What is Physiology? PDF
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Qassim University
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Summary
This document explains the concept of physiology and outlines different levels of structural organization in the human body. It details the role of chemicals, cells, tissues, organs, and organ systems, emphasizing the importance of chemical reactions and interactions among cells.
Full Transcript
What is Physiology? The study of the normal biological function. Levels of Structural Organization in the Human Body: Chemicals Cells Tissues Organs Organ Systems The Chemical Level: The human body is composed of atoms organ...
What is Physiology? The study of the normal biological function. Levels of Structural Organization in the Human Body: Chemicals Cells Tissues Organs Organ Systems The Chemical Level: The human body is composed of atoms organized into molecules. Atoms and molecules undergo chemical reactions. Physiology involves the control of these reactions within the body. A- Cells: Basic and smallest living units, able to carry out all life processes. B- Tissues: Groups of cells of similar structure. Interaction among cells leads to functions, as single cells cannot effectively act alone.
