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Nov 13, 2023 · The phalanges of the hand are the group of small bones that comprise the bony core of the digits (fingers) of the hand. Even though the phalanges are small in size, they are classified as long bones because of their structural characteristics; each phalanx consists of a shaft, distal head and a proximal base.
- Medical Content
- 6 min
- Nutrient rami from palmar digital arteries
- Definition and Location
- Structure and Anatomy
- Development
- Function of The Phalanges
- Clinical Significance
Phalanges are miniature long bones that form fingers of both hands and feet. There are 14 phalanges in each limb, 56 in total. Each finger has three phalanges: proximal, intermediate and distal. Thumbs of both hand and feet have only two phalanges because intermediate phalanges accreted with distal ones during the development. The word “phalanx” or...
Each phalanx has a body (shaft), proximal part (base) and a distal part (head). The Body of proximal and intermediate phalanges is convex on dorsal and flat on palmar side, and it tapers from above downward. Sides of the body are rough which gives attachment to the fibrous sheets of the flexor tendons. The base of proximal phalange is a concave art...
Hand phalanges have two centers of ossification; one is for the body and one for proximal part of the bone. Ossification process begins in the body, around the eighth week of fetal life. Ossification in the proximal part starts between the third and fourth years in proximal phalanges, and a year later in those of intermediate and distal ones. Those...
The function of the phalanges is inseparable from that of fingers. Phalanges are bony basis of fingers and a place of insertions of ligaments and tendons. They create joints that together with corresponding muscles make finger flexion and extension possible. Opposition and reposition of a thumb, basic and most important thumb and hand moves would n...
From the clinical aspect, there are variations and disorders of phalanges that are very important to recognize. Brachymesophalangiais the most common skeletal variation of phalanges. It affects around 20% of Japanese and Native American populations, and it usually affects middle phalanx. In this case, the middle phalanx is shortened and widened. Ca...
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The phalanges are the bones that make up the fingers of the hand and the toes of the foot. There are 56 phalanges in the human body, with fourteen on each hand and foot. Three phalanges are present on each finger and toe, with the exception of the thumb and big toe, which possess only two. The middle and far phalanges of the fourth and ...
- phalanx, pl. phalanges
There are 3 major types of bones in the hand itself, including: Phalanges. The 14 bones that are found in the fingers of each hand and also in the toes of each foot. Each finger has 3 phalanges (the distal, middle, and proximal); the thumb only has 2. Metacarpal bones. The 5 bones that compose the middle part of the hand. Carpal bones.
Aug 2, 2023 · Start Now. Phalanges (singular: phalanx) are the set of 14 hand bones that compose the bony skeleton of the fingers. Each finger has three phalanges, called proximal, middle and distal. The thumb is an exception, having only two phalanges, proximal and distal. The proximal phalanges are the largest in size, while the middle and distal are each ...
The tubular bones forming the fingers and thumbs in human hands are known as phalanges (singular term: phalanx) [1]. These are commonly called digital or finger bones [2]. This article deals only with the phalanges of the hands. Visit the phalanges of the feet article for information about the toe bones.
Mar 31, 2024 · Carpal bones (proximal) – a set of eight irregularly shaped bones. They are located in the area of the wrist. Metacarpals – a set of five bones, each one related to a digit. They are located in the area of the palm. Phalanges (distal) – the bones of the digits. The thumb has two phalanges, whilst the rest of the fingers have three.
