The Endocrine System
Alongside the fast electrical signals of the nervous system, your body has a slower chemical control network: the endocrine system. It uses hormones to manage growth, energy, mood, and much more. Understanding how glands and hormones work rounds out the picture of how the body coordinates itself. This lesson explains the endocrine system and how […]
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 […]
