Digestive system quiz

quiz poop

scurvy

A condition caused by a lack of vitamin C.

function of the digestive system?

mechanical and chemical breakdown of food and the absorption of nutrients

Mucosa

protects tissues and carries absorption

Submucosa

glands, blood vessels, nerves

Muscular Layer

smooth muscle, pushes food

Serosa

lubricates surfaces

Villi

increase surface area for absorption of nutrients.

Peristalsis

pushes food down the tube

AMYLASE

enzyme breaks down starch into sugars

Mucus cells

break down food, lubrication during swallowing

Mucus

prevents stomach from digesting itself

Chief cells

secrete Pepsin. Parietal cells secrete HCl

PEPSIN

most important digestive enzyme for breaking down food

Chyme

paste, after food has been broken down, released then into the duodenum via the pyloric sphincter valve

PANCREAS

secretes insulin which breaks down sugars. Pancreatic Juice also breaks down fat