shoulder and arm Flashcards

arm: Describe the organisation of the neuromuscular compartments of the arm, and explain their innervation and function. Describe the paths of the main blood vessels and nerve in the arm

1
Q

arteries of region

A

subclavian (towards axilla in root of neck, passing over 1st rib) -> axillary (passes through axilla at inferior border of teres major) -> brachial (gives off large branch in arm profunda brachii (deep); brachial then divides at elbow to give) -> ulnar and radial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what does subclavian arise from on right and left sides of chest

A

on right, arises from braciocephalic artery; on left, arises from aortic arch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

3 parts of axillary artery

A

superior, deep, inferior (in relation to pectoralis minor)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what nerve does the profunda brachii artery follow

A

radial nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what nerve does the brachial artery follow in the distal arm

A

median nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

arteries in scapula region

A

richly supplied with many anastomoses (extensive collateral circulation)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what are deep veins mirrored to

A

deep arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

2 superficial arteries of region and where they run

A

cephalic vein runs up lateral border of arm, basilic vein runs up the medial border of arm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what does the basilic vein join, and what does this form

A

venae comitantes at level of inferior border of teres major to form the axillary vein in the arm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

where does the cephalic vein join the axillary vein

A

in axilla (delto-pectoral groove, just as becomes subclavian vein)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

where does the axillary vein becomes the subclavian vein

A

at level of the first rib

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

other tributary of axillary vein beside cephalic vein

A

lateral thoracic vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what vein connects superficial epigastric vein to lateral thoracic vein

A

thoracoepigastric vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

function of thoracoepigastric vein

A

shunt for blood if portal system develops hypertension or blockage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what veins do deep lymph vessels run along with

A

deep veins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what veins do superficial lymph vessels run along with from the hand

A

cephalic and basilic veins

17
Q

lymph node names and locations in region

A

cubital lymph nodes in medial side of elbow and delto-pectoral lymph nodes alongside cephalic vein; all superficial lymph ultimately drains into axillary lymph nodes

18
Q

5 groups of axillary lymph nodes

A

apical, pectoral, subscapular, humeral, central

19
Q

what does lymph from axillary lumph nodes then drain into and via what

A

into subclavian lymph trunk via apical lymph nodes, then into right lymphatic duct (right) or common thoracic duct (left)

20
Q

what do axillary lymph nodes also drain, and what can removal lead to

A

drain breast also, so removing leads to lymphedema

21
Q

2 nerves in close relation to axillary lymph node region

A

long thoracic nerve and thoracodorsal nerve

22
Q

what muscle does long thoracic nerve supply

A

serratus anterior

23
Q

what muscle does thoracodorsal nerve supply

A

latissimus dorsi

24
Q

what can section of long thoracic nerve cause

A

paralysis of serratus anterior, causing winging of scapula