Anatomy and Physiology 2e 1.2

anatomy

the scientific study of the body's structures.

Gross anatomy

is the study of the larger structures of the body, those visible without the aid of magnification

microscopic anatomy

the study of structures that can be observed only with the use of a microscope or other magnification devices

Regional anatomy

is the study of the interrelationships of all of the structures in a specific body region

systemic anatomy

is the study of the structures that make up a discrete body system—that is, a group of structures that work together to perform a unique body function.

physiology

is the scientific study of the chemistry and physics of the structures of the body and the ways in which they work together to support the functions of life.

Homeostasis

is the state of steady internal conditions maintained by living things.

organelles

m, a water-based cellular fluid together with a variety of tiny functioning units

tissue

is a group of many similar cells (though sometimes composed of a few related types) that work together to perform a specific function.

organ

is an anatomically distinct structure of the body composed of two or more tissue types.

organ system

is a group of organs that work together to perform major functions or meet physiological needs of the body.

organism

is a living being that has a cellular structure and that can independently perform all physiologic functions necessary for life.