The Digestive System

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Question 1

Free

Multiple Choice

Each of the following organs is a component of the digestive tract except the

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stomach.

pharynx.

esophagus.

bladder.

colon.

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Question 2

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Multiple Choice

Which of the following is an accessory organ of digestion?

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appendix

pancreas

spleen

colon

esophagus

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Question 3

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Multiple Choice

Digestion refers to the

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progressive dehydration of indigestible residue.

mechanical breakdown of food.

chemical breakdown of food.

mechanical and chemical breakdown of food.

release of water, acids, enzymes and buffers by organs.

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Question 4

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Multiple Choice

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

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mechanical processing

absorption

secretion

ingestion

filtration

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Question 5

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Multiple Choice

Which of the following descriptions best matches the term submucosal plexus?

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component of mucosa

sensory neural network

secretes a watery fluid

coordinates activity of muscularis externa

loose connective tissue layer containing blood vessels

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Question 6

Multiple Choice

Waves of muscular contractions that propel the contents of the digestive tract are called

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segmentation.

pendular movements.

peristalsis.

churning movements.

mastication.

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Question 7

Multiple Choice

The lamina propria and mucous epithelium are components of the

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serosa.

adventitia.

muscularis mucosa.

mucosa.

submucosa.

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Question 8

Multiple Choice

Which of the following descriptions best matches the term myenteric plexus?

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component of mucosa

sensory neural network

secretes a watery fluid

coordinates activity of muscularis externa

loose connective tissue layer containing blood vessels

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Question 9

Multiple Choice

Contraction of the ________ alters the shape of the intestinal lumen and moves epithelial pleats and folds.

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mucosa

submucosa

submucosal neural plexus

muscularis mucosa

adventitia

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Question 10

Multiple Choice

The ________ are double sheets of peritoneal membrane that suspend the visceral organs and carry nerves,lymphatics, and blood vessels.

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serosa

adventitia

mesenteries

fibrosa

lamina propria

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Question 11

Multiple Choice

Sensory nerve cells, parasympathetic ganglia, and sympathetic postganglionic fibers can be found in the

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mucosa.

serosa.

adventitia.

submucosal neural plexus.

lamina propria.

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Question 12

Multiple Choice

Sandwiched between the layer of circular and longitudinal muscle in the muscularis externa is the

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mucosa.

submucosa.

muscularis mucosa.

myenteric plexus.

submucosal neural plexus.

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Question 13

Multiple Choice

Large blood vessels and lymphatics are found in the

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mucosa.

submucosa.

muscularis.

adventitia.

serosa.

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Question 14

Multiple Choice

The layer of loose connective tissue that directly supports the digestive epithelium is the

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lamina propria.

muscularis mucosae.

submucosa.

submucosal neural plexus.

myenteric plexus.

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Question 15

Multiple Choice

A stratified squamous epithelial lining can be found in all of the following except in the

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anal canal.

esophagus.

stomach.

oropharynx.

oral cavity.

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Question 16

Multiple Choice

A feature of the digestive tract wall that increases surface area available for absorption is the

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transitional cells.

circular folds.

elastic cells.

rugae.

muscularis mucosa.

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Question 17

Multiple Choice

The ________ supports all but 25 cm of the small intestine and provides stability and limited movement.

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falciform ligament

greater omentum

mesentery proper

lesser omentum

diaphragm

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Question 18

Multiple Choice

Which of the following contains adipose tissue and provides padding for the anterior and lateral portions of the abdomen?

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falciform ligament

greater omentum

mesentery proper

lesser omentum

diaphragm

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Question 19

Multiple Choice

Which organ is responsible for dehydration and compaction of indigestible materials?

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small intestine

esophagus

large intestine

stomach

anus

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Question 20

Multiple Choice

The double-layer sheets of serous membrane that support the viscera are called

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peritoneal sheets.

mesenteries.

ascites.

the diaphragm.

the dorsal and ventral frenulums.

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