Type I hypersensitivity reactions are mediated by IgE antibodies and are associated with allergic responses.

Smooth muscle is involuntary and is found in the walls of hollow organs such as the intestines and blood vessels.

Coagulative necrosis is the type of necrosis commonly seen in myocardial infarction due to ischemia.

Dense regular connective tissue is characterized by tightly packed collagen fibers, providing strength and resistance to tensile forces, making it ideal for tendons.

Pili are the primary virulence factor that allows Neisseria gonorrhoeae to adhere to epithelial cells in the urogenital tract.

Rhinovirus is the most common cause of the common cold, responsible for a significant number of upper respiratory infections.