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Nerves of upper limb

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Nerves of upper limb

  1. 1. NERVES OF UPPER LIMB -KESHAVA PAVAN K NERVE ROOT ORIGIN COURSE AND BRANCHES SENSORY MOTOR CLINICAL VALUE INNERVATION INNERVATION ASPECTSAXILLARY C5 AND POSTERIOR -PASSES THROUGH QUADRANGULAR -SHOULDER -DELTOID -REGIMENTAL C6 CORD OF SPACE JOINT -TERES MINOR BADGENERVE BRACHIAL -RUNS AROUND SURGICAL NECK OF -SKIN OVER ANASTHESIA PLEXUS HUMERUS LOWER LATERAL -WASTING OF -GIVES A BRANCH TO SHOULDER JOINT, PART OF DELTOID THEN DIVIDES TO ANTERIOR & SHOULDER -IMPAIRED POSTERIOR BRANCHES ABDUCTION OF -ANTERIOR BRANCH CONTINUES AS SHOULDER UPPER LATERAL CUTANEOUS NERVE OF -ALL THESE ARM OCCUR DURING INFERIOR DISLOCATION OF HEAD OF HUMERUS FROM SHOULDER AND FRACTURE OF SURGICAL NECK OF HUMERUSMUSCULO- C5, C6 LATERAL -PIERCES CORACO BRACHIALIS -SKIN OF -CORACO AND C7 CORD OF -PASSES BETWEEN BICEPS & BRACHIALIS LATERAL PART BRACHIALISCUTANEOUS BRACHIAL -MUSCULAR BRANCHES TO MUSCLES OF OF FOREARM -BICEPS BRACHIINERVE PLEXUS ANTERIOR FOREARM -BRACHIALIS -LATERAL CUTANEOUS NERVE OF FOREARM -ARTICULAR BRANCH TO ELBOW
  2. 2. RADIAL C5 TO POSTERIOR -IN AXILLA 3 BRANCHES: POSTERIOR -SKIN ON BACK & -TRICEPS -INJURY TO T1 CORD OF CUTANEOUS NERVE OF ARM, NERVES TO LATERAL -ANCONEUS RADIAL NERVENERVE BRACHIAL LONG & MEDIAL HEADS OF TRICEPS SURFACE OF ARM -SMALL PART OF RESULTS MAINLY -ENTERS ARM AT LOWER BORDER OF UPTO ELBOW BRACHIALIS & IN ‘WRIST DROP’ PLEXUS TERES MAJOR -SKIN DOWN THE BRACHIORADIALIS -‘SATURDAY -PASSES THROUGH LOWER TRIANGULAR MIDDLE OF BACK -ECRL & ECRB NIGHT PARALYSIS’ SPACE & REACHES SPIRAL GROOVE OF FOREARM -SUPINATOR -RADIAL TUNNEL -IN SPIRAL GROOVE, 5 BRANCHES: UPTO WRIST -ALL EXTENSOR SYNDROME LOWER LATERAL CUTANEOUS NERVE OF -SKIN OVER MUSCLES OF -INJURY TO DEEP ARM, POSTERIOR CUTANEOUS NERVE OF LATERAL PART FOREARM BRANCH FOREARM, NERVES TO LATERAL & OF DORSUM OF MEDIAL HEADS OF TRICEPS AND TO HAND & DORSAL ANCONEUS SURFACES OF -AT LOWER END OF SPIRAL GROOVE, LATERAL 3 AND PIERCES LATERAL MUSCULAR SEPTUM HALF DIGITS OF ARM & ENTERS ANTERIOR PROXIMAL TO COMPARTMENT OF ARM WHERE IT GIVES NAIL BEDS. 3 BRANCHES (ABOVE LATERAL EPICONDYLE): NERVES TO BRACHIALIS, BRACHIORADIALIS & ECRL -ENTERS CUBITAL FOSSA -DEEP BRANCH (POSTERIOR INTEROSSEUS NERVE) PIERCES SUPINATOR & ENTERS EXTENSOR COMPARTMENT OF FOREARM -SUPERFICIAL BRANCH IN ANTERIOR COMPARTMENT PASSES THROUGH TENDON OF BRACHIORADIALIS INTO POSTERIOR COMPARTMENT, PROXIMAL TO RADIAL STYLOID PROCESS -CONTENT OF ANATOMICAL SNUFF BOX, THEN GIVING CUTANEOUS BRANCHES.
  3. 3. MEDIAN C5 TO -LATERAL -ENTERS ARM AT LOWER BORDER OF -SKIN OF -FPL, LATERAL -INJURY AT ELBOW T1 ROOT FROM TERES MAJOR PALMAR ASPECT HALF OF FDP & RESULTS INNERVE SYMPTOMS LIKE APE LATERAL -IN ARM, CROSSES IN FRONT OF OF LATERAL 3 PRONATOR(LABOROR’S CORD & BRACHIAL ARTERY AT MIDHUMERAL AND HALF DIGITS QUADRATUS BY THUMB DEFORMITY & BENEDICTIONNERVE) MEDIAL LEVEL INCLUDING NAIL A.I.N. ATTITUDE ROOT FROM -ENTERS CUBITAL FOSSA BEDS & SKIN ON -3 THENAR -INJURY AT MEDIAL -IN CUBITAL FOSSA, COVERED BY DORSAL ASPECT MUSCLES AND FOREARM LEADS TO CORD BICIPETAL APONEUROSIS SEPARATING IT OF DISTAL FIRST 2 POINTING INDEX FROM MEDIAN CUBITAL VEIN PHALANGES LUMBRICALS FINGER -GIVES MUSCULAR BRANCHES IN -PRONATOR -CARPAL TUNNEL CUBITAL FOSSA TERES, SYNDROME : COMPRESSION OF -LEAVES CUBITAL FOSSA BY PASSING FCR,PALMARIS MEDIAN NERVE IN THROUGH 2 HEADS OF PRONATOR LONGUS & FDS THE CARPAL TERES & GIVES OFF THE BRANCH- -WRIST & TUNNEL ANTERIOR INTEROSSEOUS NERVE INFERIOR RADIO -TESTS USED TO -IN FOREARM PASSES BETWEEN FDS & ULNAR JOINT DETECT ARE TINEL’S FDP SIGN, PHALEN’S TEST -MUSCULAR BRANCH IN MIDARM -ARTICULAR BRANCHES TO ELBOW & PROXIMAL RADIO ULNAR JOINT -PALMAR CUTANEOUS BRANCH PASSES SUPERFICIAL TO FLEXOR RETINACULUM -PASSES THROUGH CARPAL TUNNEL -IN PALM, DIVIDES INTO LATERAL & MEDIAL DIVISIONS. LATERAL DIVISION GIVES RECURRENT BRANCH & MEDIAL DIVISION GIVES 2 PALMAR DIGITAL NERVES.
  4. 4. ULNAR C7, C8 & -MEDIAL -IN AXILLA, LIES BETWEEN AXILLARY -SKIN OVER -FCU & MEDIAL -INJURY AT T1 CORD OF ARTERY & VEIN HYPOTHENAR HALF OF FDP ELBOW LEADS TONERVE BRACHIAL -AT THE LEVEL OF INSERTION OF EMINENCE -ALL INTRINSIC CUBITAL TUNNEL(MUSICIAN’S PLEXUS & CORACO BRACHIALIS, IT PIERCES MEDIAL -SKIN OVER MUSCLES OF HAND SYNDROME,NERVE) VENTRAL INTERMUSCULAR SEPTUM & ENTERS MEDIAL THIRD OF EXCEPT THE 5 VALGUS RAMUS OF POSTERIOR COMPARTMENT OF ARM DORSUM OF MUSCLES DEFORMITY OF C7 -RUNS DOWNWARDS TO BACK OF HAND & MEDIAL SUPPLIED BY ELBOW MEDIAL EPICONDYLE OF HUMERUS 1 AND HALF MEDIAN NERVE -INJURY AT WRIST -PASSES THROUGH FLOOR OF CUBITAL FINGERS OCCURS AT TUNNEL -SKIN ON GUYON’S CANAL -ENTERS FOREARM BY PASSING PALMAR LEADING TO BETWEEN 2 HEADS OF FCU SURFACE OF ULNAR PARADOX -IN LOWER TWO THIRD OF FOREARM, MEDIAL 1 AND -MAIN SYMPTOM BECOMES SUPERFICIAL & RUNS HALF FINGERS OF ANY INJURY TO TOGETHER WITH ULNAR ARTERY ON ITS ULNAR NERVE IS MEDIAL SIDE CLAW HAND -BRANCHES AT FOREARM: MUSCULAR DEFORMITY BRANCHES TO FCU, FDP; PALMAR -POSITIVE CUTANEOUS BRANCH & DORSAL FORMENT’S SIGN CUTANEOUS BRANCH -ENTERS PALM BY PASSING THROUGH ULNAR TUNNEL, SUPERFICIAL TO FLEXOR RETINACULUM -SUPERFICIAL & DEEP TERMINAL BRANCHES -DEEP TERMINAL BRANCH ENTERS GUYON’S CANAL & ENDS IN ADDUCTOR POLLICIS

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