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Anatomy > Axilla and Brachial plexus > Flashcards

Axilla and Brachial plexus Flashcards

1
Q

Axilla walls

A

Anterior: pec major and minor
Posterior: lat dorsi, teres major and subscapularis
Medial: Serratus anterior
Lateral: Intertubercular sulcus of humerus
Base: skin and fascia of arm pit

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2
Q

Contents of Axilla

A

Fat and connective tissue
Axillary vein(not THE axillary) and lymphatics (outside sheath)
Cutaneous nerves
Axillary sheath: axillary a. and brachial plexus

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3
Q

Principal lymphatic node groups

A 
Pectoral
Subscapular
humeral
Central
Apical
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4
Q

Pectoral node

Drains

A

Drains anterior thoracic wall and most of breast

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5
Q

Pectoral node

Location

A

Anterior wall near lateral thoracic vein and inferior border of pec minor

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6
Q

Subscapular node

Drains

A

Posterior thoracic wall and scapular region

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7
Q

Subscapular node

location

A

along subscapular vessels

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8
Q

Humeral node

Drains

A

Upper limb except for portion along cephalic vein

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9
Q

Humeral node

location

A

along lateral axilla and axillary vein

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10
Q

Central node

Drains what to where

A

humeral, subscapular, pectoral to apical

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11
Q

Central node location

A

deep to pec major

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12
Q

Apical node

Drains

A

Pectoral, subscapular, humeral, central, Proximal cephalic vein nodes

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13
Q

Cephalic vein location

A

Deltopectoral groove

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14
Q

Axillary sheath contains

A

Vessels, nerves, some lymphatics

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15
Q

Brachial plexus
_____ rami of (vertebral levels)
Serves

A

Ventral rami of C5-T1

All upper limb muscles except trapezius

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16
Q

Brachial plexus structure

A 
Rami (5) upper neck
Trunks (3) lower neck
Divisions (6) behind clavicle
Cords (3) axillary region
Branches (5) upper arm
17
Q

Musculocutaneous innervates

A

coracobrachialis
biceps
1/2 brachialis

18
Q

Median nerve innervates

A

anterior forearm
3 thenar eminence mm
1st 2 lumbricals in hand

19
Q

Ulnar nerve innervates

A

muscles of the hand
Flexor Carpi Ulnaris
ulnar 1/2 Flexor Digitorum Profundus

20
Q

Axillary nerve innervates

A

deltoid

teres minor

21
Q

Musculocutaneous nerve passes thru _____

A

coracobrachialis muscle

22
Q

Ulnar Nerve runs behind _______

A

medial epicondyle

23
Q

Axillary nerve circles ______ ______ in _____

A

behind humerus in quadrangular space

24
Q

Axillary nerve innervates

A

deltoid

teres minor

25
Q

Radial nerve innervates

A

posterior arm
posterior forearm
1/2 brachialis

26
Q

Radial nerve passes posterior to ____ in ____ groove and within _______

A

Passes posterior to humerus in radial groove with within triangular interval

27
Q

Upper plexus

A

Dorsal scapular
Long thoracic
Suprascapular

28
Q

Lower plexus

A

Upper subscapular
thoracodorsal
lower subscapular

Anatomy (13 decks)

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