Spleen

Spleen

“How do macrophages remove old red blood cells? FAQ explained”

Histology of Spleen
Answer:

• The surface of spleen is covered by a layer of periosteum
• Capsule occurs below it
• It is made up of fibrous tissue with abundant elastic tissue
• Trabeculae extends from the capsule and divides the substance into smaller divisions forming a network

“Understanding the spleen through FAQs: Composition, functions, and uses explained”

• Spaces between the trabeculae contains a network of reticular fibres
• Cells present in reticulum are.
  • Fibroblasts
  • Macrophages
  • Lymphocytes
  • Blood vessels

“Importance of studying the spleen for medical students: Questions explained”

• Splenic artery enters the trabeculae and divides into arterioles
• Each arterioles is surrounded by lymphocytes
• This constitute white pulp of spleen
• Blood flows into the spaces lined by reticular cells due to the adherence of the dilated portion of vesszi called ampulla with reticular cells

“Common challenges in mastering spleen notes effectively: FAQs provided”

• The part of spleen which contains blood is called red pulp of spleen
• Blood from red pulp is collected by wide sinusoids to drain
• These sinusoids are lined by modified endothelium
• These endothelium cells are shaped like banana and known as stave cells
• These cells contains fibrils which help the cells to change their shape as per requirement
• Thus spleen consists of two parts
  • White pulp
  • Red pulp