Examlex
What term refers to the highest temperature-altitude zone, above 12,000 feet?
Histamine
A compound found in body cells that plays a major role in allergic reactions, acting as a neurotransmitter and involved in the regulation of stomach acid.
Allergic Responses
Immune system reactions to certain substances, called allergens, that are normally harmless to most people.
Injured Tissues
This term refers to tissues in the body that have been damaged due to trauma, disease, or other factors, affecting their normal function.
Vertebrate's Circulatory System
The closed circulatory system found in vertebrates, where the heart pumps blood through vessels to deliver nutrients and oxygen to cells.
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