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20 maj 2021 · About one quarter of all our body’s bones are found in our hands. The hand can be divided up into three different areas based on the joints: The wrist is made up of two parts of a joint that work as one functional unit. It allows us to flex (bend) or extend (stretch) our hands.
25 lut 2019 · Hand anatomy and biomechanics form the framework for understanding the human ability to grip, let go, cup, spread, flex, extend, and even strike, using the most complex anatomic tool of our bodies.
9 mar 2024 · The extensor expansion (extensor hood) of the hand is a specialised connective tissue structure by which the extensor tendons insert onto the phalanges. It is a complex structure which acts to balance the forces from a large number of muscles that act on the digits.
Few structures of the human anatomy are as unique as the hand. The hand needs to be mobile in order to position the fingers and thumb. Adequate strength forms the basis for normal hand function. The hand also must be coordinated to perform fine motor tasks with precision.
28 lis 2023 · The function of the hand is to grip, grasp and form precise movements, e.g. writing and sewing. This article will look at the anatomy of grip, including the different types of grip and the anatomical structures involved.
1 cze 2004 · We review this evidence, with a particular emphasis on how these constraints extend through the neuromuscular system from the behavioral aspects of finger movements and forces to the control of the hand from the motor cortex.
12 cze 2023 · Your hand is the claw that grabs and holds prizes, and your wrist is the mechanical joint that lets the claw move up and down, and side to side. Hand and wrist anatomy. 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.
