Homeostasis

Question 1

What is homeostatis?

Answer 1

The maintenance of a constant internal environment

Question 2

What does homeostasis control?

Answer 2

• blood glucose concentration
• body temperature
• water levels

Question 3

All control systems have:

Answer 3

• receptors - cells that detect stimuli (changes in the environment)
• coordination centres - process the information recieved from the receptors (e.g. brain)
• effectors - bring about responses to bring the conditions in the body back to optimum levels (e.g. muscles)

Question 4

What is involved in automatic control systems?

Answer 4

Nervous and hormonal communication, which detect changes and respond to them.