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Designing for Hand and Wrist Anatomy
Published in Karen L. LaBat, Karen S. Ryan, Human Body, 2019
The wrist and hand contain many small bones that provide flexibility and dexterity (Figure 7.1). A network of ligaments and fascia join the bones, while tendons and muscles move the bones in relationship to each other. Following distally from the styloid processes of the radius and the ulna, (bumps you can palpate on either side of your wrist), the next set of bones are the carpalbones, commonly called the wrist. This group of eight small irregularly-shaped bones in the base of the hand bridges between the more stable bones of the hand, the metacarpals, and the radius and ulna of the forearm. The narrowest circumference of the wrist/forearm, where a bracelet or fitness or health monitoring band might be worn, is located (a) near the distal ends of the radius and ulna or (b) over the proximal row of carpal bones. The metacarpal bones are the bones of the palm of the hand and the base of the thumb. The next set, and most distal bones, are the phalanges of the fingers and thumb.
Developments and clinical evaluations of robotic exoskeleton technology for human upper-limb rehabilitation
Published in Advanced Robotics, 2020
Akash Gupta, Anshuman Singh, Varnita Verma, Amit Kumar Mondal, Mukul Kumar Gupta
In this section, upper-limb anatomy has been briefly explained which is required to design a robotic exoskeleton device having optimum human-robot interaction (HRI). The shoulder complex consists of Clavicle Joint (Collarbone) and Scapula (Shoulder Blade). The Shoulder complex and elbow complex are connected with the Humerus, while the Elbow complex and wrist joint are connected with two bones Radius and Ulna that form the forearm as shown in Figure 2. Finally, the hand consists of Carpal bone, Metacarpal bones, and the Phalanges.