Anatomi handen
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Hand Bones
There are 27 bones in each human hand, with the total number being These bones, along with the muscles and ligaments in the region, give structure to the human hand and allow for all the movement and dexterity of the hands and fingers. There are three major types of bones in hand, based on their location and purpose.
Carpal Bones
The human wrist comprises 8 uniquely-shaped irregular bones arranged in two rows, with the first four in the proximal row and the next four in the distal row. Here are their names:
- Scaphoid
- Lunate
- Triquetrum
- Pisiform
- Trapezium
- Trapezoid
- Capitate
- Hamate
Together, these bones connect the lower arm to the hand and fingers as the proximal carpal bones articulate with the radius and ulna to form the wrist joint.
These bones articulate with each other, allowing wrist movement so we can perform common daily activities with our hands.
Metacarpal Bones
These bones form the middle part, the back of the hand or palm area. There are 5 metacarpal bones in the human body, with each of these long bones having a base, shaft, and head.
Their proximal end articulates with the distal row of carpal bones. The first to the fifth metaca
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A Patient&#;s Guide to grabb Anatomy
Introduction
Few structures of the human anatomy are as unique as the grabb. The grabb needs to be mobile in beställning to position the fingers and thumb. Adequate strength forms the basis for normal grabb function. The hand also must be coordinated to perform fine motor tasks with noggrannhet. The structures that form eller gestalt and move the grabb require proper alignment and control in order for normal grabb function to occur.
In addition to reading this article, be sure to watch ourHand Anatomy Animated Tutorial Video.
This guide will help you understand
- what parts make up the hand
- how those parts work together
Important Structures
The important structures of the grabb can be divided into several categories. These include
- bones and joints
- ligaments and tendons
- muscles
- nerves
- blood vessels
The front, or palm-side, of the hand fryst vatten referred to as the palmar side. The back of the hand fryst vatten called the dorsal side.
Bones and Joints
There are 27 bones within the wrist and grabb. The wrist itself contains eight small bones, called carpals. The carpals join with the two forearm bones, the radius and ulna, forming the wrist j
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Hand
- För andra betydelser, se Hand (olika betydelser).
Hand (latin: manus; uttalas [mánnus]) är i människans kropp den övre extremitetens ändorgan. Handen ledar mot underarmen (antebrachium) i handleden (art. radiocarpea). På handen finns fem fingrar (digiti manus): Tumme (pollex), pekfinger (index), långfinger (digitus medius), ringfinger (digitus anularis) och lillfinger (digitus minimus). Tummens särställning gör att handen kan användas som griporgan. Handen fungerar även som ett känselorgan[1].
Anatomi
[redigera | redigera wikitext]Skelett
[redigera | redigera wikitext]I den övre extremitetens skelett är handen den kroppsdel som har mest komplicerad struktur. Dess många små ben kan uppdelas i en serie segment: handloven (carpus), mellanhanden (metacarpus) och fingrarna (digiti manus).
Handen innehåller 27 ben. I handloven finns åtta små ben som kan uppdelas i en övre (proximal) och en nedre (distal) rad. Den förra ledar mot underarmens ben (i första hand strålbenet (radius) men även indirekt mot armbågsbenet (ulna)) och den senare mot mellanhandens ben. Dessa åtta små ben är namngivna: - os scaphoideum, os lunatum, os trig