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27 Cards in this Set

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Brachial Plexus is formed from
- formed by the ventral rami of C5-T1
The roots of the brachial plexus stem from
The neck
The trunks of the brachial plexus run
Deep to the clavicle. Enter the cervico-axillary canal
Dorsal scapular nerve supplies
Levator scapula and the rhomboids
Long thoracic nerve supplies
Serratus Anterior
Suprascapular nerve supplies
supraspinatus and infraspinatus
Lateral Pectoral Nerve supplies
Clavicle head of pec major
Lateral cord 1/2 of the Median nerve supplies
- muscles of anterior forearm
- skin and muscles of palm
Musculocutaneous nerve supplies
- muscles anterior arm
- skin of lateral forearm
Medial Pectoral Nerve supplies
- supplies pec minor
- sternal head of pec major
Medial brachial cutaneous nerve supplies
- supplies skin of medial arm
• Medial antebrachial cutaneous nerve supplies
- skin of the medial forearm
Ulnar nerve supplies
- supplies muscles of anterior forearm
- skin and muscles of palm
Upper subscapular nerve supplies
Subscapularis
Thoracodorsal nerve supplies
Latissimus Dorsi
Lower subscapular nerve supplies
Subscapularis
Teres Major
Axillary nerve supplies
Deltoid
Teres Minor
Skin
Radial nerve supplies
skin and muscles of posterior forearm
Waiter's tip injury AKA
Erb-Duchenne palsy
Motor Loss with Erb-Duchenne palsy
• 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.
Sensory loss with erb-dushenne palsy
• shoulder region (axillary n)
• lateral forearm (lateral antebrachial cutaneous n.)
Borders of the cubital fossa
• Medial
- Pronator teres

• Lateral
- Brachioradialis

• Superior
- imaginary line between the two condyles

• Roof = antebrachial fascia

• Floor= brachalis (med)
supinator (lat)
What type of joint is the elbow
Synovial hinge
3 articulation of the elbow joint
• 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
Radial collateral ligament attaches:
lateral epicondyle of the humerus
TO
annular ligament
Band 1 of the ulnar collateral ligament attaches
medial epicondyle of humerus
TO
the medial margin of the coronoid process
Band 2 of the ulnar collateral ligament attaches
lower and back part of the medial epicondyle
TO
the medial margin of the olecranon.