What kind of joint is the metacarpal joint? The metacarpophalangeal (MCP) joints are multiaxial condyloid joints capable of flexion, extension, and some lateral motion and circumduction. The cam-shape of the metacarpal heads leads to relaxation
What kind of joint is the metacarpal joint?
The metacarpophalangeal (MCP) joints are multiaxial condyloid joints capable of flexion, extension, and some lateral motion and circumduction. The cam-shape of the metacarpal heads leads to relaxation of the collateral ligaments in extension, permitting adduction and abduction of the finger.
What are your metacarpophalangeal joints?
The metacarpophalangeal (MCP) joints are diarthrodial joints where the large convex heads of the distal aspect of the metacarpals articulate with the concave-shaped proximal aspect of each phalange. Similar to other joints in the body, the MCP joints are acted upon by muscles to allow for specific joint movements.
What are metacarpophalangeal joints formed by?
The metacarpophalangeal joints are of the condyloid kind, formed by the reception of the rounded heads of the metacarpal bones into shallow cavities on the proximal ends of the first phalanges, with the exception of that of the thumb, which presents more of the characters of a ginglymoid joint.
Is the metacarpophalangeal joint a hinge?
The MP joint of the thumb is primarily a hinge joint. Flexion and extension comprise the primary arc of motion. Pronation occurs as the thumb MP joint flexes because the radial condyle of the metacarpal head is wider than the ulnar condyle.
What is the first metacarpal joint?
The first metacarpal bone is associated with the thumb. The joints between the carpals and the metacarpals are known as carpometacarpal joints. The joints between the metacarpals and the proximal phalanges are known a metacarpophalangeal joints. In addition, the bases of the metacarpal bones articulate with each other.
What causes inflammation in the metacarpophalangeal joints?
Causes of Metacarpophalangeal (MCP) Joint Arthritis Inflammation (mainly rheumatoid arthritis) Traumatic injury leading to broken bone or loss of cartilage (Post-traumatic arthritis) Routine wear and tear of the MCP joint (osteoarthritis) Certain medical conditions (gout, pseudogout, psoriasis, etc.)
Why does my metacarpophalangeal joint hurt?
Causes of Metacarpophalangeal (MCP) Joint Arthritis Traumatic injury leading to broken bone or loss of cartilage (Post-traumatic arthritis) Routine wear and tear of the MCP joint (osteoarthritis) Certain medical conditions (gout, pseudogout, psoriasis, etc.) Infections (after a cut, puncture or animal bite)
Which synovial joint is the most freely moveable joint in the body?
diarthrosis
synovial joint: Also known as a diarthrosis, the most common and most movable type of joint in the body of a mammal.
Which metacarpal is the #1 metacarpal?
First metacarpal bone
The first metacarpal bone or the metacarpal bone of the thumb is the first bone proximal to the thumb. It is connected to the trapezium of the carpus at the first carpometacarpal joint and to the proximal thumb phalanx at the first metacarpophalangeal joint….
| First metacarpal bone | |
|---|---|
| FMA | 23899 |
| Anatomical terms of bone |