Sensory nerve endings under the skin that respond to temperature changes at or near the skin and provide input to keep the body's temperature at 98.6 degrees Fahrenheit are known asMultiple choice question.temporoceptors.basilar membranes.papillae.thermoreceptors.

Which of the following information about temperature receptors is incorrect?A) Cold sensors are just below epidermis, conveyed to the CNS by thinly myelinated Aδ fibers.B) Heat sensors are below, conveyed to the CNS by unmyelinated C fibers.C) They have the smallest receptive fields.D) There are at least 6 types of thermoreceptors.E) Some thermal receptors responds to some chemicals (e.g. a type of cold receptors responds tomenthol).

An MD/PhD student was recording responses in differentcutaneous receptors and noted the following. One receptorwas inactive until the skin temperature was increased to33°C and then its firing rate continued to increase as the skintemperature was gradually raised to 45°C. A second receptorwas inactive until the skin temperature reached 46°C. Athird receptor was inactive at skin temperatures of 40°C, butthen steadily increases its firing rate as skin temperature waslowered to 24°C. For each of these cases, classify the type ofreceptor and the nonselective cation channel that was possiblyactivated.A. Receptor one is a thermal nociceptor and the channelactivated was TRPV1; receptor two is a thermal nociceptorand the channel activated was TRPA1; receptor three wasan innocuous cold receptor and the channel activated wasTRPV4.B. Receptor one is an innocuous warm receptor and thechannel activated was TRPV1; receptor two is a thermalnociceptor and the channel activated was TRPM8; receptorthree was an innocuous cold receptor and the channelactivated was TRPV3.C. Receptor one is an innocuous warm receptor and thechannel activated was TRPV3; receptor two is a thermalnociceptor and the channel activated was TRPV1; receptorthree was an innocuous cold receptor and the channelactivated was TRPM8.D. Receptor one is a thermal nociceptor and the channelactivated was TRPA1; receptor two is a thermal nociceptorand the channel activated was TRPV1; receptor three wasan innocuous cold receptor and the channel activated wasTRPM8

Which of the following statements is not related to Temperature Receptors?a-) Some thermal receptors responds to some chemicals (e.g. a type of cold receptorsresponds to menthol)b-) Cold sensors are just below epidermis, conveyed to the CNS by thinly myelinated Aδfibersc-) A type of free nerve ending responds to extreme heat, acid and capsaicin (hot pepper)

What does mechanoreceptors on the skin respond to?A) HeatB) ColdC) PainD) Pressure and vibrationsE) Smell

Free nerve endings respond toMultiple Choicetemperature change and pain.pressure and vibration.light touch and two-point discrimination.temperature change and pressure.chemicals.