What is the wrist also called?
What is the wrist also called?
carpus
wrist, also called carpus, complex joint between the five metacarpal bones of the hand and the radius and ulna bones of the forearm. The wrist is composed of eight or nine small, short bones (carpal bones) roughly arranged in two rows.
What are the joints in the wrist?
There are three joints in the wrist:
- Radiocarpal joint: This joint is where the radius, one of the forearm bones, joins with the first row of wrist bones (scaphoid, lunate, and triquetrum).
- Ulnocarpal joint: This joint is where the ulna, one of the forearm bones, joins with the lunate and triquetrum wrist bones.
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) |
What is Radiocarpal?
The radiocarpal joint is a synovial joint formed by the articulation between the distal radius and the scaphoid, lunate, and triquetrum as well as the soft tissue structures that hold the joint together.
What is another name for the wrist 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.
Where is the metacarpus?
hand
In humans the five metacarpals are flat at the back of the hand and bowed on the palmar side; they form a longitudinal arch that accommodates the muscles, tendons, and nerves of the palm. The metacarpals also form a transverse arch that allows the fingertips and thumb to be brought together for manipulation.
What is the elbow joint called?
Hinge joint
The elbow joint is classified structurally as a synovial joint. It is also classified structurally as a compound joint, as there are two articulations in the joint. Synovial joints, also called diarthroses, are free movable joints….Elbow joint.
| Type | Hinge joint |
|---|---|
| Clinical | Fractures, epicondylitis, arthritis, venipunctures |
What is the thumb joint called?
The thumb basal joint, also known as the carpometacarpal (CMC) joint, is a specialized saddle-shaped joint that is formed by a small wrist bone (trapezium) and the first of the three bones in the thumb (metacarpal).
What is an MP joint?
The large joints in the hand at the base of each finger are known as the metacarpophalangeal (MP, or MCP) joints. They act as complex hinge joints and are important for both power grip and pinch activities.
What is carpometacarpal joint?
The carpometacarpal joints of the fingers are synovial plane joints that serve as the articulation between the carpals and the metacarpals and allow the bases of the metacarpal bones to articulate with one another.
What is radiocarpal joint space?
Location. The joint occurs proximally between the concave surface of the distal end of the radius and the articular disc of the distal radioulnar joint, and distally by the oval shaped convex surface of the proximal carpal row (the scaphoid, lunate and triquetral bones).
What is the antonym of wrist?
The word wrist refers to the connecting joint between the hand and forearm. There are no categorical antonyms for this word.
Where is the radial nerve located on the wrist?
The radial nerve is on the radial, or thumb side of the wrist joint. It provides feeling to the back of the hand from the thumb to the middle finger. The median nerve is responsible for the development of carpal tunnel syndrome.
What are the nerves that pass through the forearm?
Three nerves pass from the forearm, across the wrist, and into the hand. These are: The radial nerve is on the radial, or thumb side of the wrist joint. It provides feeling to the back of the hand from the thumb to the middle finger.
What connects the wrist to the hand?
The wrist connects the forearm to the hand. It consists of 8 carpal bones, multiple joints, and various supporting ligaments, as well as the distal bones of the forearm and the proximal portion of the 5 metacarpal bones of the hand.
What are the ligaments in the wrist joint?
There are four ligaments of note in the wrist joint, one for each side of the joint. Palmar radiocarpal – It is found on the palmar (anterior) side of the hand. It passes from the radius to both rows of carpal bones. Its function, apart from increasing stability, is to ensure that the hand follows the forearm during supination.
