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Digestive System Anatomy and Function Quiz

13 Questions

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Digestive System Anatomy and Function Quiz

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Questions and Answers

What is the total length of the alimentary canal (gastrointestinal tract)?

25-35 feet (correct)

30-40 feet

20-30 feet

35-45 feet

Which layer of the alimentary canal wall contains smooth muscle that increases surface area?

Submucosa

Mucosa

Muscularis mucosa (correct)

Muscularis

What is the function of the goblet cells in the epithelium layer?

Release hormones

Keep the area moist (correct)

Increase surface area

Replenish the epithelium

Which of the following is NOT an accessory organ of the digestive system?

Pharynx Signup and view all the answers

Which layer of the alimentary canal wall contains blood and lymphatic vessels, as well as glands and nerves?

Submucosa Signup and view all the answers

What is the function of the skeletal muscle at the ends of the alimentary canal?

Control what goes in and out Signup and view all the answers

What is the function of the hepatic portal system?

Carry away absorbed nutrients from the stomach to the liver Signup and view all the answers

Which glands secrete saliva containing IgA, making it antimicrobial?

Salivary glands Signup and view all the answers

What is the function of lingual lipase in digestion?

Convert lipids in the stomach Signup and view all the answers

Which part of the tooth is located within the gum and contains the pulp cavity?

Root Signup and view all the answers

What is the primary role of sphincters in the digestive system?

Separate different sections of the alimentary canal Signup and view all the answers

Which phase of swallowing occurs involuntarily under control of the medulla oblongata?

Pharyngeal phase Signup and view all the answers

What is peristalsis?

Automatic pushing of food through the alimentary canal Signup and view all the answers