The transverse carpal ligament, also known as the flexor retinaculum, is a fibrous band on the palmar side of the hand that forms the roof of the carpal tunnel, providing stability to the wrist and protecting the median nerve and tendons passing through the tunnel. Dysfunction or thickening of this ligament can lead to carpal tunnel syndrome, a condition characterized by pain, numbness, and tingling in the hand and arm.

Transverse Carpal Ligament

The flexor retinaculum is a strong, fibrous band that forms the roof of the carpal tunnel, stabilizing the tendons of the flexor muscles as they pass into the hand. It plays a crucial role in hand function by preventing bowstringing of the tendons, ensuring efficient movement and grip strength.

Flexor retinaculum

Fibrous Band

Palmar side of the hand

Roof of the carpal tunnel

Stability to the wrist

The median nerve is a crucial component of the peripheral nervous system, responsible for innervating the anterior compartment of the forearm and parts of the hand, including the thenar muscles and lateral two lumbricals. It plays a vital role in motor and sensory functions, and its compression can lead to conditions such as carpal tunnel syndrome.

Median Nerve

Tendons are strong, fibrous connective tissues that attach muscles to bones, enabling the transmission of force necessary for movement. They are composed primarily of collagen fibers, which provide the necessary tensile strength and flexibility to withstand the mechanical stress of muscle contractions.

Tendons

Carpal Tunnel Syndrome is a condition caused by compression of the median nerve as it travels through the carpal tunnel in the wrist, leading to symptoms like numbness, tingling, and weakness in the hand. It is commonly associated with repetitive hand movements and can be managed through ergonomic adjustments, splinting, or surgical intervention if necessary.

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