"Vasopressor" Natural Recordings by Native Speakers
A medicament that increases systemic vascular resistance and reduces peripheral vascular capacitance to elevate blood pressure in the event of shock caused by hemorrhage, trauma, cardiopulmonary bypass, or septic shock, or acutely to mimic some effects of sympathetic nervous activation ( Fight or flight mode).
The term "vasomotor" refers to the nerves that control the contraction and dilation of blood vessels, which are also known as vasomotor nerves. These nerves, which are part of the autonomic nervous system, play a crucial role in regulating blood pressure and flow by altering the diameter of blood vessels.<br><br>In the context of physiology, vasomotor function involves the interaction between the vasomotor centers in the brain and the smooth muscle in blood vessels. The vasomotor system can be divided into two main branches:<br><br>1. Sympathetic vasomotor: This branch is responsible for dilating blood vessels, releasing epinephrine and norepinephrine, which increases blood pressure and accelerates heart rate.<br><br>2. Parasympathetic vasomotor: This branch is responsible for constricting blood vessels, releasing acetylcholine and xanthine, which decreases blood pressure and slows heart rate.<br><br>Therefore, vasomotor activity helps regulate the flow of blood to various parts of the body, maintaining homeostasis by adjusting blood pressure to meet the needs of tissues.
Vasopermeability refers to the selective permeability of blood vessels (arterioles and capillaries), which allows certain substances to pass through while preventing others from doing so.
Vasoplasty refers to a surgical procedure that aims to remove scar tissue that has formed within blood vessels, such as those found in the eyes or the urethra. This is done to improve blood flow and potentially restore function to the affected area.