AP II Exam 3 Questions with 100 Verified

A&P II Exam #3 Questions with 100% Verified Correct Answers 2024/2025 The alimentary canal extends, in its entirety, from

• the mouth to the large intestine.
• the stomach to the small intestine.
• the liver to the gallbladder. D. the mouth to the anus - Correct Answer D

The digestive system

• ingests food, propels food, mechanically and chemically breaks down food, absorbs nutrients, and

defecates the remainder.

• mechanically and chemically assembles food from absorbed nutrients.
• sends cellular debris to lysosomes.
• absorbs nutrients in the mouth, pharynx, esophagus and stomach, and releases nutrients in the

intestines. - Correct Answer A The correct sequence for the layers in the walls of the alimentary canal from innermost to outermost is the

• mucosa, muscular layer, serosa, submucosa.
• mucosa, submucosa, muscular layer, serosa.
• serosa, muscular layer, mucosa, submucosa. D. submucosa, mucosa, serosa, muscular layer. -

Correct Answer B The _______ is the layer of the alimentary canal that absorbs nutrients.

• mucosa
• submucosa
• muscular layer
• serosa - Correct Answer A

Peristalsis occurs in the digestive tract

• from the pharynx to the anus. B. in the stomach and small intestine only.
• in the small and large intestines only.
• in the stomach, small intestine, and large intestine. - Correct Answer A 1 / 3

Activities of the digestive system generally increase when it is stimulated by A. sympathetic impulses.

• parasympathetic impulses. C. sensory impulses.
• somatic impulses. - Correct Answer B

The teeth that are best adapted for biting off hunks of food are the

• incisors.
• canines.
• bicuspids.
• molars. - Correct Answer A

The root canal of a tooth contains

• dentin.
• cementum.
• gingiva.
• blood vessels and nerves. - Correct Answer D

The mechanical breakup of food particles in the mouth is called

• mastication.
• salivation.
• peristalsis.
• absorption. - Correct Answer A

The uvula is

• a type of tooth.
• a projection from the soft palate.
• a flap of tissue that keeps food from entering the trachea. D. part of the tongue. - Correct Answer

B Because of their location, swollen palatine tonsils may interfere with

• breathing.
• swallowing. 2 / 3

• both breathing and swallowing.
• neither breathing nor swallowing. - Correct Answer C

Salivary amylase digests A. carbohydrates.

• proteins.
• fats.
• vitamins. - Correct Answer A

The functions of saliva include A.moistening, binding, and building up food particles; beginning chemical digestion of carbohydrates; and cleansing the esophagus.B.moistening, binding, and dissolving food particles; beginning chemical digestion of proteins; and cleansing the esophagus.C.moistening, binding, and building up food particles; beginning mechanical digestion of fats; and cleansing the teeth and mouth.D.moistening, binding, and dissolving food particles; beginning chemical digestion of carbohydrates; and cleansing the teeth and mouth. - Correct Answer D . The parotid glands are

• the largest salivary glands. B. the smallest salivary glands. C. under the tongue.
• in the lower jaw. - Correct Answer A

In the swallowing reflex,

• muscles pull the pharynx upward toward the food.
• the epiglottis closes off the top of the trachea.
• the tongue presses against the uvula and soft palate.
• all of the above. - Correct Answer D

The epiglottis is attached to the A. esophagus.

• / 3