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Exam 20: The Lymphatic System and Lymphoid Organs and Tissues

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Question 21

Multiple Choice

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The blood testis barrier is to newly formed sperm cells as the blood thymus barrier is to ________.

A) plasma cells
B) white pulp
C) T lymphocyte precursors
D) mast cells

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Question 22

Multiple Choice

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Match the following: -Isolated clusters of lymph follicles found in the wall of the small intestine.

A) Peyer's patches
B) Lymph nodes
C) Thoracic duct
D) Lymph
E) Spleen

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Question 23

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Which of the following statements is FALSE regarding the spleen?

Define the term MALT.What is its function?

Lymphocytes reside temporarily in lymphoid tissue,then move to other parts of the body.

Where are the lymph node aggregations most dense?

What is the special role of the thymus gland?

Match the following: -Small organs intimately associated with lymphatic vessels.

The tonsils located at the base of the tongue are the ________.

When tissues are inflamed,lymphatic capillaries develop openings that permit uptake of large particles such as cell debris,pathogens,and cancer cells.

While passing through a village on safari you notice a man with one enormous leg and one normal-sized leg.What could have caused the increased size of the swollen leg?

Describe why the prognosis of cancer is best when there is no detectable spread from the region of the primary tumor to the lymph nodes.

How does the structure of a lymph node allow lymphocytes and macrophages to perform their protective function?

Which of the following does NOT contain a mucosa-associated lymphatic tissue?

Match the following: -Stores blood platelets.

A mother takes her son to the doctor and describes the following symptoms that she has observed.The child is running a fever,has flu-like symptoms,and his lymph glands are very swollen and sore to the touch.Of what significance are the swollen and sore lymph glands?

In the spleen,red pulp is involved in the immune functions and white pulp is involved in disposing of worn-out RBCs.

Match the following: -Largest lymphatic organ.

If even a small part of the spleen is left in a ten-year-old child,it will most likely regenerate itself.

Which of the following statements regarding the thymus is FALSE?