Thermoregulation

Which is the process the body uses to control its internal temperature?

• inhalation

• body thermostat

• thermoregulation

• exhalation

Answer explanation

thermo = temerature and regulation = control

Homeostatic cooling mechanisms include

• piloerection and panting

• panting and vasoconstriction

• sweating and piloerection

• sweating and vasodilation

temperature regulation center in the brain of a human

• hypothalamus

• thermoregulation

• receptor

• negative feedback

Maintaining body temperature is an example of a:

• negative feedback loop

• positive feedback loop

What is the evaporation of a liquid to cool the body?

• Shivering

• Sweating

• Vasodilation

• Vasoconstriction

If the environment gets cold, we will often shiver in order to:

• keep body temperature the same as the external temperature

• decrease body temperature

• increase body temperature

• regulate blood pressure

A student walks into a cold room.

Which of the following happens to his body?

• Sweating and vasodilation of blood vessels.

• Shivering and vasoconstriction of blood vessels

• Sweating and vasoconstriction of blood vessels.

• Shivering and vasodilation of blood vessels.

Heat loss through sweat is referred to as:

• Evaporation

• Radiation

• Conduction

• Convection

Choose Corrective mechanisms when body temperature increases

• Hair lies flat

• Hair stands erect

• Blood vessel dilates

• Blood vessel constricts

• More sweats is produced

Choose corrective mechanisms when body temperature decreases

• Hair Lies flat , blood vessel dilates

• Hair stands erect , blood vessel constricts

• Skeletal muscles move passively

• Skeletal muscle move actively - shivering

• decrease sweating