Lymphatic System

Question 1

Fibrous framework made up of reticular tissue.

Answer 1

Stroma

Question 2

Cellular component of lymphatic tissue, composed of a collection of cells, mainly lymphocytes, occupying the meshes of reticular tissue.

Answer 2

parenchyma

Question 3

Parenchymal components include some or all of the following:

Answer 3

Lymphocytes, Monocytes, Histiocytes, Plasma cells, and Lymph or blood sinusoids.

Question 4

The outer zone of lymphatic nodules are called:

Answer 4

cortex

Question 5

The central region of a lymphatic nodule appears light and is called the:

Answer 5

Germinal Center

Question 6

Aggregates of lymph nodules are called:

Answer 6

Peyer’s patches

Question 7

How many of each tonsil type do we have?

Answer 7

2 Palatine, 1 lingual, 1 pharyngeal

Question 8

The mucous membrane of tonsils dips into the lymphatic tissue to form tubular invaginations called:

Answer 8

tonsillar crypts

Question 9

The palatine and lingual tonsils have what type of surface epithelium?

Answer 9

Stratifies squamous non-keratinized

Question 10

The pharyngeal tonsil has what type of surface epithelium?

Answer 10

Pseudostratified columnar ciliated with goblet cells

Question 11

Where is the thymus located?

Answer 11

In the superior and extends into the anterior mediastinum.

Question 12

How many lobes does the thymus contain?

Answer 12

2

Question 13

The cytoreticulum of the thymus is made of branching cells attached together by their processes and are called:

Answer 13

epithelial reticular cells

Question 14

Epithelial reticular cells secrete _____ which is important in ______.

Answer 14

Thymosin, the development of immunologically competent lymphocytes.

Question 15

Rounded lamellated acidophilic bodies characteristic to the medulla of the thymus and is made up of_____

Answer 15

Hassall’s Corpuscles, degenerating epithelial reticular cells

Question 16

What is the largest lymphatic organ in the body?

Answer 16

Spleen

Question 17

What fluid circulates in this tissue?

Answer 17

Blood

Question 18

White pulp of the spleen is made up of _____ and show a characteristic ____ at one side of each nodule.

Answer 18

nodules, central arteriole

Question 19

The red pulp of the spleen is made up of ____ and contain a great number of blood cells especially ____.

Answer 19

irregular branching cords, Red Blood Cells

Question 20

Blood sinuses with gaps between its lining cells:

Answer 20

Splenic sinuses

Question 21

The splenic artery enters the hilum and branches into:

Answer 21

trabecular arteries

Question 22

Trabecular arteries exit the trabeculae and enter splenic nodules as:

Answer 22

central arterioles

Question 23

Central arterioles branch within the nodules as straight vessels called:

Answer 23

penicilli

Question 24

Splenic sinuses receive blood from penicilli and are drained by:

Answer 24

pulp venules

Question 25

Pulp venules drain into:

Answer 25

trabecular veins

Question 26

Trabecular veins drain into branches of the ____ that exits the splene through the hilum.

Answer 26

splenic vein

Question 27

The spleen functions as a:

Answer 27

Reservoir of blood cells.