Chapter 8 Spleen

Question 1

What projects from the splenic capsule and divides the spleen into several compartments

Answer 1

Trabeculae

Question 2

What anatomy is located on the anterior border of the spleen

Answer 2

Stomach

Question 3

In the spleen, what structure is made up of lymph tissues arranged around the splenic arteriole

Answer 3

White pulp

Question 4

What is the spleen’s function in the embryological stage of development

Answer 4

Hematopoiesis

Question 5

What is the principle site of filtration within the spleen

Answer 5

Red pulp

Question 6

What splenic function removes iron and other substances from erythrocytes

Answer 6

Pitting

Question 7

Which position is best for scanning the normal adult spleen

Answer 7

Right lateral decubitus

Question 8

Which ligament attaches the spleen to the greater curvature of the stomach

Answer 8

Gastrosplenic

Question 9

What term describes the echogenicity of the normal splenic parenchyma when compared to the liver

Answer 9

Isoechoic

Question 10

When is the spleen considered to be enlarged

Answer 10

The length exceeds 13 cm

Question 11

What is ruled out when the sonographer demonstrates the spleen

Answer 11

Asplenia

Question 12

What is the normal sonographic appearance of splenic parenchyma

Answer 12

Homogenous

Question 13

Leukopenia may result from what condition

Answer 13

Anaphylactic shock

Question 14

On a longitudinal section, where is the extension of the superior splenic component located compared to the inferior componenet

Answer 14

Medial

Question 15

What may be demonstrated in the spleen, liver, kidneys, and adrenal glands in patients with extrapulmonary pneumocystis carinii secondary to AIDS

Answer 15

Calcifications

Question 16

What process contributes to an acquired aplasia and hypoplasia

Answer 16

Repeated infarction

Question 17

Red blood cell; contains hemoglobin

Answer 17

Erythrocyte

Question 18

Process of red blood cell production

Answer 18

Erythropoiesis

Question 19

Lab value of the percentage of blood volume made up of red blood cells

Answer 19

Hematocrit

Question 20

Tissue death caused by an interruption of the blood suply

Answer 20

Infarct

Question 21

White blood cell; protects and fights against infection in the body

Answer 21

Leukocytosis

Question 22

Decreased white blood cell count, possibly the result of viral infection or leukemia

Answer 22

Leukopenia

Question 23

Process used by the red pulp to destroy old red blood cells

Answer 23

Phagocytosis

Question 24

The splenic artery branches off which artery to supply blood to the spleen

Answer 24

Celiac axis

Question 25

A wandering spleen is at an increased risk of acquiring which of the following conditions

Answer 25

Torsion and infarction

Question 26

Leukocytosis is the typical response to which of the following coniditions

Answer 26

Bacterial infection

Question 27

What is leukopenia

Answer 27

Frequently a side effect of chemotherapy

Question 28

What is the most common sonographically visualized abnormality of the spleen

Answer 28

Splenomegaly

Question 29

What is the most common cause of splenomegaly

Answer 29

Portal hypertension

Question 30

Splenic calcifications usually result from which disease

Answer 30

Angiosarcomas

Question 31

What may cause a small shrunken spleen

Answer 31

Portal hypertension