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Finger Anatomy Joints

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A digit includes the hand bones but these bones are not separated into individual appendages like a finger. The thumb interphalangeal ip joint is similar to the distal interphalangeal dip joint in the fingers.

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The largest joint of each finger lies between the finger and the hand.

Finger anatomy joints. Interphalangeal joint ip the thumb digit has only two phalanges bones so it only has one joint. This first joint at the base of the finger is called the metacarpophalangeal joint mcp. The index middle ring and fifth digits have proximal middle and distal phalanges and three hinged joints.

Proximal interphalangeal joint pip the joint in the middle of the finger. The small ringer middle and index fingers all have the same four joints. Each of the fingers has three joints.

Metacarpophalangeal joint mcp the joint at the base of the finger. Joints are formed wherever two or more of these bones meet. The finger joints the joints of the fingers include the metacarpophalangeal joints and the interphalangeal joints.

With high resolution 3 t mri the complex anatomy of the fingers can be imaged in exquisite detail to provide an accurate diagnosis of clinically important ligament and tendon injuries. The thumb has a distal and proximal phalanx as well as an interphalangeal and mcp joint. The human finger is mainly a bony structure with multiple joints giving it strength and flexibility.

There are two sets in each finger except in the thumb which has only one joint. The interphalangeal joints of the hand are the hinge joints between the phalanges of the fingers that provide flexion towards the palm of the hand. Distal interphalangeal dip proximal interphalangeal pip and metacarpophalangeal mcp.

We present our 3 t mri protocol using a dedicated hand and wrist coil and review normal mri anatomy of the fingers. Interphalangeal joints of the hand. Anatomy of the fingers.

The first and largest knuckle is the junction between the hand and the fingers the metacarpophalangeal joint mcp. There are four joints in each finger totaling 20 joints in each hand. Distal interphalangeal joint dip the joint closest to the fingertip.

Arthritis can develop at this joint and it is also commonly fractured. Each thumb has two joints. The ip joint in thumb is located at the tip of the finger just before the fingernail starts.

Distal interphalangeal joint dip. Theyre all synovial joints with synovial membranes and fibrous joint capsules. Finger joints knuckles each finger contains 3 joints more commonly known as knuckles.

The knuckles are joints formed by the bones of the fingers and are commonly injured or dislocated with trauma to the hand. Basic anatomy of the finger. The thumb has two knuckle joints.

It works like a hinge when you straighten your fingers and thumb. Instead it is contained within a single structure the hand. The dip joint is located at the tip of the finger just before the finger nail starts.

Proximal interphalangeal joints pij or pip.

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