Digestive, Excretory, and Nervous System Flashcards
Name the 4 main different types of waste produced by our bodies
1) urine
2) feces
3) sweat
4) carbon dioxide
What does the liver do?
it converts ammonia to urea
Tell me what the kidney filters out of the blood. What does this produce?
excess urea, salt, and water, it produces urine
Tiny tubes inside the kidney are called _______?
How do they filter blood?
Nephrons filter blood via diffusion
The glomerulus is a network of __________, and are the reason for the diffusion that takes place within the nephrons.
capillaries
Name the 2 types of digestion
Mechanical and Chemical Digestion
Tell me where mechanical digestion really happens.
When your teeth break dow food, as well as the churning of your stomach
Describe the enzymes and places where chemical digestion occurs in the mouth and stomach.
Amylase in saliva breaks down starch
Hydrochloric acids activate Pepsin
Protein is broken into Amino Acids
What is your small intestine lined with?
VILLI!
Which enzymes in the small intestine break down fats and lactose?
Lipase, bile, lactase
How do nutrients get absorbed into your bloodsream?
The nutrients in the villi, diffuse into the capillaries that surround it.
Briefly explain the purpose of the large intestine.
it reabsorbs water from food, and moves waste into the rectum
