Fingers are what type of joints

The thumb metacarpal can bend and extend the thumb, move the thumb away from and toward the hand, and spin the thumb on the trapezium.

Two very important ligaments are the dorsoradial and the volar beak ligaments. The abductor pollicis longus and brevis help move the thumb away from the hand.

The adductor pollicis helps move the thumb toward the hand. The thumb CMC joint is one of the most common areas in the hand and wrist to develop arthritis. Surgical treatment for arthritis of the joint often includes removal of the trapezium or resurfacing of the joint. Learn about thumb arthritis. Common problems at this joint include Mallet Finger , Jersey Finger, arthritis, mucous cysts, and fractures. The PIP joint can bend and extend the finger.

It becomes stiff easily after injury. Metacarpophalangeal Joint MCP joint The MP joint is where the hand bone called the metacarpal meets the finger bones called the phalanges.

A single hand bone is called a phalanx. MP joints are important for both power grip and pinch activities; they are where the fingers move with respect to the hand. The MP joints allows you to bend and flex your fingers, spread your fingers, and bring the fingers together. You can spread your fingers more more easily when they are straightened rather than bent because the collateral ligaments are loose when the finger is extended. Common problems at the MCP joint include arthritis and collateral ligament injuries.

Injuries and problems with this joint are uncommon. Occasionally, joint pain can be caused by a CMC boss. The DIP joint in the finger is located at the tip of the finger, just before the finger nail starts. The middle finger MCP joint is the most common finger it can happen to any finger to have a radial sagittal band injury. This results in the extensor tendon snapping to the pinky side of the hand. The ring finger CMC joint has much more motion than the index or middle fingers.

This permits the hand to change its shape and adapt to grasping objects of different size and shape. Because this joint is more mobile, it is more common to have a fracture or dislocation of this joint. CMC bossing does not typically occur at this joint.

The small finger CMC joint has the most motion of any finger joint, with the exception of the thumb. This makes the hand more flexible.

Because this joint is more mobile it is more common to have a fracture or dislocation, particularly when you hit a hard object. CMC bossing is a problem that does not typically occur at this joint. The radiocarpal joint consists of the radius, one of the forearm bones, and the first row of wrist bones consisting of the scaphoid, lunate, and triquetrum. There is also a fourth bone in the first row of wrist bones called the pisiform, but it does not connect to either the radius or ulna.

Wrist fractures that involve the joint surface are common wrist injuries. One of the most common ligaments involved in a wrist sprain is the scapholunate ligament. These joints allow for flexion and extension. Major hinge joints include the elbow and finger joints. Hinge joints, such as in the fingers, knees, elbows, and toes, allow only bending and straightening movements. Pivot joints. Pivot joints, such as the neck joints, allow limited rotating movements. The primary places in the human body that you will find gliding joints are in the ankles, wrist, and spine.

The PIP joint is the first joint of the finger and is located between the first two bones of the finger. To learn more about the thumb joints and more about the finger joints, visit our online Anatomy section.

The small, ringer, middle and index fingers all have the same four joints: Distal Interphalangeal Joint DIP : The DIP joint is located at the tip of the finger, just before the finger nail starts.

Arthritis can develop at this joint, and it is also commonly fractured. It is located below the top two bones of the finger and allows the finger to bend and extend. This joint can become stiff easily after injury.