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chapter 13

The Hand

Arches of the palm (cupped position) Proximal carpal arch Distal Carpal Arch Longitudinal Arch
Extensor Hood is known as Extensor Expansion Ligament
Extrinsic Muscles of the Hand- primary function is at thumb or finger Flexor Digitorum Superficiallis/Profundus Flexor pollicies Longus Abductor Pollicis Longus Extensor pollicis Longus/Brevis Extensor Digitorium Extensor Indicis Extensor DIgiti Mininmi
Extensor digitorum blends in and keeps the extensor tendon in the midline
Carpal Tunnel Transverse Carpal Ligament
Anatomical SnuffBox Abbductor pollicis longus Extensor pollicis brevis Extensor Pollicis Longus
Flexor Digitorum Superficialis Divides into 4 tendons as it crosses the wrist then each splits into 2 parts
Flexor Digitorum Profundus Splits into 4 tendons as it crosses the wrist (only muscle to flex the DIP Joints)
Intrinsic Muscles responsible for fine motor control Thenar and Hypothenar
Thenar muscle form thenar eminence=moves thumb F lexor Pollicis Brevis A bductor Pollicis Brevis O pponens Pollicis
Hypothenar form hypothenar eminence=works primarily on pinkie F lexor Digiti Minimi A bductor Digiti Minimi O pponens Digiti Minimi
Deep Palm Muscles A dductor Pollicis I nterossei L umbricales
Table Top finger aka Lumbricales
Power GRips Cynlindrical grip Spherical Grip Hook Grip
Precision Grips Pad to Pad Grip Pinch Grip Three-Jaw Chuck Tip to Tip Grip Pincer Grip Pad-to-side Grip Side-to-side Grip Lumbrical Grip or Plate Grip
power grip examples hammer, door knob
precision examples needle
Pinch Grip coin with two fingers
Tripod Grip or Three Jaw Grip Pencil or Pen
Side to Side Cigarette
Pad to side grip key to lock
Lumbrical Grip Holding plate
De Quervains Disease Inflammation and thickening of sheath resulting in pain on the radial side of wrist
Tenosynovitis inflammation of tendons and surrounding sheaths
Dupuytren's Contracture palmar aponeurosis undergoes a nodula thickening
Stenosing Tenosynovitis (trigger finger) problem with sliding tendon and sheath
Skiers Thumb common hand injury among athletes involve an acute tear of the ulnar collateral ligament of thumb
Gamekeepers Thumb stretching injury of the same ligament
schaphoid fracture fall on the outstretched hand of a younger person
Kienbocks disease necrosis of the lunate, may develop after trauma
Created by: 1429214543799106