Q: Which of the following equations best represents the rate of lymph return to the bloodstream if 3 liters are returned per day?

$$\text{Rate} = \frac{3\ \text{L}}{24\ \text{hr}}$$

Question 1

Which of the following is NOT a primary function of the lymphatic system?

Accepted Answer

Transporting oxygen directly to tissues

Question 2

Lymphatic capillaries are characterized by which structural feature that allows interstitial fluid to enter but not exit?

Accepted Answer

Small flap-like valves formed by overlapping endothelial cells

Question 3

The right lymphatic duct drains lymph from which regions of the body?

Accepted Answer

Right arm and right side of the head and thorax

Question 4

Which mechanism is NOT involved in the movement of lymph through lymphatic vessels?

Accepted Answer

Active pumping by lymphatic valves

Question 5

If a patient has a blockage in the thoracic duct, which of the following would most likely occur?

Accepted Answer

Lymph accumulation in the left leg and abdomen

Question 6

Which cell type is responsible for producing antibodies in the lymphatic system?

Accepted Answer

Plasma cells derived from B cells

Question 7

A lymph node slows the flow of lymph by having fewer efferent vessels than afferent vessels. What is the primary benefit of this arrangement?

Accepted Answer

It allows lymphocytes and macrophages more time to filter and clean the lymph

Question 8

Which of the following best describes the function of the spleen's red pulp?

Accepted Answer

Disposal of aged red blood cells and bloodborne pathogens

Question 9

MALT (Mucosa-Associated Lymphoid Tissue) is found in all of the following EXCEPT:

Accepted Answer

Cardiac muscle tissue

Question 10

Which of the following equations best represents the rate of lymph return to the bloodstream if 3 liters are returned per day?

Accepted Answer

$$	ext{Rate} = \frac{3\ 	ext{L}}{24\ 	ext{hr}}$$

Question 11

A patient presents with severe localized swelling in a limb after surgery. Which homeostatic imbalance is most likely responsible?

Accepted Answer

Lymphedema

Question 12

Which of the following is TRUE regarding the thymus?

Accepted Answer

It is the site of T cell maturation

Question 13

Which structure is responsible for trapping and destroying bacteria and particulate matter in the tonsils?

Accepted Answer

Tonsillar crypts

Question 14

If a person has their spleen removed (splenectomy), which of the following is a likely consequence?

Accepted Answer

Reduced ability to filter bloodborne pathogens

Question 15

Which of the following best describes the function of Peyer's patches?

Accepted Answer

Destroy bacteria and generate memory lymphocytes in the distal small intestine

Question 16

A patient is diagnosed with Hodgkin's Disease. Which of the following best describes this condition?

Accepted Answer

A malignancy of lymphoid tissues

Question 17

Which equation best represents the relationship between lymph flow ($$F$$), pressure difference ($$\Delta P$$), and resistance ($$R) in $$the lymphatic system?

Accepted Answer

$$F = \frac{\Delta P}{R}$$

Question 18

Which of the following is a function of macrophages in the lymphatic system?

Accepted Answer

Phagocytose foreign substances and help activate lymphocytes

Question 19

Which of the following is a real-world consequence of elephantiasis?

Accepted Answer

Swelling of limbs due to lymphatic blockage by parasitic worms

Question 20

Which of the following best describes the role of reticular cells in lymphoid organs?

Accepted Answer

Produce the stroma that supports other cells

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