Re: Arm and Cubital Fossa: True/False 2009

Comments:
: #15 - More a question here. Are depression, elevation, protraction, and retraction really movements of/at the shoulder? Think about it, the shoulder joint itself isn't really moving, is it? : #16 - Pectoralis major can still medially rotate. : #27 - I agree, and the IO recurrent is also known as the posterior IO recurrent. : #29 - Superior ulnar collateral runs posterior to the elbow. : ~Dave : : 1 - true bc it is not within the brachial plexus : : 2 - False the quad space is associated with the surgical neck : : : : : : Arm and Cubital Fossa: True/False 2009 : : : : These questions were not submitted by the lecturer. : : : : True/False : : : : 1. The intercostobrachial nerve is segmental and, thus, not derived from a plexus. : : : : : : : 2. Structures passing through the quandrangular space are immediately related to the anatomical neck of the humerus. : : : : : : : 3. The spiral (radial) groove is located on the anterior surface of the humerus. : : : False - posterior surface : : : : 4. Three fossae of the distal humerus contribute to stability of the extended elbow. : : : False - there are 3 fossae of the distal humerus (radial, trochlear and Olecranon) but only olecranon contributes to stability in extension : : : : 5. Teres minor, a medial rotator of the forearm, is innervated by the lower subscapular nerve. : : : True : : : : 6. The long head of the triceps contributes to the borders of two named spaces and a named interval. : : : True - Medial boarder of quad space and triangular interval, and lat boarder for triangular space : : : : 7. The long head of the triceps is biarticulate. : : : True - elbow and shoiulder, elbow extension and weak shouler extension : : : : 8. The spiral groove separates the origins of the lateral and medial heads of the triceps. : : : True - Lat head is sup/lat and medial head is inf/medial : : : : 9. Teres major shares an insertion with the pectoralis major at the lateral lip of the intertubercular sulcus. : : : False - Teres Major inserts on medial lip : : : : 10. The triangular interval is immediately related to the circumflex scapular artery. : : : False - triangular space, radial N. and profunda brachii a. run thru interval : : : : 11. Both heads of the biceps are biarticulate whereas the brachialis and the coracobrachialis are monoarticulate. : : : True - Long head Originates at supraglenoid tub, short head at coracoid process : : : : : : 12. The bicipital aponeurosis provides protection for the ulnar nerve within the cubital fossa. : : : False - Ulnar N doesn't run through cubital fossa : : : : 13. A lesion of the musculocutaneous nerve within the axilla results in uncompensated loss of flexion at the elbow. : : : False - Biceps, brachialis effected. Coracobrachialis uneffected but not involved in elbow flexion. Still have flexion from brachioradialis (radial N.) and weak flexion from pronator teres (median N), : : : : 14. The brachialis may receive innervation from the radial nerve. : : : True - Idk why, radial N runs inbetween the brachioradialis and the brachialis so why not : : : : 15. A lesion of the axillary nerve within the axilla results in weakness of all shoulder movements with a pronounced weakenss in abduction. : : : False - No weakness in depression, elevation, protraction and retraction : : : : 16. Lesions of the upper, middle, and lower subscapular nerves results in complete loss of medial rotation of the arm. : : : True - subscap, teres major and lat are out : : : : 17. Coracobrachialis assists the biceps in flexing the forearm. : : : False - just shoulder : : : : 18. Brachialis assists the long head of the triceps in adducting the arm. : : : False - coracobrachialis assists : : : : 19. Brachioradialis flexes the elbow, supinates from pronation, pronates from supination, and is, thus, critical to the execution of a straight pool stroke. : : : True : : : : 20. The brachial fascia gives rise to the anterior and posterior intermuscular septae. : : : True : : : : 21. The radial nerve penetrates the medial intermuscular septum to then enter the cubital fossa. : : : False - Lateral : : : : 22. The ulnar nerve penetrates the lateral intermuscular septum to enter the posterior compartment of the arm. : : : False - Medial : : : : 23. The profunda brachial artery gives rise to the radial and middle collateral arteries. : : : True : : : : 24. The middle collateral artery passes within the long head of the triceps. : : : False : : : : 25. The brachial artery terminates within the cubital fossa : : : True - Bifurcates into radial and ulnar : : : : 26. The radial recurrent artery passes along the medial border of the brachioradialis. : : : True : : : : 27. The posterior interosseous recurrent artery passes within the anconeus muscle. : : : True - in our notes there is only an interosseous recurrent, not post. and ant. : : : : 28. The posterior ulnar recurrent artery passes between the humeral and ulnar heads of origin of the flexor carpi radialis. : : : False, there is only one head of the radialis, the ulnaris is true : : : : 29. The superior ulnar collateral artery penetrates the medial intermuscular septum to then pass anterior to the elbow. : : : True : : : : 30. The radial and median nerves, but not the ulnar nerve, are contents of the cubital fossa. : : : True : : : : 31. Within the cubital fossa the median nerve is medial to the brachial artery. : : : True

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