TOB Module Practical Session 5: Lymphoid System

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What is the main function of a lymph node?

To aid in digestion

To regulate body temperature

To produce red blood cells

To filter the lymph (correct)

Where are the secondary follicles/nodules with germinal centers located within the lymph node?

In the cortex directly under the capsule (correct)

In the hilum of the lymph node

In the subcapsular sinus

In the outer cortex composed of T-lymphocytes

Which of the following is NOT considered a lymphoid organ?

Peyer's patches

Tonsils

Liver (correct)

Thymus

What is the main function of the mucosa associated lymphoid tissue (MALT)?

Participating in immune response Signup and view all the answers

What is the role of the trabecular sinuses in a lymph node?

To contain lymph, macrophages, and reticular cells Signup and view all the answers

Where do the blood vessels enter and efferent lymphatic vessels leave the lymph node?

Hilum Signup and view all the answers

Where do germinal centers develop in response to immune challenge?

Cortex Signup and view all the answers

Which region of the lymph node contains mainly T-lymphocytes in a diffuse manner?

Paracortex Signup and view all the answers

Which part of the thymus is responsible for the maturation of T-cells?

Cortex Signup and view all the answers

What does the medulla of the thymus contain?

Large number of ERC with less lymphocytes and Hassall’s corpuscles Signup and view all the answers

What is the main composition of the white pulp in the spleen?

B-lymphocytes Signup and view all the answers

Which part of the lymph node contains lymphoid nodules with germinal centers?

Cortex Signup and view all the answers

Which region of the lymph node lies between the outer cortex and medulla?

Paracortex Signup and view all the answers

What does the red pulp in the spleen contain?

Elongated structures known as splenic cords Signup and view all the answers

What do primary nodules develop in response to immune challenge?

Develop into secondary nodules Signup and view all the answers

Which part of the thymus has a peripheral dark zone and a central light zone?

Cortex Signup and view all the answers

TOB Module Practical Session 5: Lymphoid System

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Questions and Answers

What is the main function of a lymph node?

Where are the secondary follicles/nodules with germinal centers located within the lymph node?

Which of the following is NOT considered a lymphoid organ?

What is the main function of the mucosa associated lymphoid tissue (MALT)?

What is the role of the trabecular sinuses in a lymph node?

Where do the blood vessels enter and efferent lymphatic vessels leave the lymph node?

Where do germinal centers develop in response to immune challenge?

Which region of the lymph node contains mainly T-lymphocytes in a diffuse manner?

Which part of the thymus is responsible for the maturation of T-cells?

What does the medulla of the thymus contain?

What is the main composition of the white pulp in the spleen?

Which part of the lymph node contains lymphoid nodules with germinal centers?

Which region of the lymph node lies between the outer cortex and medulla?

What does the red pulp in the spleen contain?

What do primary nodules develop in response to immune challenge?

Which part of the thymus has a peripheral dark zone and a central light zone?

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