Question

Temperature of human body is maintained by
A)Perspiration
B)Conduction and convection
C)Radiation
D)All of the above

Answer 1

Hint: Sensors in your central nervous system (CNS) transmit signals to your hypothalamus as the internal temperature increases. It sends signals to different organs and systems in your body in response. Through a number of mechanisms, they react.

Complete answer:
The baseline temperature is between 98 ° F (37 ° C) and 100 ° F (37.8 ° C) for the average individual. Your body has some temperature versatility. However it will impair the capacity of the body to work once you go to the extremes of body temperature. For example, you have "hypothermia" if your body temperature decreases to 95 ° F (35 ° C) or below. This condition will actually lead to heart arrest, brain injury or even death. If your body temperature increases as high as 107.6°F (42 °C), you will suffer brain injury or even death. The core temperature of the body is under the regulation of hypothalamus (in the brain) and is called the body's thermostat.

The hypothalamus in the brain), which is also considered the thermostat of the body, controls the central temperature. The hypothalamus reacts to different body-wide temperature receptors and makes biochemical changes to maintain a stable core temperature. By maintaining a near-equilibrium between heat gain(conduction) and heat loss, the human body controls temperature (convention). And transpiration (sweating) is mostly a means of thermoregulation in humans. Therefore, perspiration, conduction, convection and radiation regulate the temperature of the human body.

Hence, the correct answer is option (D)

Note: 1)If the body wants to warm up, so these routes include:
Vasoconstriction: Blood vessels get thinner under the eye. This lowers the flow of blood to the skin and keeps heat close to the hot inner body.
2)Thermogenesis: The skin, lungs, and cortex of the body absorb heat in a range of ways. For example, muscles may create heat by shivering.
3)Hormonal thermogenesis: The thyroid hormones increase metabolism. This increases the energy produced by the body and the amount of heat that it consumes.