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LAB Lymphoid organ and human WBCs

Total questions: 10

Worksheet time: 8mins

Name
Class
Date
1.

Primary lymphoid organs are responsible for ?

a)

Filtering blood

b)

Filtering lymph

c)

Storing lymphocytes

d)

Producing and maturing lymphocytes

2.

Which of the following is NOT a secondary lymphoid organ?

a)

Spleen

b)

Tonsils

c)

Bone marrow

d)

Lymph nodes

3.

Which lymphoid organ serves as a reservoir for blood and is involved in filtering blood and removing old or damaged blood cells?

a)

Thymus

b)

Lymph nodes

c)

Spleen

d)

Bone marrow

4.

Which region of the thymus contains immature T cells undergoing maturation processes?

a)

Cortex

b)

Medulla

c)

Capsule

d)

Hilum

5.

What is the function of M cells in Peyer's patches, and where can we find them on virtual slides?

a)

Produce antibodies/ jejunum of Human sec.

b)

Transport antigens from the gut lumen to underlying immune cells/Palatine tonsil of Human sec.

c)

Release cytokines/ Duodenum of Human sec.

d)

Phagocytose pathogens/Ileum of Human sec.

6.

Which type of lymphoid organ is crucial for distinguishing between self and non-self antigens?

a)

Bone marrow

b)

Thymus

c)

Spleen

d)

Lymph nodes

7.

What specific type of hematopoietic stem cells found in the bone marrow give rise to B cells?

a)

Lymphoid progenitor cells

b)

Myeloid progenitor cells

c)

Hemocytoblasts

d)

Colony-forming units

8.

In the spleen, which region contains the marginal zone, where interactions between blood-borne antigens and immune cells primarily occur?

a)

Red pulp

b)

White pulp

c)

Capsule

d)

Capsule

9.

Which specialized cells within the lymph nodes present antigens to T cells, initiating an adaptive immune response, and where can we find them on virtual slides?

a)

Macrophages, Blood of human smear

b)

Dendritic cells, Skin of Human

c)

Neutrophil, Colon of Human sec.

d)

Mast cells, Lymphoid node of Human sec.

10.

Which of the following is NOT a function of lymphoid organs?

a)

Antigen presentation

b)

Hematopoiesis

c)

Phagocytosis

d)

Immune cell activation