Digestive System Parts and Functions

What does saliva do?

• Chemically digests food in the mouth.

• Chemically digests food in the stomach

• Protects the stomach from digesting iteself

• Absorbs nutrients from food so the body has energy.

Muscle contraction that keep food moving alone in one direction through the digestive system.

• epiglottis

• nephrons

• peristalsis

• enzymes

Enzymes (chemicals) in your saliva help break down food while chewing.  This is...

• Mechanical digestion

• Chemical digestion

What is the main purpose for the digestive system ?

• to protect your organs

• to provide you with nutrients and energy

• to pump blood and transport oxygen through your boby

• to control breathing

What does the small intestine do?

• reabsorbs the water after the process of the system.

• Absorbs most of the end of the nutrients and minerals from where the food takes place.

• keeps the stomach in balance for when the system starts.

• Absorbs most of the food that's left from the process.

Which parts of the diagram is the small and large intestine?

• A~ small intestine

  E~ large intestine

• D~ small intestine

  E~ large intestine

• C~ large intestine

  B~ small intestine

• A~ large intestine

  C~ small intestine

• E~ small intestine

  D~ large intestine

Where does the digestive system start?

• The liver

• The throat

• The stomach

• The mouth

What does the salivary glands do for the digestive system?

• It produce saliva, which keeps the mouth and other parts of the digestive system moist.

• It produce moist, which keeps the mouth and other parts of the digestive system saliva.

• It produces ptyalin to make saliva for the mouth, so the system can start.

What are 2 MOST important organs of the digestive system?

• small intestines

• esophagus

• large intestines

• pharynx

What is the primary function of the stomach in the digestive system?

• A) To absorb nutrients into the bloodstream

• B) To break down food using acids and enzymes

• C) To transport food to the small intestine

• D) To produce bile for fat digestion

Tags

NGSS.MS-LS1-7