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level: Level 1

Questions and Answers List

level questions: Level 1

Question	Answer
Union of anterior rami of C5-C8 and T1 spinal nerves (motor and sensory fibers)	What is brachial plexus?
Together with subclavian a. they pass anterior and middle scalene mm.	What muscles do roots of brachial plexus pass?
middle and inferior cervical ganglia	Where dose sympathetic fibers in roots of brachial plexus come from?
trunks divide to anterior and posterior divisions	What happens with brachial plexus at cervicoaxillary canal?
good	draw brachial plexus
anterior divisions: flexors, anterior compartment posterior divisions: extensors, posterior compartment	What are anterior and posterior divisions of brachial plexus supplying?
relation to axillary artery	What determines the name of cords of brachial plexus?
supraclavicular: -from roots and trunks infraclavicular: -from cords	Where dose the supraclavicular branches and infraclavicular branches of brachial plexus come from?
dorsal scapular long thoracic suprascapular subclavian muscular branches from C5-T1 to scalenii and longus colli gives a branch to pherinc n (C3, C4, C5)	Name all supraclavicular branches
musculocutaneous, axillary, radial, median, ulnar lateral pectoral, medial pectoral medial cutaneous n of arm, medial cutaneous n of forearm upper subscapular, lower subscapular thoracodorsal	Name all infraclavicular branches
Suprascapular	What nerve innervate glenohumeral joint?
subclavian n	What nerve is innervating sternoclavicular joint?
coracobrachialis brachialis biceps brachii skin of lateral aspect of forearm	What is musculocutaneous n innervating?
muscles of anterior compartment of forearm (except flexor carpi ulnaris, ulnar part of flexor digitorum profundus) 1st and 2nd lumbrical mm. thenar mm. (opponens pollicis, abductor pollicis brevis, part of flexor pollicis brevis) sensory fibers to 1st, 2nd, 3rd and half of 4th digits	What is median n innervating?
flexor carpi ulnaris ulnar part of flexor digitorum profundus 3rd and 4th lumbrical m. adductor pollicis part of flexor pollicis brevis skin from half of 4th digit and 5th digit and lateral palm and dorsum of hand	What is supplied by ulnar n?
glenohumeral joint teres minor deltoid skin of deltoid region	What is axillary n suppling?
all muscles of posterior arm/forearm skin of posterior arm and forearm dorsum of hand until 4th digit	What is radial n supplying ?
pectoralis major m.	What is lateral pectoral n supplying?
pectoralis minor sternocostal part of pectoralis major	What is medial pectoral n supplying?
superior portion of subscapularis	What is supplied by upper subscapular n ?
inferior portion of subscapularis teres major m	What is supplied by lower subscapular n ?
latissimus dorsi m	Thoracodorsal n supplies..
rhomboid major rhomboid minor levator scapulae	Dorsal scapular n supplies...
dorsal scapular n	Which nerve pierces middle scalene muscle?
long thoracic n	Which nerve passes through cervicoaxillary canal?