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Feb 6, 2024 · The anatomy of fingers is a complex network of tissues comprising muscle fibers, tendons, ligaments, nerves, and blood vessels. At the heart of finger anatomy lie the phalanges, a series of small bones that provide structure. Surrounded by muscles and tendons, these phalanges enable precise movements and intricate control, granting fingers ...
- Anatomy
- Function
- Associated Conditions
The hand contains 14 phalanges—the bones that make up the fingers. The term phalanx is singular, referring to one finger bone. Each finger contains three phalanges (proximal, middle, and distal), and the thumb has two phalanges. The finger digits are commonly referred to as the thumb, index finger, long (or middle) finger, ring finger, and small (o...
Your fingers are vital for completing everyday tasks, and they are your most used limbs. They enable you to perform most of the activities you do daily.When any part of your hand is not working properly, daily activities like bathing, cooking, doing your job, and caring for children become harder. One hand is made up of about 27 bones, and 14 of th...
Your fingers are important for completing everyday tasks. They are one of the most used limbs in your body and they are also the most delicate. Problems with the finger joints can occur from different types of injuries. Also, many different conditions, including arthritis, can affect the finger joints.
- Lana Barhum
- Bones of the hand. To understand the anatomy of the hand we first must understand the anatomy of the forearm and wrist. The forearm consists of two bones, the radius and the ulna.
- Muscles of the hand. Interossei muscles. The interossei muscles are intrinsic hand muscles that originate from the intermediate surfaces of the metacarpals.
- Nerves of the hand. The ulnar nerve (C8-T1 nerve roots) arises from the medial cord of the brachial plexus and supplies all of the intrinsic muscles of the hand with a few exceptions.
- Blood supply and drainage of the hand. The superficial palmar arch is the main continuation of the ulnar artery. It receives a small superficial branch from the radial artery and supplies the fingers with blood via the common digital, and the distal ‘proper digital arteries’ which run on either side of the finger.
May 4, 2022 · The wonderful diversity of hand function is achieved through the large freedom of movement of the fingers, which allows both stability and precise alignment of the finger joints. As Aristotle observes: “The hand is the ‘tool of tools’” (Aristotle, Parts of animals IV 10, 687a: 8–10). The anatomy, biomechanics, and mode of action of ...
3 BAHT Level I Anatomy Finger Joints Each finger consists of a metacarpal and three phalanges (diagram 2). The length of the fingers varies as do the phalanges to allow the tips to converge in full grip. Metacarpophalangeal Joint (MCP joint) This joint lies between the metacarpal head and proximal phalanx base. These
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Nov 13, 2023 · Together, these muscles are expert movers of the little finger (fifth digit); they abduct, flex, and bring it towards the thumb to facilitate opposition. The last three groups of hand muscles, that is the lumbricals , dorsal interossei , and palmar interossei , are situated in the deepest layer of the hand and are commonly taken together as one big group called the metacarpal muscles of the hand.
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Fingers have a complex anatomy. Each finger has 3 phalanges (bones) and 3 hinged joints; the thumb has two of each. Ligaments connect finger bones and help keep them in place. Tendons connect muscles to bones. Finger movement is controlled by muscles in the forearms that pull on finger tendons. Finger Bones.
