Muscles of the hand

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Muscles of the Hand

The muscles of the hand are a group of muscles located in the human hand that are responsible for the movement and dexterity of the fingers and thumb. These muscles can be categorized into two main groups: the intrinsic muscles and the extrinsic muscles.

Intrinsic Muscles[edit | edit source]

The intrinsic muscles of the hand are located within the hand itself. They are responsible for fine motor movements and include the following:

Extrinsic Muscles[edit | edit source]

The extrinsic muscles of the hand originate in the forearm and extend into the hand. They are responsible for gross motor movements and include the following:

Function[edit | edit source]

The muscles of the hand work together to perform a wide range of movements, including flexion, extension, abduction, adduction, and opposition of the fingers and thumb. These movements are essential for various activities such as gripping, holding, and manipulating objects.

Clinical Significance[edit | edit source]

Injuries or conditions affecting the muscles of the hand can significantly impact hand function. Common conditions include carpal tunnel syndrome, Dupuytren's contracture, and trigger finger. Proper diagnosis and treatment are essential for restoring hand function and preventing long-term disability.

See Also[edit | edit source]

Template:Musculoskeletal system


Contributors: Prab R. Tumpati, MD