Anatomy is a branch of biology dealing with the structure of living things.The general term includes human anatomy, animal anatomy (zootomy) and plant anatomy (phytotomy). Anatomy is subdivided into gross anatomy (or macroscopic anatomy) and microscopic anatomy. Gross anatomy is the study of anatomical structures that can be seen by unaided vision. Microscopic anatomy is the study of minute anatomical structures assisted with microscopes, which includes histology (the study of the organization of tissues), and cytology (the study of cells).
Physiology is the study of the mechanical, physical, and biochemical functions of living organisms. It has traditionally been divided between plant physiology and animal physiology, but the principles of physiology are universal, no matter what particular organism is being studied. For example, what is learned about the physiology of yeast cells may also apply to human cells. The field of animal physiology extends the tools and methods of human physiology to non-human animal species. Plant physiology borrows techniques from both fields.
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