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Dissection 9 Flashcards

1
Q

What are the compartments in the arm?

A

anterior and posterior

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2
Q

What are the compartments in the forearm?

A

anterior; posterior and latelral

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3
Q

What is the arterial and venous supply to the ant. compt. of the arm?

A

brachial artery and vain

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4
Q

What is the arterial and venous supply to the posterior compt. of the arm

A

profunda brachii artery and vein

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5
Q

What is the nerve to the ant. compt. of the arm?

A

musculocutaneous

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6
Q

What is the nerve supply to the post. compt. of the arm?

A

radial

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7
Q

What is the blood suuply to the ant. compt. of the forearm?

A

radial and ulnar arteries; venae comitantes

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8
Q

What is the blood suppply and drainage to the post. compt. of the forearm?

A

interosseous artery; venae comitantes

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9
Q

what is the nerve supply to the ant. compt. of the forearm?

A

median (and ulnar)

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10
Q

What is the nerve supply to the post. forearm?

A

radial

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11
Q

What is the blood supply to the hand?

A

deep nad superficial palmar arches

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12
Q

What is the main nerve supply to the hand?

A

ulnar nerve

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13
Q

What are the spinal roots of the brachial plexus?

A

C5-T1

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14
Q

What are the 3 trunks of the brachial plexus?

A

upper; middle and lower

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15
Q

What spinal nerve roots form the upper trunk?

A

C5 and C6

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16
Q

what spinal nerve forms the middle trunk?

A

C7

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17
Q

What spinal nerve roots form the lower trunk?

A

C8 and T1

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18
Q

What form the lateral cord of the brachial plexus?

A

anterior division of the upper and middle trunks

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19
Q

What forms the posterior cord of the brachial plexus?

A

posterior divisions of upper, middle and lower trunk

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20
Q

What forms the medial cord of the brachial plexus?

A

anterior division of the lower trunk

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21
Q

What 2 nerves does the posterior cord split into?

A

axillary and radial nerves

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22
Q

What cord does the musculocutaneous nerve branch from?

A

lateral cord

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23
Q

what cord does the ulner nerve branch from?

A

medial cord

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24
Q

whhich cords form the median nerve?

A

lateral and medial

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25
What nerve roots form the ong thoracic nerve?
C5; C6; C7
26
What artery does the subclavian become?
axiallry
27
What artery does the axillary artery become?
brachial
28
what does the brachial artery bifurcate into?
ulnar and radial arteries
29
What archdoes the radial artery form?
deep palmar arch
30
What arch does the ulnar artery form?
superficial palmar arch
31
What are the 2 main veins in the arm?
cephalic and basilic veins
32
What is the vein that joins the basilic and cephalic veins?
median cubital vein
33
What do the venae comitantes accompany?
brachial artery
34
What is the axillla?
pyramidal space inferior to the shoulder joint and just superior to the hollow that pts refer to as the armpit
35
What is the medial wall of the axilla?
superolateral aspect of the chest
36
What forms the anterior wall of the axilla?
pectoralis major muscle
37
Where does the brachial vein become the axiallry vein?
the lower border of teres major
38
What forms the inferior border of the axilla?
teres major
39
Where does the subclavian artery become the axillary aretry?
lateral border of the first rib
40
Where are the roots and trunks of the brachial plexus found?
between the anterior and middle scalene muscles in the root of the neck
41
Where are the divisions of the brachial plexus found?
immediately posterior to the subclavian vessels in the root of the neck (deep to the clavical
42
Where do the cords of the brachial plexus lie?
around the axiallry artery- distal to the first rib
43
What nerve is vulnerable to injury in shoulder dislocation or fractured neck of humerus?
axillary nerve
44
why is the axillary nerve vulnerable to injury in shoulder injury?
wraps around the posterior aspect of the surgical neck of the humerus
45
What forms the apex of the axilla?
cervico-axiallry canal
46
What is the cervic-axillary canal?
a passageway between the neck and axilla that carries the arteries, veins, nerves and lympathics to the arm
47
What bounds the cervico-axillary canal?
1st rib, clavicle and superior edge of the scapula
48
What forms the base of the axilla?
the axillary fossa- made up of concave skin, subcut tissue and axillary fascia extending from the thoracic wall
49
What form the anterior wall of the axilla?
pectorilis major and minor and the pectoral and clavipectorla fascia associated with them
50
What forms the posterior wall of the axilla?
scapula and the subsacuparis on its anetrior surafce and inferiorly by the teres major and lattissimus dorsi
51
What forms the medial wall of the axilla?
thoracic wall and overlying serratus anterior
52
What forms the lateral wall of the axilla?
intertubercular surface of the humerus
53
What are the four anterior axio-appendicular muscles that move the pectoral girdle?
pecoralis major and minor; subclavius and serratus anterior
54
what muscle does the musculcutaneous nerve emerge from?
coracobrachialis
55
What are the 2 heads of the pectoralis major?
clavicular and sternocostal heads
56
What does the clavicular head of the pectoralis major attach to?
anterior surface of medial half of clavicle
57
What does the sternocostal heado f the pectoralis major attach to?
anterior surface of sternum, superior 6 costal cartilages and the aponeurosis of external oblique muscle
58
`What is the distal attachment for the pectoralis major?
lateral lip of intertubercular groove of humerus
59
What nerves supply pectoralis major?
lateral and medial pectoral nerves
60
What is the proximal attachemnt for pectoralis minor?
3-5th ribs near their costal cartilages
61
What is the distal attachment for pectoralis minor?
medial border and superior surface of coracoid process of scapula
62
What is the nerve supply to pectoralis minor?
medial pectoral nerve
63
What is the proximal attachment for subclavius?
junction of 1st rib and its costal cartilage
64
What is the distal attachment for subclavius?
inferior surface of middle third of clavicle
65
What is the nerve supply to subclavius?
subclavian nerve
66
What is the nerve supply to serratus anterior?
long thoracic nerve
67
What is the proximal attachment of serratus anterior?
external surfaces of lateral partsof 1st-8th ribs
68
What is the ditsla attachment for serratus anterior?
anterior surface of medial border of scapula
69
What is the prox. attachment for supraspinous?
supraspinous fossa of scapula
70
What is the prox. attachment for infraspinous?
infraspinous fossa of scapula
71
What is the prox. attachment for teres minor?
middle part of lateral border of scapula
72
what is the distal attachment for teres minor, supraspinous and infraspinous?
greater tubercle of humerus
73
What is the proximal attachment for the teres major?
posterior aspet of inferior aspect of scapula
74
What is the distal attachment for teres major?
medial lip of interbuercular sulcus of humerus
75
What is the proximal attachment for subscapularis?
subscapular fossa
76
What is the distal attachment for subscapularis?
lesser tubercle of humerus
77
What is the nervous supply to supraspinous nad infraspinous?
suprascapular nerve
78
What is the nerve supply to teres minor?
axillary nerve
79
what is the nerve supply to teres major?
lower subscapular nerve
80
what is the nerve supply to subscapularis?
upper and lower subscapular nerves
81
What is the proximal attachment of deltoid?
lateral third of clavicle; acromion and spine of scapular
82
What is the distal attachment for deltoid?
deltoid tuberosity of humerus
83
what is the nerve supply of deltoid?
axillary nerve

MSK (39 decks)

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