Semilunar Valves
The semilunar valves are essential structures of the human heart that play a critical role in maintaining the unidirectional flow of blood from the ventricles into the major arteries. These…
Monoamines
Monoamines are a vital group of chemical messengers in the human body that play a central role in regulating a wide range of physiological and psychological processes. They are a…
Limbic System
The limbic system is a vital network of structures in the brain that plays a central role in regulating emotions, memory, motivation, and certain behaviors essential for survival. Often referred…
Blood Pressure
Blood pressure is a vital physiological parameter that reflects the force exerted by circulating blood on the walls of the arteries. It plays a crucial role in ensuring that oxygen,…
Acetylcholine
Acetylcholine is one of the most important chemical messengers in the human body, belonging to the group of substances known as neurotransmitters. A neurotransmitter is a chemical that transmits signals…
Heart Rate
Heart rate refers to the number of times the heart contracts, or beats, in one minute. It is one of the most basic and vital signs used to evaluate the…
Amygdala
The amygdala is a small, almond-shaped structure located deep within the medial part of the temporal lobe of the brain. It is one of the most significant components of the…
Brainstem
The brainstem is one of the most essential parts of the human nervous system, serving as the connection between the brain and the spinal cord. It lies at the base…