspinatus m.

60
Q

The lateral pectoral n. branches from here

A

Lateral cord

61
Q

These three nn. branch from the posterior cord

A

Upper subscapular n.
Lower subscapular n.
Thoracodorsal n.

62
Q

These three nn. branch from the medial cord

A

Medial pectoralis n.
Medial brachial cutaneous n.
Medial antebrachial cutaneous n.

63
Q

The lateral pectoralis n. innervates this

A

Pectoralis major

64
Q

The medil pectoralis n. innervates this

A

Pectoralis major and minor

65
Q

The upper subscapularis n. innervates this

A

Supscapularis m.

66
Q

The thoracodorsal n. innervates this

A

Latissimus dorsi

67
Q

The lower subscapularis n. innervates this

A

Subscapularis and Teres major mm.

68
Q

The nerve to subclavius branches form here

A

Superior trunk

69
Q

This nerve supplies sensory to the medial arm

A

Medial brachial cutaneous n.

70
Q

This nerve supplies sensory to the medial forearm

A

Medial antibrachial cutaneous n.

Anatomy 1 Final (13 decks)

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