10-29-09A - Fingers Joints • Intercarpal joints of the...

Info iconThis preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Fingers Joints • Intercarpal joints of the wrist and carpometacarpal (CMC) joint of the fingers • Metacarpal phalangeal (MCP) joint of the fingers • Proximal interphalangeal (P IP) and distal interphalangeal (D IP) joints of the fingers Joints of the Fingers Intercarpal joints of the wrist and carpometacarpal (CMC) joint of the fingers • Classification : diarthrodial, gliding, arthrodial, nonaxial • Articulating surfaces : adjacent carpal bones; distal row of carpal bones with the bases of the corresponding metacarpals (MC) • Degrees of freedom of motion : zero or infinite • Motions : slight wrist flexion/extension o Slight radial deviation/ulnar deviation • Comments : There is little motion at each joint, but there are many joints. The intercarpal joints add to the wrist motion. The intercarpal joints produce little motion Joints of the fingers Metacarpal phalangeal (MCP) joint of the fingers • Classification : diarthrodial, condyloid, oval, axial • Articulating surfaces : head of the corresponding MC with the base of the corresponding proximal phalanges • Degrees of freedom of motion : 2 • Motions : MCP flexion/extension o MCP abduction/adduction • Comments : Abduction is limited by the soft tissue between the fingers o The 3 rd finger , or middle finger is the midline of the hand so it doesn’t abduct Joints of the Fingers Proximal interphalangeal (PIP) and distal interphalangeal (DIP) joints of the fingers • Classification : diarthrodial, ginglymus, hinge, axial • Articulating surfaces : PIP – head of the proximal phalanx with the base of themiddle phalanx; DIP – head of the middle phalanx with the base of the distal phalanx • Degrees of freedom of motion : 1 • Motions : PIP and DIP flexion/extension • Comments: none Muscles of the Fingers The fingers are supplied by • extrinsic muscles – muscles with the bellies in the forearm and • intrinsic muscles – muscles with the bellies in the hand Flexor Digitorum superfi...
View Full Document

This note was uploaded on 02/11/2010 for the course AHS 234 taught by Professor Bial during the Fall '09 term at Nassau CC.

Page1 / 65

10-29-09A - Fingers Joints • Intercarpal joints of the...

This preview shows document pages 1 - 14. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online