The scientific discipline that investigates the structure of the body.
Gross (macroscopic) anatomy
the study of structures large enough to be seen with the naked eye.
Regional anatomy
all the body structures (muscles, bones, blood
vessels, nerves, etc.) in a given body region, such as the abdomen or leg, are examined at the same time.
Systemic anatomy
body is studied system by system.
Surface anatomy
internal body structures as they relate to the
overlying skin.
Microscopic anatomy
the study of structures that are too small to be seen with the naked eye.
Cytology
study of individual cells
Histology
study of tissues
Developmental anatomy
the study of the change in body structures over the course of a lifetime.
Embryology
concerns developmental changes that occur before birth
Pathological anatomy
study of structural changes associated with disease.
Radiographic anatomy
study of internal structures using specialized visualization techniques (X-rays or special scanning devices).
Molecular anatomy
study of biological molecules.
PHYSIOLOGY
study of the function of body parts.
PHYSIOLOGY
how all the body parts work and carry out their life-sustaining activities.
Renal physiology
concerns kidney function and urine production
Neurophysiology
explains the workings of the nervous system
Cardiovascular physiology
examines the operation of the heart and blood vessels
Atoms
tiny building blocks of matter, combine to form molecules such as water and proteins.
Molecules
combine in specific ways to form organelles, which are the basic unit of living cells.
Cells
are the smallest units of living things.All cells have some common functions, but individual cells vary widely in size and shape, reflecting their unique functions in the body.
Cellular level
smallest unit of life, and varies widely in size and shape according to the cell’s function.
Chemical level
the simplest level of organization
Tissue level
groups of similar cells having a common function.
Epithelium
covers the body surface and lines its cavities.
Muscle
provides movement.
Connective
supports and protects body organs.
Nervous
provides a means of rapid internal communication by transmitting electrical impulses.
Nutrients
consumed chemical substances that are used for energy and cell building.
Oxygen
required by the chemical reactions that release energy from foods.
Water
the most abundant chemical substance in the body, provides an environment for chemical reactions and a fluid for secretions and excretions.
Normal body temperature
required for the chemical reactions of the body to occur at the proper rate.
Atmospheric pressure
must be within an appropriate range so that proper gas exchange occurs in the lungs.
Integumentary System
allows an organism to maintain separate internal and external environments, or separate internal chemical environments
Skeletal System
allows the organism to travel through the environment, and allows transport of molecules within the organism.
Muscular System
or irritability, is the ability to detect changes
in the internal or external environment and respond to them.
Nervous System
responsiveness to external and internal environments by activating muscles and glands.
Endocrine System
regulating body functions such as growth,
reproduction, and nutrition
Cardiovascular System
transportation of nutrients, waste, gases, and hormones throughout the body