Chapter 21 The Lymphatic System and Immunity

Complete Chapter Questions And Answers
 

Sample Questions

1.
Which of the following is not a function of the lymphatic and immune system?
A)
Draining excess interstitial fluid
B)
Maintaining water homeostasis in the body
C)
Transporting dietary lipids
D)
Carrying out immune responses
E)
All of the above are functions of the lymphatic and immune system.

Ans:  B Difficulty:  easy

2.
What is the major difference between lymph and interstitial fluid?
A)
Composition of electrolytes
B)
White blood cells are present in lymph
C)
Location
D)
Types of proteins present
E)
Red blood cells are present in interstitial fluid

Ans:  C Difficulty:  easy

3.
Lack of resistance is also known as:

A) Pathogenic B) Innate C) Specific D) Susceptibility E) Lymphatic

Ans:  D Difficulty:  easy

4.
Describe how lymphatic capillaries are one-way only vessels.
Ans:
The ends of the endothelial cells in the wall of the lymphatic capillary overlap. When pressure is higher in the interstitial fluid than in the lymph, the cells separate slightly allowing interstitial fluid into the vessel. When pressure is greater inside, the cells are tightly packed, not allowing the lymph to cross back into the interstitial fluid.

Difficulty:  medium

5.
Which of the following is not considered an organ of the immune system?

A) Spleen B) Lymph node C) Red bone marrow D) Thymus E) Pancreas

Ans:  E Difficulty:  easy