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Aug 8, 2023 · Blood supply to the volar (palmar) surface of the hand originates from the radial and ulnar artery. As the arteries carry blood across the wrist and reach the palm, they anastomose to form two arches called the superficial volar arch and the deep volar arch. These arches, along with their branches, form an abundant network of blood vessels that is responsible for providing oxygenated blood to ...
- Adrian C. Kong, Matthew Varacallo
- 2023/08/08
- 2019
Nov 13, 2023 · The thenar muscles are three in total; they are evident and easy to palpate on the radial side of the palmar surface of the hand, at the base of the thumb. They form the ‘ball’ or ‘fleshy’ part of the thumb known as the thenar eminence, and are named as follows: abductor pollicis brevis, flexor pollicis brevis, and opponens pollicis.
Introduction. The hand contains a number of joints that allow complex actions, such as manipulating, gripping and grasping objects. Optimal hand function requires adequate strength, sensation, range of motion, and dexterity. When one or more of these components are injured or impaired, an individual's participation in daily activities may be ...
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- Where Are The Hand and Wrist located?
- How Are The Hand and Wrist structured?
- Hand and Wrist Anatomy
- Hand and Wrist Bones
- Hand and Wrist Muscles
- Hand Nerves and Wrist Nerves
- Hand and Wrist Tendons
- Hand and Wrist Ligaments
- Hand and Wrist Arteries and Blood Vessels
- Hand and Wrist Lymphatics
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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.
Your hand and wrist are structured to allow you to move, flex and rotate your wrist joint and to use your hand to grab and touch objects. Your wrist acts like a pivot point that can move in almost any direction as you reach and flex your hand. Think about your hand and wrist like a crane game at an arcade. Your hand is the claw that grabs and holds...
The parts that make up your hand and wrist are layered upon each other to form a three-dimensional shape that gives them the ability to move and function. Your hand and wrist are made of: 1. Bones. 2. Muscles. 3. Nerves. 4. Tendons. 5. Ligaments. 6. Blood vessels(arteries and veins). 7. Lymphatic vessels.
Bones provide the main structural support in your hand and wrist. They give them their shape and are the anchors other pieces are connected to.
Muscles are soft tissue made of stretchy fiber. Intrinsic muscles inside your hand work with extrinsic muscles near the outside of your hand and in your forearm to give your hand its strength and dexterity.
Nerves control your muscles and help you feel and process sensations, including: 1. Touch. 2. Temperature. 3. Pain. 4. Pressure. Three main nerves give your hand and wrist sensation: 1. Radial nerve. 2. Median nerve. 3. Ulnar nerve. All three of these nerves are connected to many branches of smaller nerves that spread out into your hand and wrist.
Tendons link your muscles to your bones. They’re like strong, flexible ropes. Your hand and wrist have two groups of tendons: 1. Extensor tendons: Tendons that help you extend and straighten your fingers, hand and wrist. 2. Flexor tendons:Tendons that help you flex and curl your fingers, hand and wrist.
Ligaments are the other type of connective tissue in your hand. If tendons are like ropes, ligaments are more like thick rubber bands. Their main functions include: 1. Helping your joints move smoothly. 2. Protecting your joints from bending too far. 3. Keeping your joints in the proper alignment.
Your hand and wrist get blood from two arteries. The radial artery runs along your radius (closer to your thumb). The ulnar artery runs along your ulna (closer to your pinkie finger). These arteries communicate with each other in “arches” that form in your hand. There’s a superficial and deep arch in your hand. Vessels branch off the arches and sup...
Your lymphatic system is a network of tissue, vessels and organs that collect excess plasma from your bloodstream and redistribute it throughout your body. Tiny capillaries in your hand capture extra plasma from the blood vessels that supply your hand and wrist. They connect to bigger lymph nodes and vessels in your upper arm.
Learn about the bones, muscles, nerves, tendons and ligaments that make up your hand and wrist. Find out how they work together to let you touch, hold and move objects.
Learn about the skeleton, muscles, and nerves of the hand, and how they enable various movements and functions. The flexor muscles of the hand are located on the anterior (volar) surface of the forearm and are attached by tendons to the phalanges of the fingers.
Learn about the anatomy and function of the joints in the hand, including the palmar or volar surface of the hand. Find out the common problems and treatments for each joint, such as arthritis, fractures, ligament injuries, and tendon ruptures.
Jun 29, 2016 · Surface anatomy of the left hand. A is the dorsum of the left hand, and B is the palm of the left hand. Number 1 is the position of the extensor retinaculum, 2 is the position of the flexor retinaculum, 3 is the position of the head of the metacarpals, 4 is the ulnar artery, 5 is the radial artery, 6 is the level of the deep palmar arch, and 7 is the level of the superficial palmar arch.
