Palmar aponeurosis
Palmar Aponeurosis
The Palmar Aponeurosis (pronounced: PAL-mar a-PO-neu-RO-sis), also known as the Palmar Fascia, is a thick, triangular, fibrous sheet of connective tissue found in the palm of the hand. It plays a crucial role in the hand's function and structure.
Etymology
The term "Palmar Aponeurosis" is derived from the Latin words "palma," which means palm, and the Greek word "aponeurosis," which refers to a sheet-like tendon.
Anatomy
The Palmar Aponeurosis is located in the central part of the hand. It originates from the flexor retinaculum and the palmaris longus tendon, extending towards the base of the fingers. It divides into four slips at the level of the metacarpophalangeal joints, each slip attaching to the fibrous digital sheath of each finger.
Function
The primary function of the Palmar Aponeurosis is to protect the underlying tendons, nerves, and blood vessels. It also helps in gripping objects by increasing the grip strength and maintaining the arches of the hand.
Related Terms
- Dupuytren's contracture: A medical condition affecting the Palmar Aponeurosis, causing one or more fingers to bend into the palm of the hand.
- Fascia: A band or sheet of connective tissue beneath the skin that attaches, stabilizes, encloses, and separates muscles and other internal organs.
- Flexor retinaculum: A fibrous band on the palmar side of the hand near the wrist that maintains the position of the tendons of the flexor muscles during contraction.
See Also
External links
- Medical encyclopedia article on Palmar aponeurosis
- Wikipedia's article - Palmar aponeurosis
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