Upper Limb Flashcards

1
Q

Muscles in Anterior Upper Arm

A

Biceps brachii, Coracobrachialis, Brachialis

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2
Q

Anterior upper arm actions

A

flexion of elbow and shoulder

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3
Q

Innervation of anterior upper arm

A

Musculocutaneous (C5, C6, C7)

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4
Q

Blood supply of anterior upper arm

A

Brachial artery with a little axillary artery

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5
Q

Muscles of Posterior upper arm

A

Triceps (3 heads)

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6
Q

Major actions of posterior upper arm

A

elbow and shoulder extension

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7
Q

Innervation of triceps

A

Radial nerve

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8
Q

Blood supply of triceps

A

Profunda brachii (deep brachial artery) and a little from axillary

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9
Q

Damage to radial nerve symptoms

A

Wrist drop, loss of sensation on dorsal hand, weakness in shoulder extension, weakness in thumb opposition

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10
Q

Major actions of the anterior forearm muscles

A

flexion of wrist and fingers and pronation

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11
Q

Innervation of anterior forearm

A

All median nerve except flexor carpi ulnaris and medial part of flexor digitorum profundus (supplied by ulnar nerve)

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12
Q

Blood supple to anterior forearm

A

proximal = brachial, ulnar or ulnar recurrent arteries
Distal = radial or ulnar arteries

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13
Q

Damage to median nerve

A

weakness in flexion of wrist and fingers, loss of sensation on palm + tips of first 2 fingers, weakness of index finger when you push against it

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14
Q

Major actions of posterior forearm

A

extension of wrist and fingers

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15
Q

Innervation of posterior compartment

A

Radial nerve

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16
Q

Blood supply of posterior forearm

A

posterior interosseous artery

17
Q

Innervation of the hand areas

A

Ulnar = little finger and half of ring finger
Radial = Dorsal surface and thumb
Median = Palm, half of ring finger and top bits of first and middle finger

18
Q

Hand bones - Name them!

A

Scaphoid, Lunate, Triquetrum, Pisiform, Trapezium, Trapezoid, Capitate, Hamate
Some lovers try positions that they cant handle

19
Q

Function, Innervation and blood supply of traps

A

elevates and retracts scapula and pulls scapula inferiorly
Accessory nerve (CNXl)
Occipital, superficial and dorsal scapular artery

20
Q

Function, Innervation and blood supply of lats

A

extends, adducts and medially rotates upper limb
thoracodorsal nerve
thoracodorsal artery

21
Q

Deep muscles of extrinsic shoulder

A

Levator scapulae, Rhomboid major and minor

22
Q

Major actions of deep muscles of extrinsic shoulder

A

levator scapulae = elevation of scapula and inferior rotation of glenoid fossa
rhomboids = retraction of scapula and inferior rotation of glenoid fossa

23
Q

innervation of deep muscles of the extrinsic muscles of the shoulder

A

Dorsal scapular nerve

24
Q

Blood supply of the deep muscles of the extrinsic shoulder

A

Dorsal scapular artery

25
Function, Innervation and blood supply of the deltoid
Flexion/extension and medial/lateral rotation of the shoulder innervated by the axillary nerve (C5-6) Blood supply is the Thoracoacromial, subscapular, anterior and posterior circumflex humeral, brachial arteries
26
Function, Innervation and blood supply of Teres major
adduction and extension of the shoulder and medially rotates arm innervated by the lower scapular nerve blood supply is subscapular and posterior circumflex humeral arteries
27
Rotator cuff muscles
supraspinatus, infraspinatus, teres minor and subscapularis
28
major function of RTC muscles
pull humeral head into glenoid and stable head of humerus
29
Innervation of RTC muscles
Supra + infraspinatus = suprascapular nerve Teres minor = axillary nerve subscapularis = upper and lower subscapular nerve
30
Blood supply of RTC muscles
Suprascapular, Subscapular and posterior circumflex humeral arteries
31
Damage to axillary nerve
Often due to shoulder dislocations Shoulder weakness and pain and instability
32
Impingement syndrome
pain and weakness and restricted shoulder movement Supraspinatus tendon usually affected