Question 1

Which type of cells is present along with lymphocytes in the lymphatic organs, that helps engulf and destroy pathogens, and helps to activate the immune response?&#10;A)Neutrophils&#10;B)Fibroblasts&#10;C)Macrophages&#10;D)Astrocytes&#10;E)Red blood cells

Accepted Answer

Macrophages are present along with lymphocytes in the lymphatic organs and are involved in phagocytosis of pathogens and activation of the immune response. Neutrophils are part of innate immunity and are usually found in the inflammatory site. Fibroblasts are cells that produce collagen and help in wound healing. Astrocytes are a type of glial cell found in the central nervous system. Red blood cells do not have a role in immune response.

Question 2

Which of the following is not true of the structure of a lymph node?&#10;A)The hilum is the entry/exit point for blood vessels and (a)certain lymphatic vessel(s).&#10;B)Trabeculae are inward extensions of the capsule, that provide physical support.&#10;C)Lymphatic nodules are all located in the cortex of the node.&#10;D)A lymph node typically has one afferent lymphatic vessel and several efferent lymphatic vessels.&#10;E)All of these are true of the structure of a lymph node.

Accepted Answer

A lymph node typically has multiple afferent lymphatic vessels that bring lymph into the node and fewer efferent lymphatic vessels that carry filtered lymph away from the node.

Question 3

The adenoids are also called the pharyngeal tonsils.

Accepted Answer

This is true. The adenoids are a type of tonsil located in the back of the nasal cavity, near the opening of the Eustachian tube. They are also known as the pharyngeal tonsils.

Question 4

After being filtered by lymph nodes, lymph flowing through lymphatic collecting vessels drains directly into&#10;A)afferent lymphatic vessels.&#10;B)lymphatic capillaries.&#10;C)lymphatic trunks.&#10;D)the subclavian veins.&#10;E)collecting ducts.

Accepted Answer

Lymph flowing through lymphatic collecting vessels is filtered by lymph nodes and then drains into larger vessels known as lymphatic trunks. These trunks then drain into either the thoracic duct or the right lymphatic duct, which in turn empty into the venous system.

Question 5

In the spleen, the white pulp contains ________ and the red pulp contains ________.&#10;A)red blood cells; neutrophils, basophils, and eosinophils&#10;B)neutrophils; monocytes&#10;C)mostly macrophages; mainly lymphocytes&#10;D)mostly red blood cells with some lymphocytes and macrophages; mainly lymphocytes&#10;E)mainly lymphocytes; mostly red blood cells with some lymphocytes and macrophages

Accepted Answer

The white pulp of the spleen is rich in lymphocytes, which are involved in the immune response, while the red pulp primarily contains red blood cells along with some lymphocytes and macrophages, which are involved in filtering the blood and removing old or damaged red blood cells.

Question 6

Which of the following is/are not considered to be (an)organ(s)of the lymphatic system?&#10;A)Spleen&#10;B)Thymus&#10;C)Lymph nodes&#10;D)Tonsils&#10;E)All of these are considered to be organs of the lymphatic system.

Accepted Answer

All of the options listed (Spleen, Thymus, Lymph nodes, Tonsils) are considered organs of the lymphatic system, each playing a role in immune function and the maintenance of bodily fluids.

Question 7

The thymus is responsible for the maturation of B-lymphocytes.

Accepted Answer

The thymus is responsible for the maturation of T-lymphocytes, not B-lymphocytes. B-lymphocytes mature in the bone marrow.

Question 8

Most of the fluid that filters out of the blood plasma of the capillaries into the tissue spaces will become lymph.

Accepted Answer

Most of the fluid that filters out of the blood plasma into tissue spaces is reabsorbed back into the capillaries, while only a small portion becomes lymph.

Question 9

The largest vessels of the lymphatic system are the&#10;A)lymphatic collecting vessels.&#10;B)lymph nodes.&#10;C)collecting ducts.&#10;D)lymphatic capillaries.&#10;E)lymphatic trunks.

Accepted Answer

The collecting ducts are the largest vessels in the lymphatic system, as they collect lymph from larger regions of the body and drain it into the venous system.

Question 10

The thymus is the largest lymphatic organ in the body.

Accepted Answer

The thymus is not the largest lymphatic organ in the body. The spleen is the largest lymphatic organ.

Question 11

When blood plasma filters out of capillaries to become interstitial fluid, most of the ________ are left behind in the capillaries.&#10;A)plasma proteins&#10;B)lipids&#10;C)carbohydrates&#10;D)nutrients&#10;E)oxygen molecules

Accepted Answer

The answer of When blood plasma filters out of capillaries...

Question 12

Which of the following lymphatic trunks drains the upper limbs?&#10;A)Lumbar trunks&#10;B)Jugular trunks&#10;C)Bronchomediastinal trunks&#10;D)Brachial trunks&#10;E)Subclavian trunks

Accepted Answer

The answer of Which of the following lymphatic trunks drains...

Question 13

Bacteria on a splinter in your shoulder would be filtered by lymph nodes in the ________ region.&#10;A)axillary&#10;B)inguinal&#10;C)thoracic&#10;D)supratrochlear&#10;E)cervical

Accepted Answer

The answer of Bacteria on a splinter in your shoulder...

Question 14

Which lymphatic trunks merge to form the cisterna chyli?&#10;A)Subclavian and bronchomediastinal&#10;B)Lumbar and intestinal&#10;C)Inguinal and lumbar&#10;D)Intestinal and subclavian&#10;E)Intestinal and pelvic

Accepted Answer

The answer of Which lymphatic trunks merge to form the...

Question 15

Which of the following organs does not contain lymphocytes?&#10;A)Thymus&#10;B)Spleen&#10;C)Red bone marrow&#10;D)Tonsils&#10;E)All of these organs contain lymphocytes.

Accepted Answer

The answer of Which of the following organs does not...

Deck 50: Lymphatic System