ANIMAL PHYSIOLOGY
NERVOUS SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
mechanoreceptors
|
|
photorecepetors
|
|
chemoreceptors
|
|
thermoreceptors
|
Detailed explanation-1: -Mechanoreceptors, also called mechanoceptors, are specialised neurons that respond to mechanical pressure and distortion. They are innervated with sensory neurons that convert mechanical pressure into electrical impulses that are transmitted to the central nervous system.
Detailed explanation-2: -Cutaneous mechanoreceptors. Cutaneous mechanoreceptors respond to mechanical stimuli that result from physical interaction, including pressure and vibration. They are located in the skin, like other cutaneous receptors.
Detailed explanation-3: -The mechanoreceptor 1° afferent terminal membrane contains ion channels that respond to mechanical distortion by increasing sodium and potassium conductance (i.e., the channels are stress gated).
Detailed explanation-4: -[8] Mechanoreceptors respond to physical changes including touch, pressure, vibration, and stretch.
Detailed explanation-5: –Pacinian corpuscles are rapidly-adapting, deep receptors that respond to deep pressure and high-frequency vibration.