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The important structures of the hand 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 is referred to as the palmar side. The back of the hand is called the dorsal side. Bones and Joints
Cutaneous innervation: Lateral ⅔ of dorsum of hand; dorsal proximal ⅔ of lateral 3 ½ digits The following learning resources will explain everything you need to know about the innervation of the hand, as well as its origins.
The bones of the hand provide support and movement to the soft tissues. They can be categorised into three different types: 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.
There are four dorsal and three palmar interossei muscles. They insert onto the proximal phalanx and extensor hood of each finger. Palmar interossei ADduct the fingers, and dorsal interossei ABduct the fingers (hence PAD/DAB).
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The bones of the hand and wrist provide the body with support and flexibility to manipulate objects in many different ways. Each hand contains 27 distinct bones that give the hand an incredible range and precision of motion.
Anatomy. Where are the hand and wrist located? Your wrist is the joint at the end of your forearm. It’s the hinge between your arm and hand that lets you reposition your hand. Your hand begins where your wrist ends. It includes your palm, fingers and thumb. How are the hand and wrist structured?
Back (opisthenar): The back of the hand shows the dorsal venous network, a web of veins. Wrist: The connection point between the arm and the hand, the wrist enables hand movements.
The muscles that act on the hand can be divided into two groups: Extrinsic muscles – located in the anterior and posterior compartments of the forearm. They control crude movements and produce a forceful grip. Intrinsic muscles – located within the hand itself. They are responsible for the fine motor functions of the hand.
Hand Bones - Names & Structure with Labeled Diagrams. There are 27 bones in each human hand, with the total number being 54. 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.