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27 Cards in this Set
- Front
- Back
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Brachial Plexus is formed from
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- formed by the ventral rami of C5-T1
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The roots of the brachial plexus stem from
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The neck
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The trunks of the brachial plexus run
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Deep to the clavicle. Enter the cervico-axillary canal
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Dorsal scapular nerve supplies
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Levator scapula and the rhomboids
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Long thoracic nerve supplies
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Serratus Anterior
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Suprascapular nerve supplies
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supraspinatus and infraspinatus
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Lateral Pectoral Nerve supplies
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Clavicle head of pec major
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Lateral cord 1/2 of the Median nerve supplies
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- muscles of anterior forearm
- skin and muscles of palm |
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Musculocutaneous nerve supplies
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- muscles anterior arm
- skin of lateral forearm |
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Medial Pectoral Nerve supplies
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- supplies pec minor
- sternal head of pec major |
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Medial brachial cutaneous nerve supplies
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- supplies skin of medial arm
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• Medial antebrachial cutaneous nerve supplies
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- skin of the medial forearm
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Ulnar nerve supplies
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- supplies muscles of anterior forearm
- skin and muscles of palm |
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Upper subscapular nerve supplies
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Subscapularis
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Thoracodorsal nerve supplies
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Latissimus Dorsi
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Lower subscapular nerve supplies
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Subscapularis
Teres Major |
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Axillary nerve supplies
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Deltoid
Teres Minor Skin |
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Radial nerve supplies
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skin and muscles of posterior forearm
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Waiter's tip injury AKA
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Erb-Duchenne palsy
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Motor Loss with Erb-Duchenne palsy
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• Medially rotate arm
- paralysis of infraspinatus, t. minor, posterior head of deltoid • Extend forearm - Biceps brachii, brachialis • Adducted arm - deltoid, supraspinatus • Pronated forearm - Biceps brachii, supinator • Extended arm - paralysis of anterior head of deltoid, corocobrachialis, long head of biceps brachii. |
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Sensory loss with erb-dushenne palsy
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• shoulder region (axillary n)
• lateral forearm (lateral antebrachial cutaneous n.) |
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Borders of the cubital fossa
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• Medial
- Pronator teres • Lateral - Brachioradialis • Superior - imaginary line between the two condyles • Roof = antebrachial fascia • Floor= brachalis (med) supinator (lat) |
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What type of joint is the elbow
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Synovial hinge
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3 articulation of the elbow joint
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• humero-ulnar joint
- trochlea + trochlear notch • humero-radial joint - capitulum + head of radius • proximal radio-ulnar joint - head of radius + annular ligament & radial notch of the ulna |
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Radial collateral ligament attaches:
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lateral epicondyle of the humerus
TO annular ligament |
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Band 1 of the ulnar collateral ligament attaches
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medial epicondyle of humerus
TO the medial margin of the coronoid process |
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Band 2 of the ulnar collateral ligament attaches
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lower and back part of the medial epicondyle
TO the medial margin of the olecranon. |
