We received the men and their wives, the men and their mothers, the men and their grandmothers--but, in place of their unmarried daughters, elaborate excuses, offered with a shameless politeness wonderful to see.
Sensory neurons that monitor position and movement of body parts. Respond to degree of stretch of the organs they occupy. Monitor how much organs containing these receptors are stretched. Include muscles, tendons, and joint capsules. They can determine how much force is being applied to your limbs allowing you to pick something up without crushing it or dropping it.
Sensory Receptors. Stimuli in the environment activate specialized receptor cells in the peripheral nervous system. Different types of stimuli are sensed by different types of receptor cells. Receptor cells can be classified into types on the basis of three different criteria: cell type, position, and function.Receptors can be classified structurally on the basis of cell type and their position in relation to stimuli they sense. third classification of receptors is by how the receptor transduces stimuli into membrane potential changes. Stimuli are of three general types. Some stimuli are ions and macromolecules that affect transmembrane receptor proteins when these chemicals diffuse across the cell membrane.