Question

Rrect answer

1. Serves as platelet repellent; coats healthy endothelium
2. Occurs only on APCs and only displays foreign antigens. TH cells respond to this.
3. Occur on nucleated cells and activate Tc cells.
4.
Group of plasma proteins that circulate in an inactive state and serve as a mechanism for enhancing
phagocytosis, cytolysis, and inflammation.
5. The only Tlymphocytes that can directly attack and kill other cells_
6.
The thoracic duct empties into the
7.
Stem cell from which all formed elements arise_
8. The organ in the body that regulates erythrocyte production_
9. Erythrocytes are derived from the
1O. Lymphatic organs that serve as the initial site of cell production and maturation,
the following:
lineage of differentiated stem cells.

Answer 1

Helper T Lymphocytes, also known as TH cells, are an important part of the immune system. They recognize specific antigens on APCs and activate other immune cells to fight off infections.

The subject of this question is Helper T Lymphocytes in the field of Biology. Helper T Lymphocytes, also known as TH cells, play an important role in the immune response by identifying potential pathogens and activating other cells of the immune system.
They recognize specific antigens displayed on Antigen-Presenting Cells (APCs) and trigger immune responses to fight off infections.