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The muscles that act on the hand can be divided into two groups: Extrinsic muscles – located in the anterior and posterior compartments of the forearm. They control crude movements and produce a forceful grip. Intrinsic muscles – located within the hand itself. They are responsible for the fine motor functions of the hand.
The muscles of the hand are the skeletal muscles responsible for the movement of the hand and fingers. The muscles of the hand can be subdivided into two groups: the extrinsic and intrinsic muscle groups. The extrinsic muscle groups are the long flexors and extensors.
The hand has several muscles. Some make broad, smooth movements, and others make small, finite movements. It’s the combination of the exterior and deep muscles of the hand and forearm...
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.
Several muscles in the hands help flex and extend the thumb and fingers. They also help with gripping things and making a fist – basically, anything you do with your hands. These muscles can be divided into two groups based on their point of origin – intrinsic and extrinsic.
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: Bones. Muscles. Nerves. Tendons. Ligaments. Blood vessels (arteries and veins). Lymphatic vessels.
The hand is composed of intrinsic muscles, which are entirely located within the hand; and extrinsic muscles, which are forearm muscles, but act on the hand and fingers through their long tendons.
The Muscles of the Hand. Explore the anatomy and function of the human body's 30+ hand muscles with Innerbody's interactive 3D model. The hand is an intricately complex structure whose muscles have evolved to permit an unequalled array of movements.
The muscles of the thenar and the hypothenar eminence along with the adductor compartment make up the intrinsic muscles of the hand. Their origin and insertion is within the carpal and metacarpal bones and are surrounded by ligaments, and fascia of the hand.
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.