Question | Answer |
Spinal level of upper lateral brachial cutaneous n | C5 (from axillary n) |
Spinal level of intercostobrachial n | T2 |
Spinal level of medial brachial cutaneous n | C8, T1 |
Spinal level lower lateral brachial cut n. | C5, C6 (from radial n) |
Spinal level Medial antebrachial cutaneous n | C8, T1 |
Spinal level of posterior antebrachial cutaneous n. | C6,7,8 (from radial) |
Spinal level of lateral antebrachial cutaneous | C5,6 |
Spinal level of supraclavicular n | C3,4 |
Spinal level of posterior brachial cutaneous n | C8, T1 (from radial) |
Origin of long head of biceps | Supraglenoid tubercle of scap |
Origin of short head of biceps | Coracoid process of scapula |
Insertion of biceps | Radial tuberosity |
Innervation of biceps | Musculocutaneous n. |
Spinal levels of biceps | C6 |
Actions of biceps | Flexes forearm, supination at 90 |
Origin of coracobrachialis | Coracoid process of scap |
Innervation of coracobrachialis | Musculocutaneous n. |
Insertion of coracobrachialis | Medial surface of middle humerus |
Spinal level of coracobrachialis | C6 |
Action of coracobrachialis | Flexes & adducts humerus at glenohumeral joint |
Origin of brachialis | Distal half of anterior humerus |
Insertion of brachialis | Ulnar tuberosity and anterior surface of coronoid process |
Innervation of brachialis | Musculocuteous n. |
Spinal level of brachialis | C6 |
Action of brachialis | Flexes forearm at elbow in any position |
Peripheral entrapment sites for musculocutaneous n. | Coracobrachialis and brachialis |
Symptoms of entrapment of musculocutaneous n | Forearm flexion and supination weakness. Paresthesia on C6 dermatome |
Peripheral entrapment sites for lateral antebrachial cutaneous n. | Biceps and brachialis |
Symptom of Peripheral entrapment of lateral antebrachial cutaneous n. | Paresthesia |
Axillary artery --> ________ --> _________ & ________ | Brachial, radial, ulnar |
What branches off brachial artery? | Province brachii, superior & inferior ulnar collateral |
What anastomoses with radial collateral a.? | Radial recurrent a. |
What anastomoses with superior ulnar collateral a. | Posterior ulnar recurrent a. |
What anastomoses with inferior ulnar collateral a.? | Anterior ulnar collateral a. |
Ulnar a. --> ________ --> _________&_________ | Common interosseous a., post & ant interosseous a |
Post & ant ulnar recurrent a. Come off of? | Ulnar a |
Origin of long head of triceps | Infraglenoid tubercle of scap |
Origin of lateral head of triceps | posterolateral surface of humerus and lateral intermuscular septum |
Origin of medial head of triceps | Postermedial surface of humerus and medial intermuscular septum |
Insertion of triceps | Olecranon process of ulna |
Innervation of triceps | Radial n. |
Spinal levels of triceps | C7, C8 |
Actions of triceps | Extends forearm at elbow; long head stabilizes glenohumeral joint & extends the humerus at glenohumeral joint |
Basilic vein travels with what nerve? | Medial antebrachial cutaneous n. |
Cephalic vein travels with what nerve? | Lateral antebrachial cutaneous |
What are the boundaries of the CUBITAL FOSSA? (floor, roof, lateral & medial borders) | Floor = brachialis tendon; Roof = Bicepital aponeurosis; Lateral border = Brachioradialis; Medial border = Pronator Teres |