Table of Contents
What are the joints of the wrist and hand?
Joints of the Wrist and Hand
| Joint | Proximal articulation | Type |
|---|---|---|
| Radiocarpal joint | Radius and articular disc/ concave | Ellipsoid |
| Midcarpal joint | Scaphoid. Lunate, Triquetrum | Gliding |
| Carpometacarpal joint (thumb) | trapezium | Saddle |
| Carpometacarpal joint (fingers) | trapezoid, trapezium capitate capitate, hamate hamate | Ellipsoidal |
How many joints are present in the wrist?
These include: articular cartilage, ligaments, muscles and tendons. Articular cartilage is a smooth material that acts as a shock absorber and cushions the ends of bones at each of the 27 joints, allowing smooth movement of the hand.
What type of joint is a carpal joint?
Synovial ellipsoid joint
Radiocarpal joint
| Type | Synovial ellipsoid joint; |
|---|---|
| Articular surfaces | Proximal component – distal end of radius, articular disc Distal component – scaphoid, lunate and triquetral of the proximal row of carpal bones (also includes triangular fibrocartilage complex) |
Why is a wrist important?
Through lifting, gripping, and twisting, the humble wrist makes most of our day-to-day activities possible. Despite the high level of physical demand, our wrists are often taken for granted. Without adequate mobility and strength, they become more vulnerable to injuries and pain.
What is the wrist joint called?
radiocarpal joint
The wrist joint also referred to as the radiocarpal joint is a condyloid synovial joint of the distal upper limb that connects and serves as a transition point between the forearm and hand. A condyloid joint is a modified ball and socket joint that allows for flexion, extension, abduction, and adduction movements.
Is a shoulder a hinge joint?
The elbow and knee joints are both hinge joints. A hinge joint is a type of synovial joint that works like the hinge on a door, allowing bending and straightening only. The shoulder and hip joints are both ball and socket joints.
Is the wrist a synovial joint?
The wrist joint also referred to as the radiocarpal joint is a condyloid synovial joint of the distal upper limb that connects and serves as a transition point between the forearm and hand. A condyloid joint is a modified ball and socket joint that allows for flexion, extension, abduction, and adduction movements.
What causes pain in the wrist joint?
Inflammation of the wrist joint due to arthritis conditions is one cause of wrist pain. Repetitive motion injuries and carpal tunnel syndrome are other common causes. Strains, sprains, broken bones, and other injuries may all cause pain in the wrist joint.
What is the function of the wrist bones?
The vertical movement includes flexion and extension.
What are the parts of the wrist?
In the hand proper a total of 13 bones form part of the wrist: eight carpal bones-scaphoid, lunate, triquetral, pisiform, trapezium, trapezoid, capitate, and hamate-and five metacarpal bones-the first, second, third, fourth, and fifth metacarpal bones.
What is the anatomy of the wrist?
In human anatomy, the wrist is variously defined as 1) the carpus or carpal bones, the complex of eight bones forming the proximal skeletal segment of the hand; (2) the wrist joint or radiocarpal joint, the joint between the radius and the carpus and (3) the anatomical region surrounding the carpus including the distal parts…