What types of joints are in the hand?
What types of joints are in the 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 |
What are the 3 arches of the hand?
The hollow cavity has been described as consisting of three arches that run in different directions: transverse, longitudinal and oblique, spanning the anterior surface of the hand. Although described anatomically, the modulation in the palmar arches has not been investigated kinematically during actual grasping.
What are MCP and PIP joints?
The joints involved most frequently are the proximal interphalangeal (PIP) and metacarpophalangeal (MCP) joints of the hands, the wrists, and small joints of the feet including the metatarsophalangeal (MTP) joints. The shoulders, elbows, knees, and ankles are also affected in many patients.
What are the joints in your thumb called?
The three joints are as follows: Carpometacarpal (CMC) Joint. Metacarpophalangeal (MP) Joint. Interphalangeal (IP) Joint.
Is wrist part of hand?
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 …
What is a swan neck?
Swan-neck deformity is a bending in (flexion) of the base of the finger, a straightening out (extension) of the middle joint, and a bending in (flexion) of the outermost joint.
What does osteoarthritis in hands feel like?
The most common symptoms are pain and stiffness. Over time, they may get worse. The pain might become constant and sharper, and the stiffness could keep you from bending your finger joints all the way.
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.
What is the wrist bone called?
carpal bones
Your wrist is made up of eight small bones (carpal bones) plus two long bones in your forearm — the radius and the ulna. The most commonly injured carpal bone is the scaphoid bone, located near the base of your thumb.
What is the anatomy of the hand?
The anatomy of the hand consists of various features on the surface and interior of the hand. This includes bones, joints, nerves, and tendons. Individual aspects of the anatomy of the hand, such as the fingertips, also have specific structures worth noting when discussing the anatomy of the hand.
What is the anatomy of the thumb?
The skeleton of the thumb consists of the first metacarpal bone which articulates proximally with the carpus at the carpometacarpal joint and distally with the proximal phalanx at the metacarpophalangeal joint. This latter bone articulates with the distal phalanx at the interphalangeal joint.
What is the anatomy of the middle finger?
The middle finger is connected to the palm of the hand and attached to a bone in the palm known as the metacarpal bone. The middle finger is composed of three bones called phalanges and two muscle groups identified as extrinsic and intrinsic. The extrinsic muscles allow the finger to flex or extend.
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…