FREE BIOLOGY AND STUDY GAMES ABOUT CH. 20: LYMPH

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FREE BIOLOGY AND STUDY GAMES ABOUT CH. 20: LYMPH

SYSTEM EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -40 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: What are the functions of the lymphatic system?

Answer:

• Drain excess interstitial fluid

• Transport dietary lipid

• Carry our immune responses

Question 2: What is an antigen?

Answer:

anything the body sees as foreign

• bacteria

• viruses

• mismatched RBCs

• cancer cells

Question 3: What do the T cells and B cells do?

Answer:

protect the body against antigens.Question 4: True or False: Lymph enters via AFFERENT lymphatic vessels then exits via EFFERENT vessels.

Answer:

True

Question 5: Does lymph enter via afferent vessels?

Answer:

Yes

Question 6: What does the red pulp contain in the spleen?

Answer:

remaining splenic tissure of worn-out RBCs

Question 7: What are the two functions of lymph nodes? (cleanse and examine)

Answer:

• filtration- (cleanse) macrophages destroy microorganisms and debris

• immune system activation- (examine) monitor for antigens and mount an attack against them

Question 8: What are minivalves?

Answer:

One-way gates that allow

• interstitial fluids to enter lymph capillaries

• do not allow lymph to escape from the capillaries

Question 9: True or False: Once interstitial fluid enters lymphatics, it is called lymph

Answer:

True

Question 10: What does the white pulp contain in the spleen?

Answer:

Mostly lymphocytes Question 11: True or False: Lymph is delivered into two large ducts.

Answer:

False. It is delivered into ONE OF TWO ducts.

Question 12: What do the lymph vessels/lymphatics include?

Answer:

• lymphatic capillaries

• lymphatic collecting vessels

• lymphatic trunks and ducts

Question 13: True or False: T & B cells are both matured in the thymus.

Answer:

False. They are both made in the bone marrow, however, T cells mature (become immunocompetent) in the thymus and b cells mature in the bone marrow.Question 14: True or False: The Lymphatic system is a two-way system.

Answer:

False, it is a one-way system. Lymph flows toward the heart and dumps into the circulatory system.

Question 15: What is MALT?

Answer:

Mucosa-associated lymphatic tissue

Question 16: Lymphatic collecting vessels

Answer:

• have the same three tunics as veins

• have thinner walls with more internal valves

• anastomose (merge) more frequently

Question 17: How are lymphatic trunks formed?

Answer:

By the union of the largest collecting ducts

Question 18: How does lymph exit?

Answer:

Via Efferent vessels (E for exit)

Question 19: What do T cells do? What do B cells do?

Answer:

T cells-

• manage the immune system

• attack and destroy foreign cells

B cells-

• Produce plasma cells, which secrete antibodies

• antibodies immobilize antigens

Question 20: What do peyer's patches and the appendix do?

Answer:

• destroy bacteria, preventing them from breaching intestinal wall

• generate "memory" lymphocytes

Question 21: What do spleen macrophages salvage and store for reuse in the bone marrow?

Answer:

Iron

Question 22: Do B cells make antibodies?

Answer:

No, plasma does.