Category: CSIR NET Life Science Previous Year Questions and Solution on Thermoregulation

The following statements are made regarding the characteristic features of body temperature in humans: A. The core body temperature varies least with the changes of environmental temperature. B. During severe […]

Consider the following statements about thermoregulation in animals. A. It uses external environment to regulate internal body temperature B. It does not use external environment to regulate internal body temperature […]

In fever caused by bacterial infection, the set-point of the thermoregulatory mechanism is changed to a new point above 37OC. The following statements were proposed by a researcher to explain […]

There is evidence that following pyrogenic stimuli, cytokines produced by the CNS cause fever, possibly by local release of prostaglandins. Accordingly, the following statements have been proposed: A. Cytokines act […]

The mechanisms of thermogenesis in brown adipose tissue (BAT) in cold are described in the following proposed statements: A. A thermogenic uncoupling protein, UCP1 helps in the heat production in […]

Humans exposed to cold climate are able to maintain their body temperature. The physiological mechanisms operating in the condition were suggested in the following statements: A. The increased thermogenesis in […]

A visitor to a region of hot climate is more distressed by the heat than the regular resident. Within a few weeks, the visitor is more comfortable with the heat […]

Which one does NOT occur as a physiological adjustment during heat acclimatization? (1) Lowered threshold for start of sweating (2) Effective distribution of cardiac output (3) Improved skin blood flow […]

If the core body temperature of a human rises above normal, which of the following processes would be initiated sequentially for Thermo-regulation? (1) Peripheral vasodilation, increased rate of respiration, tachycardia. […]

Which one of the following routes is responsible for maximum amount of body heat loss in humans at an ambient temperature of 210C? (1) Radiation and conduction (2) Respiration (3) […]