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Exam 20: The Lymphatic System and Lymphoid Organs and Tissues

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Question 41

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The lymphatic capillaries are .

A) more permeable than blood capillaries
B) as permeable as blood capillaries
C) less permeable than blood capillaries
D) completely impermeable

E) None of the above
F) A) and D)

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Question 42

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Figure 20.1Using Figure 20.1, match the following: -Lymphatic collecting vessels.

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Question 43

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

Peyer's patches are found in the .

Lymphoid tissue is mainly reticular connective tissue.

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

Highly specialized lymph capillaries called _ are present in the villi of the intestinal mucosa.

The lymphatic capillaries function to absorb the excess protein- containing interstitial fluid and return it to the bloodstream.

Figure 20.1Using Figure 20.1, match the following: -How does the lymphatic system both help and hinder the spread of cancer through the body?

Figure 20.1Using Figure 20.1, match the following: -Entrance of thoracic duct into subclavian vein.

Antibodies that act against a particular foreign substance are released by .

All the lymphoid organs are well developed before birth.

The cisterna chyli collects lymph from the lumbar trunks draining the upper limbs and from the intestinal trunk draining the digestive organs.

Figure 20.2Using Figure 20.2, match the following: -Cortex.

Lymph capillaries are absent in all except which of the following?

Figure 20.2Using Figure 20.2, match the following: -Medullary cord.

Figure 20.1Using Figure 20.1, match the following: -What is the consequence of obstruction of the lymphatics?

Figure 20.1Using Figure 20.1, match the following: -Thoracic duct.

What is the special role of the thymus gland?

Which lymphatic structure drains lymph from the right upper limb and the right side of the head and thorax?