Question 1

The layers of the gastrointestinal tract wall from the inside layer outward in order are

Accepted Answer

A)   submucosa, muscularis, mucosa, serosa.
B)   serosa, submucosa, muscularis, mucosa.
C)   mucosa, submucosa, muscularis, serosa.
D)   muscularis, serosa, mucosa, submucosa.
E)   mucosa, muscularis, serosa, submucosa.

Question 2

What greatly increases the capacity of the stomach?

Accepted Answer

A)   crypts
B)   lumens
C)   polyps
D)   rugae
E)   diverticula

Question 3

Smooth muscles in the stomach are capable of mechanical digestion.

Accepted Answer

A) True 
 B)False

Question 4

What enzyme initiates the process of starch digestion in the mouth?

Accepted Answer

A)   salivary lipase
B)   salivary protease
C)   salivary sucrase
D)   salivary amylase
E)   salivary lactase

Question 5

When Sheree opened the abdominal cavity of her preserved frog, it seemed to be filled with a dark brown organ. This is the

Accepted Answer

A)   liver.
B)   pancreas.
C)   gallbladder.
D)   stomach.
E)   large intestine.

Question 6

Small growths arising from the epithelial lining of the colon are called

Accepted Answer

A)   cysts.
B)   villi.
C)   polyps.
D)   lacteals.
E)   wheals.

Question 7

A diet rich in what vitamins may reduce the chance of free radicals that can cause health problems?

Accepted Answer

A)   C and B12
B)   C, E, and A
C)   D and C
D)   D, C, and E
E)   B12, C, and E

Question 8

What is the major function of the colon?

Accepted Answer

A)   digestion/absorption
B)   form feces
C)   churning foodstuffs
D)   passageway only
E)   eliminate iron

Question 9

The fleshy extension of the soft palate is known as the

Accepted Answer

A)   epiglottis.
B)   uvula.
C)   pharynx.
D)   adenoid.
E)   cecum.

Question 10

Which of following is not considered an accessory organ of the digestive system?

Accepted Answer

A)   liver
B)   salivary glands
C)   small intestines
D)   pancreas
E)   gallbladder

Question 11

The broad band of loose connective tissue beneath the mucosa that contains blood vessels, lymph, and nerves is called the

Accepted Answer

A)   mucosa.
B)   submucosa.
C)   muscularis.
D)   serosa.
E)   diverticulum.

Question 12

Why is the pancreas both an endocrine and an exocrine gland?

Accepted Answer

A)   It secretes bile through the pancreatic duct and insulin into the blood.
B)   It secretes insulin through the pancreatic duct and bile into the blood.
C)   It secretes secretin through the pancreatic duct and insulin into the blood.
D)   It secretes pancreatic juice through the pancreatic duct and insulin into the blood.
E)   It secretes insulin through the pancreatic duct and secretin into the blood.

Question 13

What prevents food from entering the nasal cavities?

Accepted Answer

A)   tonsils
B)   mandible and maxilla
C)   hard and soft palate
D)   cheeks
E)   salivary glands

Question 14

The stomach is bounded on both ends by a sphincter.

Accepted Answer

A) True 
 B)False

Question 15

A deficiency in which mineral leads to thyroid deficiency?

Accepted Answer

A)   iodine
B)   copper
C)   zinc
D)   selenium
E)   manganese

Question 16

Muscles that encircle tubes and act as circular valves are called

Accepted Answer

A)   frenula.
B)   sphincters.
C)   cannula.
D)   anastomoses.
E)   buccinators.

Question 17

The small intestine is longer than the large intestine.

Accepted Answer

A) True 
 B)False

Question 18

Pepsin is an enzyme that digests proteins at acidic pH. Therefore, it must act in the

Accepted Answer

A)   stomach.
B)   small intestine.
C)   mouth.
D)   large intestine.
E)   esophagus.

Question 19

Why is it necessary to include some carbohydrates in the diet?

Accepted Answer

A)   Carbohydrates are considered a "complete" nutrient.
B)   Some carbohydrates contain essential fatty acids.
C)   Some carbohydrates contain essential amino acids.
D)   Carbohydrates are the only source of energy for the body.
E)   Brain cells require glucose.

Question 20

Explain the events of swallowing.

Accepted Answer

Swallowing starts with a voluntary phase...

Exam 8: Digestive System and Nutrition

Which of following is not considered an accessory organ of the digestive system?

Correct AnswerverifiedShow Answer

When Sheree opened the abdominal cavity of her preserved frog, it seemed to be filled with a dark brown organ. This is the

Correct AnswerverifiedShow Answer

Explain the events of swallowing.

Correct AnswerverifiedSwallowing starts with a voluntary phase...View AnswerShow Answer

Muscles that encircle tubes and act as circular valves are called

Correct AnswerverifiedShow Answer

Pepsin is an enzyme that digests proteins at acidic pH. Therefore, it must act in the

Correct AnswerverifiedShow Answer

Why is it necessary to include some carbohydrates in the diet?

Correct AnswerverifiedShow Answer

Why is the pancreas both an endocrine and an exocrine gland?

Correct AnswerverifiedShow Answer

What prevents food from entering the nasal cavities?

Correct AnswerverifiedShow Answer

Smooth muscles in the stomach are capable of mechanical digestion.

Correct AnswerverifiedShow Answer

A deficiency in which mineral leads to thyroid deficiency?

Correct AnswerverifiedShow Answer

The broad band of loose connective tissue beneath the mucosa that contains blood vessels, lymph, and nerves is called the

Correct AnswerverifiedShow Answer

What enzyme initiates the process of starch digestion in the mouth?

Correct AnswerverifiedShow Answer

The small intestine is longer than the large intestine.

Correct AnswerverifiedShow Answer

The stomach is bounded on both ends by a sphincter.

Correct AnswerverifiedShow Answer

What is the major function of the colon?

Correct AnswerverifiedShow Answer

The layers of the gastrointestinal tract wall from the inside layer outward in order are

Correct AnswerverifiedShow Answer

A diet rich in what vitamins may reduce the chance of free radicals that can cause health problems?

Correct AnswerverifiedShow Answer

The fleshy extension of the soft palate is known as the

Correct AnswerverifiedShow Answer

What greatly increases the capacity of the stomach?

Correct AnswerverifiedShow Answer

Small growths arising from the epithelial lining of the colon are called

Correct AnswerverifiedShow Answer

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Swallowing starts with a voluntary phase...
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