Physiology 2130 Lecture Notes - Lecture 7: Lamellar Corpuscle, Golgi Tendon Organ, Gamma Motor Neuron
8 Dec 2016
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Document Summary
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 ngers and press on your eyelids, you will notice that you begin to see spots! So while these receptors are most sensitive to light, they can also be stimulated by a certain amount of pressure. The movement of ions in a sensory receptor is called a receptor potential.
