Lymph node histology

The video tutorial explores the lymphatic system, focusing on lymph nodes. It covers their structure, function, and histology, explaining how lymph nodes act as meeting points for immune cells. The tutorial also discusses conditions like follicular hyperplasia, providing insights into lymph node pathology. The session concludes with a summary of key points.

What is one of the primary functions of lymph nodes in the lymphatic system?

• To produce red blood cells

• To store fat

• To monitor and destroy pathogens

• To regulate body temperature

Which layer of the lymph node contains the subcapsular sinus?

• Deep cortex

• Medulla

• Superficial cortex

• Capsule

What are the main types of cells found in the superficial cortex of a lymph node?

• T lymphocytes

• B lymphocytes

• Neutrophils

• Macrophages

What is the primary role of follicular dendritic cells in the lymph node?

• To destroy pathogens

• To transport lymph

• To present antigens to B lymphocytes

• To produce antibodies

Which cells are responsible for cleaning up apoptotic cells in the germinal center?

• Macrophages

• Dendritic cells

• B lymphocytes

• T lymphocytes

What is the role of the germinal center in the lymph node?

• To store lymph

• To produce red blood cells

• To filter blood

• To facilitate B cell proliferation and differentiation

Which structure in the lymph node allows lymphocytes to enter from the bloodstream?

• Medullary cords

• Subcapsular sinus

• Afferent lymphatic vessels

• High endothelial venules

What is the main characteristic of the medulla in a lymph node?

• High endothelial venules

• Diffuse arrangement of lymphocytes

• Presence of lymphoid nodules

• Densely packed lymphocytes

What is the function of the medullary sinuses in the lymph node?

• To filter lymph

• To store antibodies

• To transport blood

• To produce lymphocytes

What condition is characterized by an increased number of secondary nodules in the lymph node?

• Follicular hyperplasia

• Lymphoma

• Leukemia

• Anemia