Introduction to Human Anatomy and Physiology

These flashcards cover key vocabulary terms related to human anatomy and physiology, providing definitions for better understanding.

Anatomy

The study of the structure and organization of the human body.

Physiology

The study of body function.

Homeostasis

The process by which the body maintains a relatively constant internal environment despite changes in the external environment.

Gross Anatomy

The study of body structures that can be seen with the naked eye.

Microscopic Anatomy

The study of structures that must be seen with a microscope, including cells (cytology) and tissues (histology).

Homeostatic Control Mechanism

A regulatory process involving variables, stimuli, sensors, control centers, and effectors to maintain homeostasis.

Negative Feedback Loop

A process that counteracts a change in a variable to return to a set point.

Positive Feedback Loop

A process that amplifies change in a variable, leading to an increased response, moving the body away from homeostasis.

Directional Terms

Terms that explain the position of one body structure in relation to another, such as superior, inferior, anterior, and posterior.

Body Cavities

The ventral and dorsal cavities in the body that contain and protect internal organs.