terminology. Accountants have debits, credits, and balance sheets. Physicists have
quantums and quarks. Mathematicians have integrals and differentials. Mechanics
have carburetors and alternators. Educators have objectives, domains, and curricula.
b. To work in a legal field, you should know the meaning of quid pro quo. To
work in a medical field, you should know the meanings of terms such as proximal, distal,
sagittal, femur, humerus, thorax, and cerebellum.
1-4. KINDS OF ANATOMICAL STUDIES
a. Microscopic anatomy is the study of structures that cannot be seen with the
unaided eye. You need a microscope.
b. Gross anatomy by systems is the study of organ systems, such as the
respiratory system or the digestive system.
c. Gross anatomy by regions considers anatomy in terms of regions such as the
trunk, upper member, or lower member.
d. Neuroanatomy studies the nervous system.
e. Functional anatomy is the study of relationships between functions and
1-5. ORGANIZATION OF THE HUMAN BODY
The human body is organized into cells, tissues, organs, organ systems, and the
a. Cells are the smallest living unit of body construction.
b. A tissue is a grouping of like cells working together. Examples are muscle
tissue and nervous tissue.
c. An organ is a structure composed of several different tissues performing a
particular function. Examples include the lungs and the heart.
d. Organ systems are groups of organs which together perform an overall
function. Examples are the respiratory system and the digestive system.
e. The total organism is the individual human being. You are a total organism.