Human Physiology

What is the science of studying the physiological functions in the human body on different levels?

Which process involves the use of energy for producing chemical substances?

What is the breaking down phase of metabolism, including the breakdown of complex, big molecules into smaller ones, mostly yielding energy?

Which term refers to the state of steady internal, physical, and chemical conditions maintained by living systems?

What type of feedback occurs when the effector opposes the stimulus and reverses the direction of change?

Introduction to Human Physiology

Physiology is the study of the functions of the human body at different levels, from cells to organs and systems.
Metabolism encompasses all the chemical processes occurring in the organelles of cells.
Anabolism involves the use of energy to produce chemical substances, while catabolism is the breaking down phase of metabolism, yielding energy.
Examples of anabolism include glycogenesis (synthesis of glycogen) and gluconeogenesis (synthesis of glucose), while glycolysis represents catabolism (glucose breakdown).
Homeostasis refers to the state of steady internal conditions maintained by living systems, such as body temperature and blood glucose levels.
Key elements in physiology include blood glucose level homeostasis and body temperature homeostasis (thermoregulation).
Feedback mechanisms, such as negative feedback, play a crucial role in maintaining homeostasis by opposing and reversing changes in the body, such as temperature or blood pressure.

Test your knowledge of human physiology with this quiz that covers the different levels of physiological functions in the human body, from cells to organs and systems. Explore topics such as metabolism and the essential tasks performed by the organism as a whole.