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Anatomy

innervation of the upper limb

QuestionAnswer
describe the location of dermatomes C5 through C8 C4: shoulder C5: upper arm C6: forarm, thumb, part of pointer finger C7: middle finger C8: pinky
what are the three divisions of trunks on the brachial plexus superior, middle, inferior
what are the three divisions of cords lateral, posterior, medial
name the spinal roots of the root division of the brachial plexus and the nerves that come off the roots and what they innervate C5-T1. nerves that come off are the dorsal scapular and long thoracic nerve. long thoracic innervates serratus anterior. dorsal scapular nerve innervates the rhomboids and levator scapula
what are the nerves that come off the trunk of the brachial plexus nerve to subclavius and suprascapular nerve. suprascapular nerve innervates the supraspinatus and infraspinatus muscles.
describe erb's palsy and the cause of it results from damage to superior trunks/roots of the brachial plexus. the damage can be caused by falling on your shoulder, or pulling a baby out by its neck during birth.
describe Klumpke's paralysis and what causes it it results from damage to inferior trunks/roots of the brachial plexus. the damage can be caused by pulling a baby out by its arm during birth or someone who is falling and they try to grab onto something to help themselves
this part of the brachial plexus has no branches of nerves coming off of it divisions
name the nerves that come off the cords of the brachial plexus lateral pectoral, thoracodorsal, subscapular, antebrachial medial cutaneous, brachial medial cutaneous, medial pectoral
what does the lateral pectoral nerve innervate pectoralis major
what does the thoracodorsal nerve innervate latissimus dorsi
what does the subscapular nerve innervate subscapularis and teris minor
what does the antebrachial medial cutaneous nerve innergate the skin of the forarm
what does the brachial medial cutaneous nerve innervate upper arm
what does the medial pectoral nerve inervate pectoralis major and minor
what are the terminal nerves of the brachial plexus and what spinal nerves innervate them musculocutaneous (C5,C6,C7), axillary (C5,C6), Radial (C5,C6,C7,C8,T1), Median (C6,C7,C8,T1), ulnar (C8,T1)
what compartments of the arm does the musculocutaneous nerve innervate? anterior compartment: corachobrachialis, short head of biceps brachii, long head of biceps brachii, brachialis. it carries sensorhy information from the lateral forarm.
what does the axillary nerve innervate deltoid, teres minor
what compartment and muscles are innervated by the radial nerve? it innervates all the muscles of the posterior compartment of the arm and forarm: long head of triceps brachii, lateral head of triceps brachii, medial head of triceps brachii, anconeus. forarm muscles innervated also.
crutches and sitting with arms hanging over a chair can cause problems with which nerve radial nerve
the axillary nerve carries sensory information from what part of the arm lateral shoulder
the radial nerve carries sensory information from what part of the arm posterior arm and forarm
what compartment of the arm does the median nerve innervate nearly all the muscles of the anterior forarm and a few muscles of the anterior hand
what compartment of the arm does the ulnar nerve innervate nearly all the muscles of the anterior hand an done and 1/2 muscles of the anterior forarm
what are the muscles innnervated by the median nerve? anterior forearm muscles: pronator teres, palmaris longus, flexor carpi radialis, flexor digitorum superficialis, 1/2 of flexor pollicis longus, pronator quadrattus
the hand of benediction is caused by damage to what nerve median nerve dysfunction.
what does the ulnar nerve innervate nearly all the muscles o the hand: abductor digiti minimi, opponens digiti inimi, flexor digiti minimi, adductor pollicis, third and fourth lumbricals, palmer interossei, dorsal interossei
claw hand is due to what nerve dysfunction? ulnar nerve
Created by: aferdo01
 

 



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