What Are PIP And MCP Joints?

What kind of joint is the MCP joint?

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.

The articulating surface of each metacarpal head and proximal phalange is composed of hyaline cartilage..

Does RA affect DIP joints?

The distal interphalangeal (DIP) joints, the joints closest to the tips of the fingers and thumb, are less likely to be affected by rheumatoid arthritis. When DIP joints are affected, it is typically only after symptoms appear in the MCP or PIP joints.

Where is the MP joint located?

What is the MP joint? The metacarpophalangeal (MP) joint is the large knuckle joint located where the fingers and thumb meet the hand (Figure 1). The metacarpal bones lie within the palm and the phalanges lie within the digits.

What is MCP medicine?

Medical Definition of MCP MCP: Membrane cofactor protein. A ubiquitous protein on the surface of cells that regulates complement and is involved in the attachment and ingestion of foreign particles by neutrophils and macrophages. The gene for MCP is on chromosome 1q32.

Why does my knuckle bone hurt?

The most common cause of knuckle pain is arthritis. Arthritis is a disease that causes inflammation of the joints, including the knuckles. This inflammation can result in pain, stiffness, and swelling. A person with arthritis usually feels pain with active use of their hands followed by a dull ache afterward.

What are the PIP and DIP joints?

The DIP joint in the finger is located at the tip of the finger, just before the finger nail starts. Common problems at this joint include Mallet Finger, Jersey Finger, arthritis, mucous cysts, and fractures. The PIP joint is the first joint of the finger and is located between the first two bones of the finger.

What does MCP joint stand for?

metacarpophalangealThe 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.

Why is my PIP joint swollen?

What is a PIP joint dislocation or sprain? PIP joint dislocation occurs when trauma causes the bones in the middle joint of a finger to dislodge. This usually results in a very painful, swollen and bruised joint that does not move properly, if at all.

What does Pip stand for?

PIPAcronymDefinitionPIPProximal Interphalangeal (finger joint)PIPPerformance Improvement PlanPIPPooping in PublicPIPPower in Praise (ministry)171 more rows

Where is the MCP joint located?

The metacarpophalangeal joints (MCP) are situated between the metacarpal bones and the proximal phalanges of the fingers. These 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 proximal phalanges.

What movements occur at the metacarpophalangeal joints?

—The movements which occur in these joints are flexion, extension, adduction, abduction, and circumduction; the movements of abduction and adduction are very limited, and cannot be performed when the fingers are flexed.