Anatomy and Function of Esophagus and Stomach

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What is the main function of rippling peristalsis in the lower stomach?

Activating digestive enzymes

Mixing food well (correct)

Absorption of nutrients

Neutralizing stomach acid

How does the pylorus function in the stomach?

Absorbs nutrients

Secretes digestive enzymes

Stores bile

Meters out chyme into the small intestine (correct)

Which substances are primarily absorbed in the small intestine by active transport?

Most nutrients (correct)

Lipids

Water

End products of digestion

How are lipids primarily absorbed in the small intestine?

Diffusion Signup and view all the answers

What is the main function of the Large Intestine?

Elimination of indigestible food Signup and view all the answers

What do goblet cells in the large intestine produce?

Mucus Signup and view all the answers

Which part of the large intestine sometimes becomes inflamed, leading to appendicitis?

Cecum Signup and view all the answers

What is the major dietary source of cholesterol?

Egg yolk Signup and view all the answers

Where are the sublingual glands located?

Under the tongue Signup and view all the answers

Which proteins contain all essential amino acids?

Complete proteins from animal products Signup and view all the answers

What is the purpose of saliva in the digestive process?

To dissolve starches Signup and view all the answers

Where are most vitamins found in terms of food groups?

Vegetables Signup and view all the answers

Which of the following organs is NOT considered an accessory digestive organ?

Colon Signup and view all the answers

Which type of foods are most mineral-rich?

Vegetables and legumes Signup and view all the answers

During which type of metabolism are larger molecules built from smaller ones?

Anabolism Signup and view all the answers

What is the main function of the pharynx and esophagus?

Serving as passageways to the stomach Signup and view all the answers

During deglutition, where does the buccal phase occur?

Mouth Signup and view all the answers

Which statement about peristalsis in the pharyngeal-esophageal phase is correct?

Peristalsis moves the bolus toward the stomach Signup and view all the answers

What is the function of the esophagus?

Conducts food by peristalsis Signup and view all the answers

What is the role of the tongue during deglutition?

Force the bolus into the pharynx Signup and view all the answers

Where does food enter the stomach?

Cardiac region Signup and view all the answers

What happens to the cardioesophageal sphincter during deglutition?

It opens when food presses against it Signup and view all the answers

What initiates the chemical breakdown of protein in the stomach?

Chyme Signup and view all the answers

Which enzyme is responsible for breaking down starch into maltose in the mouth?

Salivary amylase Signup and view all the answers

Which organ branches off from the pharynx?

Esophagus Signup and view all the answers

What term describes the internal folds of the stomach mucosa?

Rugae Signup and view all the answers

Which sphincter does food pass through to enter the small intestine from the stomach?

Pyloric sphincter Signup and view all the answers