Upper Limb Flashcards

Learn the upper limb for MCQ

1
Q

Position of the breast

A

Midclavicular line, ribs 2-6

Nipple in 4th intercostal

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2
Q

Blood supply of the breast

A

Internal thoracic - 1st part of subclavian
Lateral thoracic - 2nd part of the axillary
Thoraco-acromial - 2nd part of the axillary
Intercostal - internal thoracic.

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3
Q

Origin of latissimus dorsi

A

Spines and supraspinous ligament T7 down to the sacrum, lumbar fascia, posterior third of iliac crest, last 4 ribs and inferior angle of scapula

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4
Q

Insertion of latissimus dorsi

A

Floor of Bicipital groove

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5
Q

Action of latissimus dorsi

A

Adducts, extends and medially rotates shoulder. Aids in inspiration and expiration

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6
Q

Lat dorsi n.

A

Thoracodorsal nerve

Posterior cord

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7
Q

Pec major o.

A

Medial half of clavicle, anterior and lateral manubrium, body of sternum, aponeurosis of ext. oblique, upper 7 costal cartilages

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8
Q

Pec major i.

A

Anterior lamina and lateral lip of bicipital groove, manurial fibres to intermediate lamina, posterior lamina

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9
Q

Pec major action.

A

Flexion, adduction, internal rotation

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10
Q

Pec major n.

A

Lateral and medial pectoral nerves - supplied by all 5 segments of the brachial plexus.

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11
Q

Deltoid o.

A

lateral third of the clavicle, acromion, spine of scapula as far as deltoid tubercle of scapula

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12
Q

Deltoid i.

A

Deltoid tubercle of humerus

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13
Q

Deltoid action

A

Abducts arm, anterior fibres flex and medially rotate. posterior fibres extend and laterally rotate.

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14
Q

Deltoid nerve supply

A

Axillary (C5,6 - posterior cord)

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15
Q

Teres major o.

A

Oval area on lower third lateral side of inferior angle of the scapula

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16
Q

Teres major i.

A

Medial lip of bicipital groove

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17
Q

Teres major a.

A

Medial rotation, adduction, stabilisation of shoulder

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18
Q

Teres major nerve

A

Lower subscapular - posterior cord (C5,C6)

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19
Q

Teres minor o.

A

Middle third lateral border of scapula

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20
Q

Teres minor i.

A

Inferior facet of greater tuberosity and joint capsule

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21
Q

Teres minor a.

A

Lateral rotation and stabilisation of shoulder

22
Q

Teres minor nerve

A

Axillary nerve (C5, 6 - posterior cord)

23
Q

Serratus anterior o.

A

Upper 8 ribs and intercostal

24
Q

Serratus anterior i.

A

Inner, medial border of scapula

25
Serratus anterior action
Protracts and laterally rotates scapula
26
Serratus anterior nerve
Long thoracic nerve (of Bell) - C5 to slips 1 and 2 - C6 to slips 3 and 4 - C7 to slips 5,6,7,8: crowded around lower tip of scapula (lateral rotation)
27
Muscles of rotator cuff
Supraspinatus, subscapularis, infraspinatus, teres major
28
Action of rotator cuff
Lateral rotation of the shoulder. Brace the head of the humerus against the glenoid
29
Subscapularis o.
Medial ⅔ of sub scapular fossa
30
Subscapularis i.
lesser tuberosity of humerus, half medial lip of bicipital groove and joint capsule
31
Subscapularis action
Medial rotation and stabilisation of shoulder
32
Subscapularis nerve
Upper and lower subscapular - posterior cord, C6,7
33
Infraspinatus o.
medial ¾ infraspinous fossa and intermuscular septum
34
Infraspinatus i.
Medial facet of greater tuberosity of humerus and joint capsule
35
Infraspinatus action
Lateral rotation and stabilisation of the shoulder
36
Infraspinatus nerve
Suprascapular nerve (C5,6 upper trunk)
37
Supraspinatus o.
¾ supraspinous fossa and upper spine of scapula
38
Supraspinatus i.
Superior facet of greater tuberosity of humerus and joint capsule
39
Supraspinatus action
Abducts and stablises shoulder
40
Supraspinatus nerve
Suprascapular (C5,6, upper trunk)
41
Quadrangular space borders and contents
Teres major and subscapularis in POSTERIOR wall of axilla. Laterally bounded by humerus and medially by long head of triceps. Contents: - Axillary nerve - Posterior circumflex humeral artery and vein inferiorly.
42
Triangular space
Between humerus and long head of triceps. | Contents: radial nerve and profunda brachii vessels.
43
What pierces the clavipectoral fascia
``` Passing inwards - lymphatics from the infraclavicular nodes to the apical nodes. - Cephalic vein Passing outwards - Thoracoacromial vessels - Lateral pectoral nerve. ```
44
Posterior wall of the axilla
Subscapularis, teres major, latissimus dorsi
45
Medial wall of the axilla
Serratus anterior to 4th rib
46
Anterior wall of the axill
Pec major and minor, clavipectoral fascia
47
Lateral wall of the axilla
Intertubercular (bicipital groove) and biceps tendon
48
Floor of axilla
Axillary fascia
49
Contents of axilla
Neurovascular bundle from the neck, long head of biceps, coracobrachialis, long thoracic nerve.
50
Nerve to remember during axillary dissection and why
Intercostalbrachial nerve. Sensory - supplies variable amount of skin on inner aspect of axilla and upper arm.
51
Nerve of the flexor compartment of the arm
Musculocutaneous nerve