Question 1

The lymph nodes, thymus gland, spleen, and tonsils:&#10;A) are confined to the thoracic cavity.&#10;B) are confined to the ventral cavity.&#10;C) are lymphoid organs.&#10;D) synthesize erythrocytes.

Accepted Answer

The lymphatic organs are the lymph nodes, thymus gland and spleen; they are the sites where most immune responses occur. Lymphatic nodules include the tonsils, MALT, Peyer's patches, and the appendix.

Question 2

Which of the following best describes a tonsil?&#10;A) a partially encapsulated lymph node&#10;B) inguinal lymph nodes&#10;C) salivary gland&#10;D) goblet cell

Accepted Answer

Tonsils are partially encapsulated lymph nodes in the throat area.

Question 3

On which set of tonsils is a tonsillectomy most often performed?&#10;A) adenoids&#10;B) palatine&#10;C) pharyngeal&#10;D) lingual

Accepted Answer

Palatine tonsils (2) are small masses of lymphoid tissue located at the opening of the oral cavity into the pharynx. A tonsillectomy is most often performed on this particular set of tonsils.

Question 4

The adenoids are:&#10;A) tonsils.&#10;B) located within the inguinal region.&#10;C) located within the mediastinum.&#10;D) axillary lymph nodes.

Accepted Answer

Pharyngeal tonsil (1) is also called the adenoid and is located near the opening of the nasal cavity in the upper pharynx.

Question 5

What is the name of the substance from which lymph is made?&#10;A) aqueous humor&#10;B) cerebrospinal fluid&#10;C) hemoglobin&#10;D) tissue or interstitial fluid

Accepted Answer

Tissue fluid or interstitial fluid is the name of the substance from which lymph is made.

Question 6

Which of the following is least related to the spleen?&#10;A) destroys and phagocytoses old, worn-out red blood cells&#10;B) lymphoid organ&#10;C) a vital organ (cannot live without the spleen)&#10;D) left upper quadrant

Accepted Answer

Blood enters the spleen through the splenic artery. The blood is cleansed as it slowly flows through the spleen. Microorganisms trapped by the spleen are destroyed by the leukocytes in the spleen. The cleansed blood leaves the spleen through the splenic vein.

Question 7

Blood enters the spleen through the splenic artery and exits through:&#10;A) the splenic vein.&#10;B) the splenic artery.&#10;C) splenic capillaries.&#10;D) leukocytes.

Accepted Answer

The cleansed blood leaves the spleen through the splenic vein.

Question 8

Cancer of the breast first metastasizes to the:&#10;A) adenoids.&#10;B) spleen.&#10;C) axillary lymph nodes.&#10;D) thymus gland.

Accepted Answer

Cancer of the breast commonly metastasizes to the axillary lymph node.

Question 9

These lymph nodes drain the head and neck area.&#10;A) palatine&#10;B) cervical&#10;C) axillary&#10;D) pharyngeal

Accepted Answer

Cervical lymph nodes drain and cleanse lymph coming from the head and neck areas.

Question 10

These lymph nodes drain from the lower extremities and the groin area.&#10;A) inguinal&#10;B) palatine&#10;C) axillary&#10;D) cervical

Accepted Answer

Inguinal lymph nodes are located in the groin region. These nodes drain and cleanse lymph from the lower extremities and external genitalia.

Deck 20: Lymphatic System