Question 1

Serous acini have ions similar to mucous acini but do not have mucins. A mucous secretion is thinner and more watery.

Accepted Answer

A)   Both statements are true.
B)   The first statement is true; the second is false.
C)   The first statement is false; the second is true.
D)   Both statements are false.E) B) and D)
F) A) and D) B

Question 2

Each of the following is true of salivary duct systems EXCEPT one. Which is the EXCEPTION?

Accepted Answer

A)   Depending on their size, salivary glands have varying numbers of lobules.
B)   Intralobulated refers to ducts that are located within the tubule.
C)   Interlobulated refers to ducts within connective tissue between lobules of the gland.
D)   Striation only occurs in interlobular ducts.E) None of the above
F) C) and D)

Question 3

Secretory control comes from the central nervous system. Control of secretion is tied to chewing, taste, and smell.

Accepted Answer

A)   Both statements are true.
B)   The first statement is true; the second is false.
C)   The first statement is false; the second is true.
D)   Both statements are false.E) A) and B)
F) C) and D)

Question 4

With electron microscopy mucous cells appear empty and frothy because they stain exceptionally well.

Accepted Answer

A)   Both the statement and the reason are correct and related.
B)   Both the statement and the reason are correct but are NOT related.
C)   The statement is correct, but the reason is NOT correct.
D)   The statement is NOT correct, but the reason is correct.
E)   NEITHER the statement NOR the reason is correct.F) A) and D)
G) B) and C)

Question 5

During formation, the "future saliva" is packaged by a membrane within the

Accepted Answer

A)   Endoplasmic reticulum
B)   Golgi apparatus
C)   Cytoplasm
D)   MitochondriaE) B) and C)
F) A) and D)

Question 6

Which of the following are functions of saliva (select all that apply) ?

Accepted Answer

A)   It acts as a buffer.
B)   It has immunoglobulins to combat illness.
C)   It carries an enzyme to break down fats.
D)   It helps to prepare the bolus of food when swallowing.E) B) and C)
F) All of the above

Question 7

The demilune surrounds the salivary gland and aids in the secretion of saliva. This structure has a muscular component and long cellular projections.

Accepted Answer

A)   Both statements are true.
B)   The first statement is true; the second is false.
C)   The first statement is false; the second is true.
D)   Both statements are false.E) A) and B)
F) None of the above

Question 8

Each of the following accurately describes intercalated ducts EXCEPT one. Which is the EXCEPTION?

Accepted Answer

A)   Intercalated ducts are large and interlobulated.
B)   They drain directly into the acini.
C)   The cells of intercalated ducts are slightly taller than their nuclei.
D)   Intercalated ducts deliver secretions unchanged to the next set of ducts.E) B) and C)
F) All of the above A

Question 9

Which acini are MOST likely to have serous demilunes?

Accepted Answer

A)   Mucous
B)   Serous
C)   Seromucous
D)   All of the aboveE) All of the above
F) A) and C)

Question 10

Surrounding the acini are myoepithelial cells that inhibit salivary secretion because these cells have the ability to contract like a muscle.

Accepted Answer

A)   Both statements are true.
B)   The first statement is true; the second is false.
C)   The first statement is false; the second is true.
D)   Both statements are false.E) B) and C)
F) A) and D)

Question 11

Intercalated ducts conserve water and electrolytes because ions such as sodium and potassium are reabsorbed by capillaries and lymphatic vessels surrounding striated interlobular ducts.

Accepted Answer

A)   Both the statement and the reason are correct and related.
B)   Both the statement and the reason are correct but are NOT related.
C)   The statement is correct, but the reason is NOT correct.
D)   The statement is NOT correct, but the reason is correct.
E)   NEITHER the statement NOR the reason is correct.F) A) and C)
G) B) and D) D

Question 12

Secretory function can be modified by each of the following EXCEPT one. Which is the EXCEPTION?

Accepted Answer

A)   Chewing
B)   Taste
C)   Smell
D)   Dehydration
E)   Tubelike acinar endpiecesF) B) and C)
G) C) and D)

Question 13

Mucous secretions contain 99% water.

Accepted Answer

A) True 
 B)False

Question 14

Which structure is the MOST likely to break down starches into long-chain sugars?

Accepted Answer

A)   Mucous acini
B)   Serous acini
C)   Seromucous acini
D)   Connective tissue
E)   Salivary ductsF) A) and E)
G) A) and D)

Question 15

Each of the following is carried in the saliva EXCEPT one. Which is the EXCEPTION?

Accepted Answer

A)   Lysosomes
B)   Sodium
C)   Potassium
D)   Bicarbonate
E)   Golgi apparatusF) A) and D)
G) B) and C)

Question 16

The primary function of excretory ducts is to carry saliva. However, the striated interlobular ducts also modify salivary content as the fluid passes through them.

Accepted Answer

A)   Both statements are true.
B)   The first statement is true; the second is false.
C)   The first statement is false; the second is true.
D)   Both statements are false.E) None of the above
F) A) and B)

Question 17

The acinus with the largest lumen is the serous type.

Accepted Answer

A) True 
 B)False

Question 18

Which ducts have mitochondria that appear striped when stained (select all that apply) ?

Accepted Answer

A)   All intralobular
B)   Intralobular intercalated
C)   Intralobular secretory
D)   All interlobular
E)   Some interlobularF) C) and D)
G) B) and C)

Question 19

Acini are the

Accepted Answer

A)   Mucous and serous secretions
B)   Connective tissue capsules
C)   Secretory endpieces
D)   Intratubular ductsE) A) and C)
F) A) and B)

Question 20

Serous acinus secretions are characterized by each of the following EXCEPT one. Which is the EXCEPTION?

Accepted Answer

A)   Serous secretions contain no mucins.
B)   More water content
C)   Small lumen
D)   Cuboidal in shape
E)   Primary source of amylaseF) A) and D)
G) A) and C)

Exam 25: Salivary Glands

Serous acini have ions similar to mucous acini but do not have mucins. A mucous secretion is thinner and more watery.

Correct AnswerverifiedB

Each of the following is true of salivary duct systems EXCEPT one. Which is the EXCEPTION?

Correct AnswerverifiedShow Answer

Secretory control comes from the central nervous system. Control of secretion is tied to chewing, taste, and smell.

Correct AnswerverifiedShow Answer

With electron microscopy mucous cells appear empty and frothy because they stain exceptionally well.

Correct AnswerverifiedShow Answer

During formation, the "future saliva" is packaged by a membrane within the

Correct AnswerverifiedShow Answer

Which of the following are functions of saliva (select all that apply) ?

Correct AnswerverifiedShow Answer

The demilune surrounds the salivary gland and aids in the secretion of saliva. This structure has a muscular component and long cellular projections.

Correct AnswerverifiedShow Answer

Each of the following accurately describes intercalated ducts EXCEPT one. Which is the EXCEPTION?

Correct AnswerverifiedA

Which acini are MOST likely to have serous demilunes?

Correct AnswerverifiedShow Answer

Surrounding the acini are myoepithelial cells that inhibit salivary secretion because these cells have the ability to contract like a muscle.

Correct AnswerverifiedShow Answer

Intercalated ducts conserve water and electrolytes because ions such as sodium and potassium are reabsorbed by capillaries and lymphatic vessels surrounding striated interlobular ducts.

Correct AnswerverifiedD

Secretory function can be modified by each of the following EXCEPT one. Which is the EXCEPTION?

Correct AnswerverifiedShow Answer

Mucous secretions contain 99% water.

Correct AnswerverifiedShow Answer

Which structure is the MOST likely to break down starches into long-chain sugars?

Correct AnswerverifiedShow Answer

Each of the following is carried in the saliva EXCEPT one. Which is the EXCEPTION?

Correct AnswerverifiedShow Answer

The primary function of excretory ducts is to carry saliva. However, the striated interlobular ducts also modify salivary content as the fluid passes through them.

Correct AnswerverifiedShow Answer

The acinus with the largest lumen is the serous type.

Correct AnswerverifiedShow Answer

Which ducts have mitochondria that appear striped when stained (select all that apply) ?

Correct AnswerverifiedShow Answer

Acini are the

Correct AnswerverifiedShow Answer

Serous acinus secretions are characterized by each of the following EXCEPT one. Which is the EXCEPTION?

Correct AnswerverifiedShow Answer

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A

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D

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