Four Core Principles

What are the four core principles of A&P?

Feedback loops, structure-function, gradients, cell-cell communication.

What is complementarity of structure and function?

Structures are organized in ways that support their functions.

What is a gradient?

A difference in the amount of something between connected areas.

What are three types of gradients?

Concentration, pressure, temperature.

What is a concentration gradient?

Difference in concentration between connected areas.

What is a pressure gradient?

Difference in pressure between connected areas.

What is a temperature gradient?

Difference in temperature between areas.

Why is cell-cell communication important?

Coordinates body functions to maintain homeostasis.

How do cells communicate?

Electrical signals and chemical messengers.