Digestive System Worksheet

Which of the following is NOT a function of the digestive system?

• Transporting food along the digestive tube

• Breaking down food into its smallest molecules

• Producing red blood cells

• Transferring digested food molecules into the blood capillaries

Tags

NGSS.MS-LS1-7

What is the main function of the alimentary canal?

• To release digestive enzymes

• To store nutrients

• To transport food from the mouth to the anus

• To filter waste from the blood

Which layer of the alimentary canal wall is responsible for smooth muscle contractions?

• Mucus membrane (mucosa)

• Submucosa

• Muscularis externa

• Serous layer (serosa)

What is the difference between peristalsis and segmentation in the digestive system?

• Peristalsis is voluntary, segmentation is involuntary

• Peristalsis propels food, segmentation mixes food

• Peristalsis occurs only in the mouth, segmentation only in the stomach

• Peristalsis digests food, segmentation absorbs nutrients

Which accessory organs release secretions into the digestive canal?

• Liver, gallbladder, pancreas

• Heart, lungs, kidneys

• Spleen, appendix, thymus

• Brain, spinal cord, nerves

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

• Grinding food

• Absorbing nutrients

• Aiding in swallowing and the process of chewing food

• Producing digestive enzymes

Which type of teeth are responsible for tearing food?

• Molars

• Bicuspids

• Canines (cuspids)

• Incisors

Where are the submandibular salivary glands located?

• Below the tongue

• Below the jaw

• Anterior to each ear

• Behind the pharynx

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

• It produces digestive enzymes

• It is a shared area with the respiratory system and passageway to the esophagus

• It absorbs nutrients

• It stores bile

What is the function of the rugae in the stomach?

• To secrete digestive enzymes

• To allow the stomach to expand

• To absorb nutrients

• To mix food with bile