Anatomically, it is said that the knuckles consist of the metacarpophalangeal [1] (MCP) and interphalangeal (IP) joints of the finger. The knuckles at the base of the fingers may be referred to as the 1st [1] or major knuckles while the knuckles at the midfinger are known as the 2nd [2] and 3rd, or minor, knuckles.

Feb 6, 2024 · In this article, we will examine the anatomy of the finger, including its different parts and functions, to get detailed information about the fingers. The finger joints allow the performing of various movements with precision and accuracy. These joints are necessary for bending, straightening, twisting, and grasping objects.

Each finger contains 3 joints, more commonly known as knuckles. The thumb has two knuckle joints. The largest joint of each finger lies between the finger and the hand. This first joint at the base of the finger is called the metacarpophalangeal joint (MCP). It works like a hinge when you straighten your fingers and thumb.

Nov 2, 2024 · Metacarpophalangeal joint (MCP): Also called the knuckle, this is where the proximal phalanx in each finger meets an adjacent hand bone (metacarpal bones). Proximal interphalangeal joint (PIP): This is the joint in the middle of the finger, connecting the proximal and middle phalanges.

The knuckles of the hand are the joints where the fingers meet the hand bones. They are formed by the metacarpophalangeal (MCP) and interphalangeal (IP) join...

Mar 9, 2024 · On the back of the hand, where the knuckles form, a flat, triangular area becomes visible just before the fingers. The knuckle’s raised prominence comes from the rounded heads of the metacarpal bones, which meet the finger bones at the metacarpophalangeal joints.

The three phalanges in each finger are separated by two joints, called interphalangeal joints (IP joints). The one closest to the MCP joint (knuckle) is called the proximal IP joint (PIP joint). The joint near the end of the finger is called the distal IP joint (DIP joint).

Jun 12, 2023 · Bones provide the main structural support in your hand and wrist. They give them their shape and are the anchors other pieces are connected to. There are 19 bones in each of your hands. They’re grouped together by their location and function: Metacarpals: The bones that are in your palm and give it its shape.

The enlarged end of each phalanx (finger bone) being either the base or head is known as the knuckle bone. There are two types of finger joints, all of which are commonly referred to as knuckle joints : There are two interphalangeal joints (IP joints) on each finger, except for the thumb which has one.

Jun 29, 2021 · The knuckles, known as the metacarpophalangeal (MCP) joints, join the fingers to the palm. The interphalangeal (IP) joints are the finger joints. All of these small joints are known as synovial joints and are covered with articular cartilage.