Search results
Nov 13, 2023 · Going from lateral to medial, they are named thumb (digit 1), index finger (digit 2), middle finger (digit 3), ring finger (digit 4) and little finger (digit 5). This article will describe the anatomy and functions of the phalanges of hand. Contents. Proximal phalanges. Middle phalanges. Distal phalanges. Sources. + Show all. Proximal phalanges.
- Medical Content
- 6 min
- Nutrient rami from palmar digital arteries
Functions of the Phalanges The phalanges play a vital role in the movement and flexibility of digits, as well as the whole hand. These bones allow us to flex and fold the fingers and thumb to hold or pick something up, and carry on all daily activities like using a phone, typing, eating and so on.
- 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...
Dec 12, 2023 · Definition: What are the Finger Phalanges (Digit Bones) How Many Digit Bones are There in the Hand; Where are the Digital Bones Located; Nomenclature of the Phalanges According to Location; Structure of a Digit Bone; Components of the Bone; Articulations; Ligament Connections; Vascular Supply; Growth and Ossification; Functions of the Digit Bones
Apr 28, 2017 · Functions of Phalanges These bones form the structure of fingers and toes and are crucial for most of the evolutionary activity in hominid species. Tool making, precise gripping, grasping and handling of equipment arose due to anatomical features of the phalanges.
The phalanges / fəˈlændʒiːz / ( sg.: phalanx / ˈfælæŋks /) are digital bones in the hands and feet of most vertebrates. In primates, the thumbs and big toes have two phalanges while the other digits have three phalanges. The phalanges are classed as long bones . Structure. The phalanges in a human hand. Toe bones or phalanges of the foot.
Mar 31, 2024 · Phalanges (distal) – the bones of the digits. The thumb has two phalanges, whilst the rest of the fingers have three. In this article, we shall look at the anatomy of the bones of the hand – their structure, articulations and clinical correlations. Fig 1 – Overview of the bones of the hand. Carpal Bones.
