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elements of the hand. This promotes stability for grip. The phalanges and the 4th and 5th Metacarpals are the mobile part of the hand and allow grasping around objects. All the joints of the hand and wrist have basic anatomic forms favouring flexion. Diagram 1: bones of the hand Wrist and Forearm Joints
13 lis 2023 · The hand itself consists of specific bones onto which various muscles are attached, and a collection of neurovascular structures responsible for drainage and innervation. However, the intrinsic muscles of the hand are only partially responsible for all its range of motion.
17 paź 2022 · Three independent nerves supply the cutaneous innervation of the hand (see Image. Hand Cutaneous Innervation). From lateral to medial, these nerves include the superficial branch of the radial, median, and ulnar nerve. These peripheral nerves originate from the C5 to T1 levels of the spinal column.
•Innervation: The lateral two lumbricals (of the index and middle fingers) are innervated by the median nerve. The medial two lumbricals (of the little and ring fingers) are innervated by the ulnar nerve.
Basic Hand Anatomy Surface Anatomy Joints and Bones Fingertip Anatomy Motion.A Motion.B Images from The Hand: Examination and Diagnosis, 3rd Edition Written by American Society for Surgery of the Hand Published by Churchill Livingstone No part of these images may be reproduced or presented without expressed
KEY POINTS. Hand function is result of intricate interaction between the skeletal anatomy and the intrinsic and extrinsic hand musculature. Hand capable of performing precise fine motor tasks as well as tasks that require force and endurance.
Comprehensive anatomy of wrist and hand and common sites of injury. Palmar and extensor neurovasculature. The origin, course, distribution, and anastomosis of the branches of the major vessels that supply/drain the hand (superficial and deep palmar arches) and fingers (digital branches).
