Physiology 1021 Study Guide - Lamellar Corpuscle, Postcentral Gyrus, Golgi Tendon Organ

• School: Western University
• Department: Physiology
• Course: Physiology 1021
• Professor: Anita Woods

Document Summary

In the last module we talked about how our brain causes muscles to move or actions to occur in our bodies. In order for us to sense and detect changes in the environment, we use receptors. These act as sensors of our body and are responsible for initiating what we perceive as one of our many senses (taste, smell, hearing, sight, touch). We have numerous sensory receptors all over our body, each particularly good for sensing one thing (adequate stimuli). However, this doesn"t mean it only senses one type of stimuli. A good example of this is your photoreceptors in your eyes. They are particularly good at sensing light (adequate stimulus) but if you take your fingers and press on your eyelids, you will notice that you begin to see spots! The movement of ions in a sensory receptor is called a receptor potential.