Hand Anatomy Mcp
There are five separate metacarpophalangeal joints that connect each metacarpal bone to the corresponding proximal phalanx of each finger.
Hand anatomy mcp. The hand also must be coordinated to perform fine motor tasks with precision. Superficialis tendons which pass through the palm side of the wrist and hand and attach at the bases of the middle phalanges.
In addition to reading this article be sure to watch our hand anatomy animated tutorial video. These wrist bones are attached to the radius and ulna of the forearm to form the wrist joint.
Mp joints are important for both power grip and pinch activities and are where the fingers move with respect to the hand. The wrist is comprised of 8 carpal bones.
This guide will help you understand. Similarly to the pip and mcp joints of the finger the mcp joint of the thumb is stabilized by the volar plate collateral ligaments and musculotendinous.
They act with the profundus tendons to flex the wrist and mcp and pip joints. It is important to understand the normal anatomy of the hand to learn more about diseases and conditions that can affect our hands.
Each metacarpophalangeal joint is formed by the. Hand and wrist anatomy.
The joint serves as the transition between the palm and the fingers. Anatomy of the mcp joint of the thumb the mcp joint of the thumb is a condylar type articulation that allows motion primarily in the flexion extension axis and also some degree of rotation.
The metacarpophalangeal mcp joint is a diarthrodial joint where the large convex head of the distal aspect of the metacarpal articulates with the concave shaped proximal aspect of the phalange. They diverge in the palm where two go to each finger one attaches at the dp and one at the mcp and one goes to the thumb.
Metacarpophalangeal joint articulationes metacarpophalangeae the metacarpophalangeal joints mcp are a collection of condyloid joints that connect the metacarpus or palm of the hand to the fingers. A single hand bone is called a phalanx.
The structures that form and move the hand require proper alignment and control in order for normal hand function to occur. These joints are of the condyloid kind formed by the reception of the rounded heads of the metacarpal bones into shallow cavities on the proximal ends of the proximal phalanges.
The different joints of the hand are shown in figure 1. Mcp joint arthritis is most common in the thumb and index fingers due to the stress of pinching.
The hand and wrist are made up of many different bones muscles and ligaments that enable a wide range of movements. Metacarpophalangeal joint mcp joint the mp joint is where the hand bone called the metacarpal meets the finger bones called the phalanges.
Being condyloid they allow the movements of flexion extension abduction adduction and. Arthritis means joint inflammation and is a word that is often used to describe pain or a problem at a joint.
Externally the mcp joint is seen as the knuckle in layman s terms which is the prominent metacarpal head. They connect to 5 metacarpal bones that form the palm of the hand.
