10 Questions
What term is used in biology to describe the state of steady internal physical and chemical conditions maintained by living systems?
Homeostasis
Which of the following is NOT a variable that is kept within certain pre-set limits in homeostasis?
Brain size
What component of a homeostatic control mechanism senses and responds to changes in the environment, either external or internal?
Receptor
Which of the following ions' concentrations need to be regulated despite changes in the environment, diet, or level of activity in living organisms?
Sodium
What is thought to be the central motivation for all organic action based on the concept of homeostasis?
Equilibrium
What is the main function of effectors in the context of homeostasis?
Receive signals from the control center
What type of receptor is the cannabinoid receptor type 1 (CB1) and where is it located?
Presynaptic neuron receptor
Which physiologist coined the term 'homeostasis'?
Walter Bradford Cannon
What is the significance of endocannabinoids (ECs) in the homeostatic process?
Regulate neurotransmitter release
What was the role of higher brain function in relation to homeostasis as described by Joseph Barcroft?
Stabilize internal environment
Explore the concept of homeostasis in biology, which refers to the state of steady internal physical and chemical conditions maintained by living systems. Learn about how organisms regulate body temperature, fluid balance, and other variables to achieve optimal functioning.
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