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Glossary of Anatomy and Physiology intro

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One aim of biology
the study of life, is to discover the unity and patterns that underlie this diversity.
Responsiveness
Organisms respond to changes in their immediate environment, this property is also called irritability.
Growth and differentiation
Growth of Organisms through the increase in size or number of their cells over a lifetime. In multicellular organisms, the individual cells become specialized to perform particular functions, this specialization is called differentiation. Both produce change in form and function.
Reproduction
Organisms reporduce, creating subsequent gernerations of similar organisms.
Movement
organisms are capable of producing movement, which maybe internal (transporting food, blood inside body) or external (moving through the environment).
Metabolism and Excretion
Metabolism provides energy for growth, resonsiveness, reprodction and movement. It requires absorption of certain minerals (nutrients) from environment to provide energy. Respiration refers to aborption, trnsport and use of oxygen by cells to generate energy efficiently.
Excretion is the elimination of potentially harmful waster products generated by metabolism.
Anatomy
Greek origins, means cutting open. The study of internal and exernal structures and the physical relationships among body parts.
Physiology
Study of how living organisms perform their vital functions.
Microscopic anatomy
Deals with strctures tat can't be seen without magnification. It includes Cytology and Histology.
Cytology
Analysis of the internal structure of individual cells.
Histology
Examination of tissues, groups of specialized cells and cell products that work together to perform specific functions. Tissues combine to form organs.
Gross anatomy (macroscopic anatomy)
Examination of relatively large structures and features usually visible with the unaided eye.
Human physiology
study of the functions of the human body. More specialties in physiology than in anatomy.

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