SESSILE RECEPTOR Meaning and
Definition
-
A sessile receptor refers to a type of sensory receptor that is attached or fixed to a surface and does not possess any means of active movement. It is a sensory structure found in both invertebrates and plants that allows them to perceive and respond to various stimuli in their environment.
In animals, sessile receptors are commonly found in the form of sensory cells found in the skin or other tissues of the organism. These receptors are sensitive to external stimuli like pressure, temperature, or vibrations. They play a crucial role in the organism's sensation and response mechanisms. For example, in humans, sessile receptors on the skin allow us to feel sensations such as touch, pain, pressure, and temperature.
In plants, sessile receptors are specialized structures that enable the plant to detect and respond to changes in their surroundings. These receptors can sense light, gravity, touch, or chemicals. For instance, roots possess sessile receptors that enable them to perceive gravity, allowing the plant to grow in the proper direction. Similarly, leaves possess sessile receptors that detect light, initiating photosynthesis and controlling the growth and orientation of the plant.
The sessile receptors' fixed nature makes them distinctly different from motile receptors, which are capable of actively moving towards or away from stimuli. Sessile receptors are integral components of an organism's sensory system, playing a vital role in its overall perception, survival, and response strategies.
-
In Ehrlich's side-chain theory, a r. of peculiar construction which cannot be cast off to form an antibody.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for SESSILE RECEPTOR
- aessile receptor
- zessile receptor
- xessile receptor
- dessile receptor
- eessile receptor
- wessile receptor
- swssile receptor
- ssssile receptor
- sdssile receptor
- srssile receptor
- s4ssile receptor
- s3ssile receptor
- seasile receptor
- sezsile receptor
- sexsile receptor
- sedsile receptor
- seesile receptor
- sewsile receptor
- sesaile receptor
- seszile receptor
Etymology of SESSILE RECEPTOR
The word "sessile receptor" is composed of two main components: "sessile" and "receptor".
The term "sessile" comes from the Latin word "sessilis", meaning "sitting" or "resting". In biology, "sessile" refers to an organism or structure that is attached or fixed to a surface and does not move. It is typically used to describe plants or animals that remain permanently attached to a substrate such as a rock or a tree stump.
The term "receptor" comes from the Latin word "receptus", meaning "receiving". In biology, a receptor is a specialized cell or group of cells that can detect and respond to specific stimuli, such as light, sound, touch, chemicals, or other signals.
