Download MUSCLES OF THE HAND

MUSCLES OF THE HAND
THE HAND IS THE PART OF THE UPPER
EXTREMITY DISTAL TO THE WRIST
INTRINSIC MUSCLES OF THE HAND:
MANY SMALL MUSCLES WITHIN THE HAND,
ALLOW FOR MANUAL DEXTERITY (PRECISE
MOVEMENTS)
DIVIDED INTO 3 GROUPS:
THENAR - THE THUMB
HYPOTHENAR - THE LITTLE FINGER
MIDPALMER - MIDDLE OF THE HAND
INNERVATED BY THE MEDIAN AND
ULNAR NERVES
THENAR MUSCLES (POLLEX): FORM THE
THENAR EMINENCE OF THE LATERAL SIDE
OF THE PALM, ROUNDED MUSCULAR AREA
THENAR EMINENCE FORMED BY 3
MUSCLES:
ABDUCTOR POLLICIS BREVIS
FLEXOR POLLICIS BREVIS
OPPONENS POLLICIS
MOVES THUMB BUT NOT PART OF THENAR
EMINENCE - ADDUCTOR POLLICIS
THENAR
EMINANCE
ABDUCTOR
POLLICIS BREVIS
(MOVES THUMB
FORWARD IN
SAGGITAL PLANE)
FORMS LATERAL
EDGE OF THE
THENAR EMINENCE
MEDIAN NERVE
FLEXOR POLLICIS
BREVIS
LOCATED MEDIAL TO
THE ABDUCTOR,
SOMETIMES
DIFFICULT TO
SEPARATE
MEDIAN NERVE
OPPONENS
POLLICIS
LOCATED DEEP TO
THE ABDUCTOR
AND THE FLEXOR
INSERTS ALONG
LATERAL BORDER
OF THE 1ST
METACARPAL
OPPOSES THE
THUMB, MOVES
THE THUMB
ACROSS THE PALM
TO MEET THE
LITTLE FINGER
MEDIAN NERVE
ADDUCTOR POLLICIS
DEEPLY PLACED IN
THE HAND
FILLS IN THE WEB
SPACE ON THE
PALMER SIDE OF
THE HAND
ADDUCTS THE
THUMB
ULNAR NERVE
OPPONENS
POLLICIS
INNERVATION?
MEDIAN
NERVE
ULNAR
NERVE
ABDUCTOR
POLLICIS
BREVIS
FLEXOR
POLLICIS
PREVIS
ADDUCTOR
POLLICIS
HYPOTHENAR MUSCLES - FORM THE
HYPOTHENAR EMINENCE ON THE MEDIAL
SIDE OF THE PALM
ABDUCTOR DIGITI MINIMI
FLEXOR DIGIT MINIMI BREVIS
OPPONENS DIGITI MINIMI
HYPOTHENAR
EMINANCE
ABDUCTOR DIGITI
MINIMI
MOST MEDIAL
MUSCLE IN THE
HYPOTHENAR
EMINENCE, FORMS
ROUNDED
CONTOUR ON
MEDIAL SIDE OF
HAND
ABDUCT LITTLE
FINGER
ULNAR NERVE
FLEXOR DIGITI
MINIMI BREVIS
LOCATED LATERAL
TO THE ABDUCTOR,
OFTEN
INDISTINGUISHABLE
FROM THE
ABDUCTOR
FLEXES THE LITTLE
FINGER
ULNAR NERVE
OPPONENS DIGITI
MINIMI
LIES DEEP TO THE
ABDUCTOR AND THE
FLEXOR
INSERTS ALONG
MEDIAL BORDER OF
THE 5TH METACARPAL
HELPS TO BRING THE
LITTLE FINGER TO
MEET THE THUMB
ULNAR NERVE
ABDUCTOR
DIGITI MINIMI
& FLEXOR
DIGITI MINIMI
BREVIS
OPPONENS
DIGITI
MINIMI
MIDPALMER MUSCLES - LUMBRICLES
AND INTEROSSEI
LUMBRICLES:
FLEX THE MPJ
(METACARPOPHALANGEAL JOINT)
AND EXTEND THE IPJ
(INTERPHALANGEAL JOINT)
“BYE-BYE MUSCLES”
INTEROSSEI:
ABDUCT AND ADDUCT THE FINGERS
LUMBRICLES
4 MUSCLES,
NUMBERED 1-4
LATERAL TO MEDIAL
ATTACH TO THE
TENDONS OF THE
FLEXOR DIGITORUM
PROFUNDUS MUSCLE
PASS TO INSERT INTO
THE EXPANSION HOOD
ON THE DORSUM OF
THE DIGITS
1 & 2 MEDIAN NERVE
3 & 4 ULNAR NERVE
INTEROSSEI
LOCATED BETWEEN METACARPALS,
BETWEEN BONES (OSSEOUS) THEREFORE
THE NAME
DIVIDED INTO DORSAL AND PALMER
BOTH CAN BE SEEN FROM THE PALMER
ASPECT
THEIR ACTION IS IN REFERENCE TO THE
THIRD DIGIT OF THE HAND, THIS IS THE
AXIS FOR MOVEMENT
MOVING AWAY FROM THE AXIS IS
ABDUCTION
MOVING TOWARD THE AXIS IS ADDUCTION
ALL ARE INNERVATED BY THE ULNAR
NERVE
PALMER INTEROSSEI
BRING THE FINGERS
CLOSER TOGETHER,
ADDUCTORS,
TOWARD THE
MIDLINE OR AXIS
PAD
3 PALMER
INTEROSSEI
DORSAL INTEROSSEI
MOVE FINGERS AWAY
FORM THE MIDLINE,
AWAY FORM THE
AXIS
ABDUCTORS
DAB
4 DORSAL
INTEROSSEI
2 INSERT INTO THE
THIRD FINGER
WHAT’S
THE
NAME OF
THESE
MUSCLE?
ACTION?
INNERVATION?
WHAT’S THE
NAME OF
THESE
MUSCLES?
WHAT’S THE
NAME OF
THESE
MUSCLES?
PALMAR INTEROSSEI
ADDUCT
FIRST DORSAL
INTEROSSEOUS
ABDUCTOR
DIGITI MINIMI
WHAT’S
THE NAME
OF THESE
MUSCLE?
WHAT’S
THE NAME
OF THESE
MUSCLE?
DORSAL INTEROSSEI
ABDUCT
CARPAL TUNNEL SYNDROME
RESULTS FROM A REDUCTION IN THE SIZE OF
THE CARPAL TUNNEL
MEDIAN NERVE:
SENSORY LOSS OR TINGLING OVER
LATERAL 3 DIGITS
MOTOR LOSS TO THE THENAR MUSCLES
EXCEPT ADDUCTOR, UNABLE TO OPPOSE THE
THUMB
RELIEVE SYMPTOMS BY PARTIAL OR
COMPLETE DIVISION OF THE FLEXOR
RETINACULUM
FLEXOR
RETINACULUM
CUT
CARPAL TUNNEL
FLEXOR
RETINACULUM
CARPAL TUNNEL
MEDIAN NERVE
ULNAR
NERVE