Senses+DB



1. A sensory receptor is a dendrite that detects a particular stimulus from the nervous system.

2. An exoteropceptor recieves stimulus from outside of the body. An exoteroreceptor may except a stimulus that results in hearing for example.

3. Interoceptors receive stimuls from inside the body. Pressoreceptors for instance, respond to blood pressure increase or decrease. They regulate homeostasis.

4. A chemoreceptor is signaled when chemical substances change in its immediate area. Some of these receptors notice if PH in the blood lowers. If it does, the receptors make sure that breathing increases.

5. A pain receptor, or nociceptor, are dendrite that respond to damaged tissues. Pain in the arm or leg indicates that we may have a medicial problem in one of those areas.

6. A photoreceptor responds to light energy. In color vision, they are reffered to as cone cells and in black and white vision, they are rod cells. The light in a rainbow affects our cone cells.



7. A mechanoreceptor mostly respond to fluid-borne pressure. The ones located in the ear, help us maintain balance.

8. A thermoreceptor is located in the skin or hypothalamus and is stimulated by change in temperature. Cold weather will stimulate our cold receptors when we walk oustide.

9. Sensation is the conscious perception of stimuli. It occurs when nerve impulses are reached by the cerebral cortex.

10. Sensory adaptation is a type of integration that is a decrease in response to a stimulus. It may occur because sensory receptors stopped sending impulses to the brain. It also may occur because the RAS has filtered it.