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The Wrist - Coggle Diagram
The Wrist
Anatomical Structures
Guyon's Canal
Contents
Ulnar Nerve
Ulnar Artery
Borders
Pisiform
Hamate
Flexor Retinaculum
Palmar Carpal Ligament
Carpal Tunnel
Contents
Median Nerve
FPL Tendon
FDP Tendon
FDS Tendon
Borders
Carpal bones
Palmar Carpal Ligament
Extensor Sheaths
Sheath 3
EPL (crosses sheath 2 distally)
Sheath 4
ED
EI
Sheath 2
ECRL
ECRB
Sheath 5
EDM
Sheath 1
EPB
APL
Sheath 6
ECU
Neurovascular Structures
Nerves
Median
Radial
Ulnar
Arteries
Radial
Ulnar
Veins
Median Antebrachial
Basilic
Cephalic
Ulnar
Radial
Carpal Bones
Proximal Row
Lunate
crescent shape
articulates w radius
Triquetrum
pyramidal
articulates with radioulnar joint disc
Scaphoid
largest carpal
boat-shaped
articulates with radius
Pisiform
pea shape
Distal Row
Trapezoid
articulates with proximal row
Capitate
head shaped
articulates 3rd metacarpal
Trapezium
4 sided
articulates with first and second metacarpals
Hamate
wedge shape
articulates w/ 4th&5th metacarpal
Joints
Distal Radioulnar
Ulnocarpal
Radiocarpal
Intercarpal
Ligaments
Ventral
Palmar Carpal Ligament
Radioulnar
Flexor Retinaculum
Dorsal
Dorsal Intercarpal
Dorsal Radiocarpal
Extensor Rtinaculum
Functional Demands
Flexion
FCU
FCR
Ulnar Deviation/ADD
ECU
FCU
Radial Deviation/ABD
ECRB
ECRL
FCR
Motion occurs at radiocarpal and midcarpal joints
Extension
ECRL
ECRB
ECU
Relevance to PT
Lunate Dislocation
Median Nerve Compression
Avascular Necrosis
Scaphoid and Hamate Fractures
Avascular Necrosis of Radial Artery
Degenerative Arthritis
Carpal Tunnel Syndrome
Median Nerve Neuropathy
Synovial Cysts on Wrist
Painful Wrist Flexion
Median Nerve Compression
Wrist Drop
Radial Nerve Neuropathy
Anatomical Variations
Median Nerve Pathway
Bifurcates in the Carpal Tunnel
18%
Bifurcates Distal to the Carpal Tunnel
75%
Bifurcates Proximal to Carpal Tunnel
6.1%
Trifurcates in Carpal Tunnel (ABNORMAL)
No Significant Gender Differences