Introduction to the Human Body

These flashcards cover key terms and definitions related to the anatomy and physiology of the human body as discussed in the lecture.

Anatomy

The study of the structure and organization of the body and the relationships of body parts to one another.

Physiology

The study of the function of the body and its parts.

Chemical Level

The simplest level of organization in the human body, composed of atoms and molecules.

Cellular Level

The level of organization where cells are formed from molecules.

Tissue Level

A group of similar cells that perform similar functions.

Organ Level

Consists of two or more tissues working together to perform specific functions.

Organ System Level

A group of organs that work together to perform specific system functions.

Homeostasis

The maintenance of a relatively stable internal environment by self-regulating physiological processes.

Negative-Feedback Mechanism

A regulatory mechanism that keeps physiological variables near their set point and stops automatically once set point is reached.

Positive-Feedback Mechanism

A regulatory mechanism that amplifies the original stimulus for a desired result and cannot stop on its own.