Control of Body Temperature Flashcards

1️⃣ Familiarise yourself with the flashcards:

  • Look through all the flashcards to see what’s on both sides.
  • Make sure you understand the information on each card. If something’s unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

  • Look at the question or prompt on each card and try to remember the answer before flipping it over.
  • Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

  • Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
  • Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It’s useful to remember specific examples to understand these concepts better.

What is thermoregulation and why is it important?

Thermoregulation is the control of internal body temperature, maintaining it at around 37°C, the optimal temperature for enzyme activity. It ensures cells and processes function properly.

What role does the hypothalamus play in temperature regulation?

The hypothalamus acts as the body’s thermostat, controlling processes that warm us up or cool us down.

It contains thermoreceptors sensitive to blood temperature and receives signals from thermoreceptors in the skin.

How does the body respond to an increase in temperature?

In response to an increase in temperature, blood vessels near the skin dilate (vasodilation) to increase blood flow and lose more heat. Sweat glands also produce sweat, which cools the body as it evaporates.

What happens during vasoconstriction when body temperature decreases?

During vasoconstriction, blood vessels near the skin constrict, reducing blood flow and heat loss. This helps to retain body heat.

What is the purpose of shivering when body temperature drops?

Shivering involves rapid muscle contractions that generate heat through increased respiration, helping to warm the body.

How do thermoreceptors contribute to thermoregulation?

Thermoreceptors in the hypothalamus and skin detect changes in blood temperature and send signals to the thermoregulatory centre to initiate appropriate responses to maintain stable body temperature.

You’ve used 10 of your 10 free revision notes for the month

Sign up to get unlimited access to revision notes, quizzes, audio lessons and more

Sign up