Human Digestive System

All Sorts

100

What is the name of the nutritional guide symbol that we now use to visually assess what we should eat daily?

My Plate

200

______________ is the process of breaking down food into forms that the body can use. 

Digestion

300

The first part of the digestive system is the ___________.

mouth

400

_________ is the clear liquid in the mouth that begins the digestive process.

Saliva

500

__________ ___________ are substances that help break down food.

Digestive enzymes

Mouth

100

 A _________ is a damaged area that causes a hole in a tooth.

cavity

200

Your side and back teeth ______ and _____ food into even smaller pieces.

crush, grind

300

You can use your front teeth to ______ or ______ off food.

bite, tear

400

All teeth are covered with a coating of _______. _______ is a hard covering that protects the teeth from the pressures of biting and chewing food.

Enamel

500

A ________ ______ is a special cluster of cells that react to chemicals in food.  

taste bud

Five Tastes

100

 _______ is the taste of lemons or dill pickles. 

Sour

200

Scientists have identified five different tastes:

sweet, ______, salty, bitter, and umami. 

sour

300

Unsweetened chocolate and coffee have a _______ taste.

bitter

400

 Cheeses, tomatoes, and meats have a savory taste. This savory taste is called _________.

umami

500

The fifth taste was identified in 1908 by Japanese professor Kikunae Ikeda. He named the taste umami, which means “________.”

savory

Throat

100

The throat connects to two tubes. One leads to the ______. This tube is the passageway for air. 

lungs

200

The throat connects to _____ tubes.

a. 1

b. 2

c. 3

2

300

A ring of muscles that controls an opening is called a __________.

sphincter

400

The _________ covers the opening to the trachea. This keeps your food from going down the wrong passageway.

epiglottis

500

The __________ is the tube that connects the throat

to the stomach. 

esophagus

All Sorts

100

Your __________ is a stretchy bag made of muscle that digests swallowed food. 

stomach

200

Tiny fingerlike structures in the small intestine is called _______. 

a. umami

b. villi

c. sphincter 

villi 

300

________ juices are a mixture of digestive enzymes, water, and acid.

Gastric

400

___________ digestion is the process of breaking down food by using digestive enzymes.

Chemical

500

____________ digestion is the process of breaking down food into smaller pieces by grinding it.

Mechanical