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SAQ - Regulation of body temperature

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Questions and Answers

What is the optimum temperature for enzymes to function in the human body?

40 degrees Celsius

37 degrees Celsius (correct)

36 degrees Celsius

38.5 degrees Celsius

What is the result of a body temperature above 38.5 degrees Celsius?

Denaturation of enzymes (correct)

Slowing of enzyme function

Increased thermoregulation

Optimal enzyme function

What is the primary function of the negative feedback system in thermoregulation?

To regulate enzyme function

To generate heat

To detect and correct changes in core temperature (correct)

To maintain a fixed core temperature

What is the term for a body temperature below 36 degrees Celsius?

Hypothermia (B) Signup and view all the answers

What is the primary difference between thermoregulatory behaviours and physiological thermoregulation?

One is voluntary, the other is involuntary (D) Signup and view all the answers

What is the purpose of the human body's thermoregulation system?

To maintain homeostasis (D) Signup and view all the answers

What is the primary function of sensory afferent neurons in the thermoregulatory system?

To send electrical chemical signals to maintain homeostasis (A) Signup and view all the answers

What type of endings detect warmth in the body?

Ruffini endings (B) Signup and view all the answers

Where are the cell bodies of afferent neurons that innervate the head and face located?

Trigeminal ganglion (A) Signup and view all the answers

What is the result of the activation of the sympathetic nervous system in response to cold temperature?

Increased production of hormones that stimulate heat generation (B) Signup and view all the answers

What is the process by which brown adipose cells generate heat?

Thermogenesis (A) Signup and view all the answers

What is the result of shivering in response to cold temperature?

Generation of heat through the breakdown of ATP (A) Signup and view all the answers