Sense Organs
You know the world only through your senses. Your sense organs gather information about light, sound, chemicals, and touch, then hand it to the nervous system to interpret. Knowing the five sense organs and what each detects is a straightforward but frequently tested piece of biology. This lesson covers the five senses and the organs […]
Nervous System and Reflexes
Your nervous system is the body’s control center and communication network. It senses the world, decides what to do, and sends commands, all in a fraction of a second. Understanding its parts and how a reflex works explains everything from reading these words to yanking your hand off a hot stove. This lesson covers the […]
