Question 1

Lymph enters at lymph node at the ________.&#10;A) the cortical sinus&#10;B) efferent lymphatic vessel&#10;C) afferent lymphatic vessel&#10;D) none of the above

Accepted Answer

Lymph enters the lymph node through afferent lymphatic vessels, which bring in lymph from surrounding tissues. Efferent lymphatic vessels carry lymph out of the lymph node, but the question is asking specifically about where lymph enters the node. The cortical sinus is a part of the lymph node where lymphatic fluid drains and circulates, but it is not where lymph enters the node.

Question 2

Which of the following is a correct statement about lymphocytes?&#10;A) T cells are the precursors to B cells.&#10;B) B cells produce plasma cells, which secrete antibodies into the blood.&#10;C) The two main types of lymphocytes are T cells and macrophages.&#10;D) None of the above statements are correct.

Accepted Answer

B cells produce plasma cells, which secrete antibodies into the blood. T cells and macrophages are both types of lymphocytes, but T cells are not the precursors to B cells.

Question 3

Which of the following is NOT a function of lymph nodes?&#10;A) acting as a lymph filter&#10;B) producing lymph&#10;C) producing lymphoid cells&#10;D) none of the above

Accepted Answer

Lymph nodes do not produce lymph; rather, lymph is transported through the nodes, where they act as a lymph filter and lymphoid cells are produced.

Question 4

What are the main cells of the lymphatic system?&#10;A) lymph nodes&#10;B) red blood cells&#10;C) lymphocytes&#10;D) macrophages

Accepted Answer

Lymphocytes are the main cells of the lymphatic system, including B cells, T cells, and natural killer cells. Lymph nodes and macrophages are also important components, but they are not the main cells. Red blood cells are not part of the lymphatic system.

Question 5

The tonsils located at the base of the tongue are the ________.&#10;A) pharyngeal tonsils&#10;B) palatine tonsils&#10;C) lingual tonsils&#10;D) none of the above

Accepted Answer

The tonsils located at the base of the tongue are referred to as lingual tonsils. The pharyngeal tonsils are located in the back of the nasal cavity, the palatine tonsils are located on either side of the back of the throat, and neither of these are located at the base of the tongue.

Question 6

Lymph nodes produce lymphocytes in the ________ of the lymph node.&#10;A) capsule&#10;B) the deep cortex&#10;C) subcapsular sinus&#10;D) germinal center

Accepted Answer

Lymphocytes are produced in the germinal center of the lymph node.

Question 7

The thoracic duct and the right lymphatic duct both drain into which vein?&#10;A) brachial&#10;B) subclavian&#10;C) axillary&#10;D) vena cava

Accepted Answer

Both the thoracic duct and the right lymphatic duct drain into the subclavian vein, which is located near the collarbone.

Question 8

Which of the following is NOT a Mucosa-Associated Lymphoid Tissue (MALT)?&#10;A) appendix&#10;B) tonsil&#10;C) thymus&#10;D) intestines

Accepted Answer

The thymus is not considered a Mucosa-Associated Lymphoid Tissue (MALT) as it is not directly involved in the immune response to mucosal pathogens. The other options (appendix, tonsil, and intestines) are all considered MALT as they contain immune cells that help defend against pathogens that enter the body through mucosa.

Question 9

What gland in adults is responsible for the maturation of lymphocytes?&#10;A) pituitary&#10;B) pancreas&#10;C) thyroid&#10;D) thymus

Accepted Answer

The thymus is responsible for the maturation of lymphocytes, specifically T cells, in adults.

Question 10

Which of the following is NOT considered a lymphatic structure?&#10;A) pancreas&#10;B) tonsils&#10;C) spleen&#10;D) Peyer's patches of the intestine

Accepted Answer

The pancreas is not considered a lymphatic structure. The other options (tonsils, spleen, and Peyer's patches) are all structures involved in the lymphatic system.

Question 11

Lymphatic capillaries are ________.&#10;A) completely impermeable&#10;B) more permeable than blood capillaries&#10;C) less permeable than blood capillaries&#10;D) as permeable as blood capillaries

Accepted Answer

The answer of Lymphatic capillaries are ________.&#10;A) completely impermeable&#10;B) more...

Question 12

Which lymphatic structure drains lymph from the right upper limb and the right side of the head and thorax?&#10;A) thoracic duct&#10;B) right lymphatic duct&#10;C) lumbar trunk&#10;D) none of the above

Accepted Answer

The answer of Which lymphatic structure drains lymph from the...

Question 13

Small organs associated with lymphatic vessels are termed ________.&#10;A) lymph follicles&#10;B) lymph nodes&#10;C) axillary nodes&#10;D) none of the above

Accepted Answer

The answer of Small organs associated with lymphatic vessels are...

Question 14

Lymphatic vessels pass in and out of the spleen at the ________.&#10;A) red pulp&#10;B) hilus&#10;C) white pulp&#10;D) none of the above

Accepted Answer

The answer of Lymphatic vessels pass in and out of...

Question 15

The thoracic duct drains lymph from the all the following regions EXCEPT ________.&#10;A) right upper limb&#10;B) abdomen&#10;C) pelvis&#10;D) lower limbs

Accepted Answer

The answer of The thoracic duct drains lymph from the...

Question 16

Lymph leaves a lymph node via ________.&#10;A) afferent lymphatic vessels&#10;B) the cortical sinus&#10;C) efferent lymphatic vessels&#10;D) none of the above

Accepted Answer

The answer of Lymph leaves a lymph node via ________.&#10;A)...

Deck 38: Lymphatic System