Upper Limb — Flashcards

Flashcard 21: Flexor pollicis _____ flexes the metacarpophalangeal joint and is supplied by the (recurrent motor branch of) median nerve

Answer: brevis

Flashcard 22: Branches of the posterior cord of the brachial plexus (Mnemonic: STARS): S: _____ (C5, C6) T: Thoracodorsal nerve (C6-C8) A: Axillary nerve (C5, C6) R: Radial nerve (C5-T1) S: Lower subscapular nerve (C5, C6)

Answer: Upper subscapular nerve

Extra: The posterior cord of the brachial plexus is formed by the union of the posterior divisions of all three trunks (Superior, Middle, and Inferior).

Flashcard 23: Branches of the 3rd part of the axillary artery: - _____ artery - Anterior circumflex humeral artery - Posterior circumflex humeral artery

Answer: Subscapular

Flashcard 24: The _____ and infraspinatus (rotator cuff muscles) are innervated by the suprascapular (C5-C6) nerve.

Answer: supraspinatus

Flashcard 25: In De Quervain Tenosynovitis, there is stenosing tenosynovial inflammation of the first dorsal compartment tendons that run over the _____ process, these being the tendons of the:- Abductor Pollicis Longus- Extensor Pollicis Brevis*contents of other dorsal compartments?

Answer: radial styloid

Flashcard 26: The clavipectoral fascia envelops the _____ and pectoralis minor muscles.

Answer: subclavius

Extra: The clavipectoral fascia is a fibrous sheet deep to the pectoralis major. - **Medially:** Attaches to the 1st rib and costoclavicular ligament. - **Laterally:** Attaches to the coracoid process. - **Inferiorly:** Continues as the suspensory ligament of the axilla. - **Structures piercing the fascia:** 1. Cephalic vein 2. Thoracoacromial artery 3. Lateral pectoral nerve 4. Lymphatics (from infraclavicular nodes to apical axillary nodes)

Flashcard 27: The _____ interossei aBduct the fingers; the palmar interossei aDduct the fingers.

Answer: dorsal

Flashcard 28: Structures piercing the clavipectoral fascia: 1. _____ vein 2. Thoracoacromial artery 3. Lateral pectoral nerve 4. Lymphatics

Answer: Cephalic

Flashcard 29: Level _____ lymph nodes: Superficial or deep to the pectoralis minor (central and interpectoral groups)

Answer: 2

Flashcard 30: Muscles of the thenar eminence:1. _____2. Abductor pollicis brevis3. Flexor pollicis brevis

Answer: Opponens pollicis