Hand Anatomy Joints

The mp joint is where the hand bone called the metacarpal meets the finger bones called the phalanges. Important ligaments of the hand are.

Human Skeleton Bones And Joints Vector Sketch Isolated

Synovial membranes line the inner aspects of the joint capsules and produce synovial fluid to lubricate all the joints.

Hand anatomy joints. Each finger has two interphalangeal joints ips distal dip and proximal pip. Between the hand bones and first finger bones metacarpophalangeal joints hand finger joint there are two interphalangeal joints ip joints on each finger except for the thumb which has one. A single hand bone is called a phalanx.

As there are many small bones and joints in the hand there are also many ligaments within the hand that help to keep the bones together and stabilize the hand. Other stabilizers in the hand include the joint capsules which are also made up of fibrous connective tissue that surround each of the joints. Does that seem confusing.

This cartilage allows our bones to glide smoothly against one another allowing us painless movement. This first joint at the base of the finger is called the metacarpophalangeal joint mcp. The largest joint of each finger lies between the finger and the hand.

There are four joints in each finger totaling 20 joints in each hand. Those are flexion extension abduction and adduction of the hand. A boxers fracture is a common injury of this joint that can occur when a closed fist strikes a person or object.

Joints are cartilage surfaces that connect bones to each other. This complex structure connects the entire hand to the radius and ulna facilitates the passage of tendons together with the above mentioned neurovascular structures from the forearm to the hand and permits us to exploit all its movements. Mp joints are important for both power grip and pinch activities.

The intercarpal joints are synovial joints formed between the individual bones of the proximal row of the carpal bones between the individual bones of the distal row of carpal bones and between the proximal and distal rows the midcarpal joint. They are where the fingers move with respect to the hand. The small ringer middle and index fingers all have the same four joints.

It works like a hinge when you straighten your fingers and thumb. The thumb has only one ip joint. Collateral ligaments strong ligaments on either side of the finger and thumb joints which prevent sideways movement of the joint volar plate a ligament that connects the proximal phalanx to the middle phalanx on the palm side of the joint.

The anatomy of the hand is incomplete without understanding the wrist. The first ip joint between the proximal and intermediate phalanges is known as the proximal interphalageal joint pip joint. The joints of the hand and wrist are named for the bones which they connect.

Between the proximal phalanges and the metacarpals are the knuckles or metacarpophalangeal mcp joints. The thumb has two knuckle joints.

Carpal Tunnel Syndrome Cleveland Clinic