KRAUSE END BULBS Meaning and
Definition
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Krause end bulbs, also known as Krause corpuscles, are specialized sensory nerve endings found in the skin and mucous membranes of mammals. They are classified as mechanoreceptors – nerve cells that detect mechanical stimuli such as pressure or touch. Krause end bulbs are particularly sensitive to light touch and vibration.
These end bulbs are characterized by the presence of a capsule composed of connective tissue, which contains the nerve ending. The end bulbs consist of unmyelinated nerve fibers, which are nerve fibers without a myelin sheath – a fatty insulation that speeds up nerve conduction. The nerve endings are encapsulated within a network of support cells and connective tissue fibers, providing structural stability.
Krause end bulbs are commonly found in areas of high sensitivity such as the lips, fingertips, and mucous membranes of the mouth and genitals. They play a crucial role in detecting gentle touch, temperature changes, and even subtle vibrations. This sensory information is then transmitted to the brain, allowing for the perception and interpretation of tactile stimuli.
These specialized nerve endings are named after Wilhelm Krause, a German anatomist who first described them in 1860. While their exact function is still not fully understood, Krause end bulbs contribute to the complex sensory network that allows us to experience and respond to our physical environment through the sense of touch.
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