NEET PG DENTAL EXAM

EMBRYOLOGY

ENDOCRINE GLANDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If the environment gets cold, we will often shiver in order to:
A
keep body temperature the same as the external temperature
B
decrease body temperature
C
increase body temperature
D
regulate blood pressure
Explanation: 

Detailed explanation-1: -Shivering-nerve impulses are sent by the hypothalamus to the skeletal muscles to bring about rapid contractions that generate heat. Shivering therefore helps raise the body temperature. Increase in metabolic rate-the liver produces extra heat in order to raise the temperature of the body.

Detailed explanation-2: -Prolonged exposure to cold will eventually use up your body’s stored energy. The result is hypothermia, or abnormally low body temperature. A body temperature that is too low affects the brain, making the victim unable to think clearly or move well.

Detailed explanation-3: -As the environment warms-up, the body tends to warm-up as well. The body’s internal “thermostat” maintains a constant inner body temperature by pumping more blood to the skin and by increasing sweat production. In this way, the body increases the rate of heat loss to balance the heat burden.

There is 1 question to complete.