"Dorsum manus" is a Latin term that translates to "the backside of the hand" in English. It refers specifically to the upper surface or the posterior aspect of the hand, which is opposite to the palm or the ventral side of the hand. It consists of the skin, subcutaneous tissues, muscles, tendons, blood vessels, and nerves that are positioned on the back of the hand.
The dorsum manus is highly flexible and capable of various movements, demonstrations, and functions. It plays a vital role in executing actions such as grabbing, holding, grasping, and manipulating objects due to the presence of multiple muscles and their tendons. It is also involved in other important activities like gesturing, writing, typing, and playing musical instruments.
The dorsum manus provides protection to underlying structures primarily through a resistant coating of skin, which acts as a natural barrier against external factors like mechanical injuries, extreme temperatures, harmful substances, and microorganisms. It also houses major blood vessels and nerves that supply the hand and its different parts, ensuring proper circulation and innervation.
Furthermore, the dorsum manus serves as a platform for sensory perception as it contains numerous sensory receptors specialized in detecting external stimuli such as touch, pressure, temperature, and pain. These receptors relay information to the brain, allowing individuals to perceive and respond to their environment accordingly.
Overall, the dorsum manus is an integral component of the hand, serving as a functional, protective, and sensory structure that facilitates a wide range of activities and interactions with the surroundings.
