Question

fill in the blanks with the terms provided. not all terms will be used. 1. local blood flow is also regulated when vasoactive chemicals are released from damaged tissue, platelets in response to tissue damage or as part of the body’s defense. this process is referred to as. for example, histamine and bradykinin are released in response to a trauma, allergic reaction, infection, or even exercise. these chemicals may cause by directly stimulating or indirectly by stimulating endothelial cells of the vessel to release. this is a very powerful, but short - lived, vasodilator. other vasoactive substances, such as prostaglandins and thromboxanes, can cause (click to select) to help prevent blood loss through the damaged vessel. (click to select) arterioles endothelin erythrocytes inflammation leukocytes nitric oxide vasoconstriction vasodilation

Explanation:

When tissue is damaged, inflammation occurs and vasoactive chemicals are released. Vasodilation is the widening of blood - vessels. Histamine and bradykinin can act on arterioles. Nitric oxide is a vasodilator. Vasoconstriction helps prevent blood loss. Endothelin is a vasoconstrictor, while erythrocytes and leukocytes are blood cells not directly related to this immediate vaso - regulation in the context of the blanks. So the last blank should be filled with endothelin as it is a vasoactive substance that can cause vasoconstriction.

Answer:

endothelin