Page 328 - Kinesiology of the musculoskeletal system foundations for physical rehabilitation
P. 328
304 Section II Upper Extremity Lateral two: lateral sides of the flexor digitorum profundus
tendons of the middle and index fingers
Adductor Pollicis
Proximal attachments: Distal attachment: lateral margin of the extensor mechanism
Oblique head: capitate bone, base of the second and third via the oblique fibers of the dorsal hood
metacarpal, and adjacent capsular ligaments of the carpo- Innervation:
metacarpal joints Medial two: ulnar nerve
Transverse head: palmar surface of the third metacarpal Lateral two: median nerve
Distal attachments: both heads attach on the ulnar side of the
base of the proximal phalanx of the thumb and to the Opponens Digiti Minimi
medial sesamoid bone at the metacarpophalangeal joint; Proximal attachments: transverse carpal ligament and hook of
also attaches into the extensor mechanism of the thumb
Innervation: ulnar nerve the hamate
Distal attachment: ulnar surface of the shaft of the fifth
Dorsal Interossei
Proximal attachments: metacarpal
First: adjacent sides of the first (thumb) and second Innervation: ulnar nerve
metacarpal Opponens Pollicis
Second: adjacent sides of the second and third metacarpal Proximal attachments: transverse carpal ligament and palmar
Third: adjacent sides of the third and fourth metacarpal
Fourth: adjacent sides of the fourth and fifth metacarpal tubercle of the trapezium
Distal attachments: Distal attachment: radial surface of the shaft of the thumb
First: radial sides of the oblique fibers of the dorsal hood and
metacarpal
base of the proximal phalanx of the index finger Innervation: median nerve
Second: radial sides of the oblique fibers of the dorsal hood
Palmaris Brevis
and base of the proximal phalanx of the middle finger Proximal attachments: transverse carpal ligament and palmar
Third: ulnar sides of the oblique fibers of the dorsal hood
fascia just distal and lateral to the pisiform bone
and base of the proximal phalanx of the middle finger Distal attachment: skin on the ulnar border of the hand
Fourth: ulnar sides of the oblique fibers of the dorsal hood Innervation: ulnar nerve
and base of the proximal phalanx of the ring finger Palmar Interossei
Innervation: ulnar nerve Proximal attachments:
First: ulnar side of the thumb metacarpal
Flexor Digiti Minimi Second: ulnar side of the second metacarpal
Proximal attachments: transverse carpal ligament and hook of Third: radial side of the fourth metacarpal
Fourth: radial side of the fifth metacarpal
the hamate Distal attachments:
Distal attachment: ulnar side of the base of the proximal First: ulnar side of the proximal phalanx of the thumb, blend-
phalanx of the little finger ing with the adductor pollicis; also attaches to the medial
Innervation: ulnar nerve sesamoid bone at the metacarpophalangeal joint
Second: ulnar sides of the oblique fibers of the dorsal hood
Flexor Pollicis Brevis and base of the proximal phalanx of the index finger
Proximal attachments: transverse carpal ligament and palmar Third: radial sides of the oblique fibers of the dorsal hood
and base of the proximal phalanx of the ring finger
tubercle of the trapezium Fourth: radial sides of the oblique fibers of the dorsal hood
Distal attachments: radial side of the base of the proximal and base of the proximal phalanx of the small finger
Innervation: ulnar nerve
phalanx of the thumb; also to the lateral sesamoid bone
at the metacarpophalangeal joint
Innervation: median nerve
Lumbricals
Proximal attachments:
Medial two: adjacent sides of the flexor digitorum profundus
tendons of the little, ring, and middle fingers
