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UPPER EXTREMITY-2. DR VINIT K ASHOK ADJUNCT FACULTY. BLOOD SUPPLY. ARTERIAL SUPPLY -SUBCLAVIAN ARTERY(NECK) - AXILLARY ARTERY( UPPER ARM;UPTO LOWER BORDER OF TERES MAJOR) BRACHIAL ARTERY(LOWER PART OF ARM) RADIAL ARTERY( LATERAL) ULNAR ARTERY( MEDIAL),COMMON INTEROSSEOUS PALMAR ARCHES
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UPPER EXTREMITY-2 DR VINIT K ASHOK ADJUNCT FACULTY
BLOOD SUPPLY • ARTERIAL SUPPLY • -SUBCLAVIAN ARTERY(NECK) • - AXILLARY ARTERY( UPPER ARM;UPTO LOWER BORDER OF TERES MAJOR) • BRACHIAL ARTERY(LOWER PART OF ARM) • RADIAL ARTERY( LATERAL) • ULNAR ARTERY( MEDIAL),COMMON INTEROSSEOUS • PALMAR ARCHES • DIGITAL
VEINS OF UPPER LIMB • SUPERFICIAL VEINS • DORSAL VENOUS NETWORK • CEPHALIC VEIN • BASILIC VEIN • AXILLARY VEIN( BASILIC+ BRACHIAL VEIN) • MEDIAN CUBITAL VEIN • MEDIAN VEIN OF FOREARM • DEEP VEINS • NAMED ACCORDING TO COMPANIAN ARTERIES • RADIAL VEIN • ULNAR VEIN • BRACHIAL VEIN • AXILLARY VEIN
ACROMION CLAVICLE DELTOID ( IM INJECTIONS) HUMERUS BICEPS MUSCLE BICIPTAL GROOVE BRACHILA PULSE( BLOOD PRESSURE) TRICEPS OLECRNON PROCESS( PT OF THE ELBOW) MEDIAL /LATERAL EPICONDYLES TRIANGLE CUBITAL FOSSA MEDIAN CUBITAL VEIN- IV CEPHALIC VEIN ULNA RADIUS STYLOID PROCESS RADIAL ARTERY( PULSE) ULNAR ARTERY ANATOMICAL SNUFF BOX THENAR EMINENC HYPOTHENAR EMINENCE CARPAL TUNNEL SURFACE ANATOMY
AXILLA( ARMPIT) • PYRAMIDAL SPACE BETWEEN THE UPPER LATERAL CHEST AND THE INNERSIDE OF THE ARM • BOUNDARIES -APEX –( BETWEEN THE CLAVICLE,SCAPULA AND 1ST RIB) -BASE-(AXILLARY FASCIA) -ANTERIOR ( PECTORALIS MAJOR AND MINOR MUSCLES) -POSTERIOR( SUBSCAPULARIS,LATISSIMUS DORSI AND TERES MAJOR) MEDIAL- ( FIRST 4 RIBS AND SERRATUS ANTERIOR MUSCLE) LATERAL-( BICEPETAL GROOVE OF THE HUMERUS) • CONTENTS -AXILLARY LYMPH NODES -AXILLARY ARTERY /VEIN -BRACHIAL PLEXUS
BRACHIAL PLEXUS • PLEXUS- IS A NETWORK OF NERVES • BRACHIAL PLEXUS- • FOUND IN THE NECK AND AXILLA • FORMED BY VENTRAL RAMI OF C5- C8 AND T1 ( THERE MAY BE CONTRIBUTIONS FROM C4, T2) • GIVES RISE TO NERVES THAT SUPPLY THE UPPER LIMB • FORMATION • ROOTS- C5-C8 AND TI( VENTRAL RAMI) • TRUNKS-UPPER , MIDDLE, LOWER • DIVISONS-ANTERIOR/POSTERIOR • CORDS-MEDIAL/LATERAL/POSTERIOR • ROOTS FORMATION OF TRUNKS • C5 • C6 • C7 • C8 • T1 UPPER MIDDLE LOWER FORMED IN THE NECK
DIVISIONS AND CORDS OF BRACHIAL PLEXUS • TRUNKS DIVISIONS CORDS • UPPER TRUNK • MIDDLE TRUNK • LOWER TRUNK PINK-ANTERIOR DIVISION BLUE -POSTERIOR DIVISION LATERAL CORD-ANTERIOR DIVISIONS OF UPPER AND MIDDLE TRUNK POSTERIOR CORD-POSTERIOR DIVISIONS OF ALL TRUNKS MEDIAL CORD-ANTERIOR DIVISION OF LOWER TRUNK CORDS ARE NAMED ACCORDING TO THEIR RELATIVE POSITIONS TO THE AXILLARY ARTERY
NERVES ARISING FROM THE CORDS • MEDIAL CORD • MEDIAL CUTANEOUS NERVE OF ARM- CUTANEOUS SUPPLY TO SKIN • MEDIAL CUTANEOUS NERVE OF FOREARM-CUTANEOUS SUPPLY TO THE SKIN • MEDIAL ROOT OF MEDIAL NERVE- JOINS WITH LATERAL ROOT TO FORM MEDIAN NERVE • ULNAR NERVE • MEDIAL PECTORAL NERVE • LATERAL CORD • LATERAL ROOT OF MEDIAN NERVE • MUSCULOCUTANEOUS NERVE • LATERAL PECTORAL NERVE
NERVES FROM THE POSTERIOR CORD • 1. UPPER SUBSCAPULAR NERVE • 2.LOWER SUBSCAPULAR NERVE • 3.THORACODORSAL NERVE • 4. RADIAL NERVE • 5. AXILLARY NERVE
IMPORTANT NERVES AND AREA OF SUPPLY • 1. MEDIAN NERVE( FORMED FROM BOTH MEDIAL AND LATERAL CORD)- • A) SUPPLIES ALL THE FLEXORS OF THE FOREARM( EXCEPT FLEXOR CARPI ULNARIS AND MEDIAL HALF OF FDP) • B) INTRINSIC MUSCLES IN THE LATERAL PALM INCLUDING THENAR EMINENCE) • 2. ULNAR NERVE • A) SUPPLIES THE MEDIAL HALF OF FDP AND THE FLEXOR CARPI ULNARIS • B) SUPPLIES MOST OF THE INTRINSIC MUSCLES OF THE HAND INCLUDING THE HYPOTHENAR EMINENCE, AND SKIN ON THE MEDIAL SIDE OF THE HAND • CLINICAL APPLICATION • *INJURY TO MEDIAN NERVE-” APE HAND” • INJURY TO ULNAR NERVE-” CLAW HAND”
INPORTANT NERVES AND THEIR AREA OF SUPPLY • MUSCULOCUTANEOUS NERVE • SUPPLIES THE BICEPS, CORACOBRACHIALIS AND BRACHIALIS AXILLARY NERVE • SUPPLIES THE DELTOID AND TERES MINOR MUSCLE • SUPPLIES THE SHOULDER JOINT RADIAL NERVE • SUPPLIES THE TRICEPS • SUPPLIES THE BRACHIORADIALIS • SUPPLIES MOST OF THE EXTENSORS OF THE FOREARM • * INJURY RESULTS IN “ WRIST DROP”
CARPAL TUNNEL • TUNNEL FORMED BETWEEN THE CONCAVITY OF THE CARPAL BONES AND A LIGAMENT THAT COVERS THIS( FLEXOR RETINACULAM) • TENDONS OF THE FLEXORS PASS THROUGH • MEDIAN NERVE ALSO PASSES THROUGH • CROWDED TUNNEL CARPAL TUNNEL SYNDROME • CAUSED DUE TO COMPRESSION OF THE NERVE IN THE TUNNEL • CAUSES- • 1. SWELLING OF THE TEDONS( OVERUSE) • 2. PREGNANCY( EDEMA) • 3. ARTHRITIS SYMPTOMS- TINGLING OR NUMBNESS-LATERAL PART OF HAND, WEAKNESS IN THUMB MOVEMENT TREATMENT- REST, SPLINTING,ANTI-INFLAMMATORY DRUGS, SURGERY
CUBITAL FOSSA • TRIANGULAR DEPRESSION ON THE ANTERIOR ASPECT OF ELBOW BOUNDARIES -BASE- LINE DRAWN BETWEEN THE EPICONDYLES OF THE HUMERUS LATERAL BOUNDARY-BRACHIORADIALIS MEDIAL BOUNDARY- PRONATOR TERES APEX- WHERE THE MEDIAL AND LATREAL BOUNDARY MEET CONTENTS • MEDIAL CUBITAL VEIN • BRACHIAL ARTERY • TENDON OF THE BICEPS LINE BETWEEN EPICONDYLES PRONATOR TERES BRACHIORADIALIS
CUTANEOUS INNERVATION OF HAND( ANTERIORLY) LATREAL 31/2 FINGERS AND LATERAL PALM – MEDIAN NERVE MEDIAL 11/2 FINGERS AND MEDIAL PALM- ULNAR NERVE
CUTANEOUS NERVE SUPPLY HAND ( POSTERIORLY) MEDIAL 11/2 FINGERS AND HAND- ULNAR NERVE TIPS OF FINGERS LATERAL 31/2 FINGERS- MEDIAN NERVE REST OF LATERAL 31/2 FINGERS AND HAND - RADIAL NERVE