Structure and Function of Brain
100

An organism's process for maintaining a stable internal environment. 

What is Homeostasis? 

200

Maintain homeostasis, regulate ANS, control biological drives and behavior, cycle of sleep and wakefulness, circadian rhythms, etc. 

What are brain functions and activities?   

300

A chemical substance that functions as a neuro-messenger 

What is a neurotransmitter? 

400

The fluctuations of various physiological and behavioral patterns over a 24-hour cycle. 

What is Circadian rhythms?  

500

Brainstem, Cerebellum and Cerebrum 

What are the 3 major parts of the brain?