Digestive System Parts and Functions

Where do you start to chew your food?

• esophagus

• mouth

• large intestine

• stomach

What is the food tube called?

• mouth

• esophagus

• liver

• stomach

Where is food mixed with saliva?

• esophagus

• pancreas

• stomach

• mouth

Nutrients from digested food are absorbed in which digestive organ?

• Small Intestine

• Stomach

• Large Intestine

• Gallbladder

Tags

NGSS.MS-LS1-3

Match the following definitions with their vocabulary words.

• Mouth

• The first part of the digestive system and is where the process of digestion begins. It contains the teeth, tongue, and salivary glands, which work together to break down food and mix it with saliva to form a bolus, making it easier to swallow.

• Pancreas

• A muscular, sac-like organ in the digestive system that stores food, mixes it with gastric juices, and breaks it down into a semi-liquid state called chyme. The stomach also has a protective lining to prevent damage from the acidic environment.

• Stomach

• A glandular organ that plays a role in both the digestive and endocrine systems. It produces digestive enzymes that are secreted into the small intestine to break down food and also produces hormones, such as insulin and glucagon, to regulate blood sugar levels.

Tags

NGSS.MS-LS1-7

The ​ (a)   churns up the food and mixes it with acid, while the ​ (b)   absorbs most of the nutrients. The ​ (c)   absorbs most excess water.

• small intestine

• large intestine

• stomach

• mouth

• liver

Which of the following organs is primarily involved in the chemical digestion of proteins?

• Mouth

• Stomach

• Large intestine

• Esophagus

Which organ is responsible for producing bile, which helps in the digestion of fats?

• Pancreas

• Liver

• Gallbladder

• Stomach

Tags

NGSS.MS-LS1-7

What is the role of the gallbladder in the digestive system?

• To produce bile

• To store bile

• To absorb nutrients

• To digest proteins

Match the following

• gallbladder

• Stores bile until it's needed

• pancreas

• produces enzymes that help break down food; also produces insulin

• liver

• Produces bile (bile breaks down fat)