CCMA Ch. 2 - Anatomy and Physiology

homeostasis

Maintenance of a stable internal environment.

basic unit of life

The cell.

Controls cell activities and contains genetic material.

What is the function of the nucleus?

Produce ATP/energy for the cell.

What is the function of mitochondria?

Epithelial, connective, muscle, and nervous tissue.

What are the four major tissue types?

Covering body surfaces, lining cavities, secretion, absorption, and protection.

What is epithelial tissue responsible for?

Support, binding, protection, storage, and transport.

What is connective tissue responsible for?

Contraction and movement.

What is the function of muscle tissue?

Communication through electrical and chemical signals.

What is the function of nervous tissue?

A control mechanism that reverses a change to restore homeostasis.

What is negative feedback?

A control mechanism that intensifies a response until an endpoint occurs, such as childbirth or clotting.

What is positive feedback?

All chemical processes in the body.

What is metabolism?

anabolism

Building larger molecules from smaller molecules.

catabolism

Breaking larger molecules into smaller molecules.

Cell -> tissue -> organ -> organ system -> organism.

What are the levels of organization from smallest to largest?

Provides a standard reference for body directions and locations.

What is the purpose of anatomical position?

A thin fluid that reduces friction between membranes.

What is serous fluid?

Cranial cavity and spinal/vertebral cavity.

What does the dorsal cavity contain?

Thoracic, abdominal, and pelvic cavities.

What does the ventral cavity contain?

Anatomy is structure; physiology is function.

What should students remember about structure and function?