Spleen Anatomy Overview

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Questions and Answers

Where is the spleen located in the body?

  • Above the left costal margin
  • Under the right costal margin
  • Above the right costal margin
  • Under the left costal margin (correct)

What gives rise to trabeculae and divides the parenchyma of the spleen into incomplete compartments?

  • Sinuses
  • Capsule (correct)
  • Arterioles
  • Central veins

How does blood enter the spleen?

  • Through the central veins
  • Through the sinuses
  • Through the trabecular arteries
  • Through the splenic artery (correct)

Where are follicles containing B-cells found in the spleen?

<p>Adjacent to the periarteriolar lymphatic sheath (PALS) (C)</p> Signup and view all the answers

What is the function of the red pulp in the spleen?

<p>Monitoring the integrity of red blood cells (A)</p> Signup and view all the answers

What is unique about the blood circulation system in the spleen?

<p>The majority of the arterioles end in cords without endothelial lining (D)</p> Signup and view all the answers

In splenomegaly, which type of blood circulation becomes increasingly important?

<p>Slow circulation (B)</p> Signup and view all the answers

What surrounds the central arterioles in the white pulp of the spleen?

<p>A core of lymphatic tissue known as white pulp (B)</p> Signup and view all the answers

What is the composition of the red pulp of the spleen?

<p>Splenic sinuses and splenic cords (B)</p> Signup and view all the answers

What is particularly numerous in the vicinity of the sinusoids in the red pulp?

<p>Macrophages (D)</p> Signup and view all the answers

Which component separates the white pulp from the red pulp of the spleen?

<p>Marginal zone (D)</p> Signup and view all the answers

What is one of the functions of the spleen related to phagocytosis?

<p>Removal of red cells containing excess DNA (D)</p> Signup and view all the answers

Where is the tropical splenomegaly syndrome (TSS) predominantly found?

<p>Malarious zones of the tropics (B)</p> Signup and view all the answers

Which age groups are considered high-risk for prophylactic oral penicillin?

<p>Less than 16 years and greater than 50 years (B)</p> Signup and view all the answers

What is the recommended prophylactic treatment for hyposplenic patients?

<p>Oral penicillin usually for life (D)</p> Signup and view all the answers

Which vaccinations are recommended for hyposplenic individuals to prevent infection?

<p>Pneumococcus, haemophilus, meningococcus, and influenza (A)</p> Signup and view all the answers

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