Hand Anatomy Finger Joints

The thumb has two. To pass your clinical anatomy course you need to know all about these joints that help you move your wrist wave your hand and wiggle your fingers.

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Arthritis can develop at this joint and it is also commonly fractured.

Hand anatomy finger joints. This first joint at the base of the finger is called the metacarpophalangeal joint mcp. Anatomy of the fingers. A digit includes the hand bones but these bones are not separated into individual appendages like a finger.

It works like a hinge when you straighten your fingers and thumb. There are two sets in each finger except in the thumb which has only one joint. The phalanges singular phalanx the 14 narrow bones that make up the fingers of each hand.

The small ringer middle and index fingers all have the same four joints. The middle finger mcp joint is the most common finger it can happen to any finger to have a radial sagittal band injury. Carpometacarpal joint cmc joint the middle finger cmc joint has little motion.

Injuries and problems with this joint are uncommon. This results in the extensor tendon snapping to the pinky side of the hand. Each finger has three phalanges the distal middle and proximal.

Distal interphalangeal joint dip. Finger joints knuckles each finger contains 3 joints more commonly known as knuckles. Metacarpophalangeal joint mcp the joint at the base of the.

Proximal interphalangeal joints pij or pip those between the first also called proximal and second intermediate phalanges. Joints are formed wherever two or more of these bones meet. The knuckles are joints formed by the bones of the fingers and are commonly injured or dislocated with trauma to the hand.

These include carpal tunnel syndrome a painful condition of the hand and fingers caused by compression of the median nerve and dupuytrens contracture a condition in which fingers bend. The dip joint is located at the tip of the finger just before the finger nail starts. The autoimmune disease rheumatoid arthritis can affect the hand particularly the joints of the fingers.

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. The wrist joints the distal radioulnar joint allows you to. This joint commonly is injured in closed fist activities and is commonly known as a boxers fracture.

The largest joint of each finger lies between the finger and the hand. The large number of bones in the hand and wrist makes for a large number of joints too. Some conditions can be treated by hand surgery.

The thumb has two knuckle joints. There are four joints in each finger totaling 20 joints in each hand. The human finger is mainly a bony structure with multiple joints giving it strength and flexibility.

The first and largest knuckle is the junction between the hand and the fingers the metacarpophalangeal joint mcp. Each of the fingers has three joints.

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