detects mechanical deformation of the receptor or adjacent cells; detecting touch, pressure, vibration, proprioception, hearing, equilibrium, and blood pressure.
detects changes in temperature.
respond to painful stimuli resulting from physical or chemical damage to tissue.
detect light that strikes the retina of the eye.
detect chemicals in the mouth (taste), nose (smell), and body fluids.
detect the osmotic pressure of body fluids.
How do sensory receptors differ structurally?
free nerve endings are bare dendrites; encapsulated nerve endings have dendrites enclosed within a connective tissue capsule; separate cells
What is adaptation? How does it occur?
the generator potential or receptor potential decreases in amplitude during a maintained, constant stimulus resulting in the sensation fading or disappearing even though the stimulus persists
What is the difference between rapidly adapting and slowly adapting receptors?
rapidly adapting receptors adapt very quickly and are specialized for signaling changes in a stimulus; slowly adapting receptors adapt slowly and continue to trigger nerve impulses as long as the stimulus persists
the state of awareness of external and internal condition of the body