Upper Digestive System

Which body system uses acids to break down food into smaller molecules that your body can use?

• cardiovascular

• respiratory

• digestive

• nervous

Tags

NGSS.MS-LS1-7

The small flap of cartilage that closes when food passes is called the ________.

• Epiglottis

• Valve

• Trachea

• Bronchioles

What is the role of the epiglottis?

The inner walls of the stomach secrete _________.

• Mucus & hydrochloric acid

• Bile

• Lime

• Salt

Your large and small intestines are part of this body system.

• nervous

• digestive

• muscular

• skeletal

What does the liver secrets?

• Bile

• Pancreatic juice

Tags

NGSS.MS-LS1-3

Which part of the upper digestive system is responsible for the initial breakdown of carbohydrates?

• Mouth

• Esophagus

• Stomach

• Pharynx

What enzyme in saliva begins the digestion of starches?

• Pepsin

• Amylase

• Lipase

• Trypsin

The esophagus connects the throat to which organ?

• Stomach

• Liver

• Pancreas

• Small intestine

What is the primary function of the esophagus?

• Absorb nutrients

• Transport food to the stomach

• Break down proteins

• Produce digestive enzymes