There are many vasodilators. These include histamines, nitric oxide, CO2, H+, K+, adenosine and epinephrine.
Dilated capillaries are also known as broken blood vessels. When several capillaries come together they appear red or similar to a bruise. They are common on the legs.
Nipple stimulation also stimulates the production of oxytocin, which can lead to dilation.
The widening of capillaries is known as "capillary dilation" or "capillary vasodilation." This process occurs when the smooth muscles in the walls of the capillaries relax, allowing for increased blood flow to a specific area, often in response to various physiological signals such as heat or inflammation. Capillary dilation plays a crucial role in thermoregulation and the delivery of nutrients to tissues.
Nicotien or anything chemical which stimulates the Nicotinic receptors.
Vasodilation is a mechanism for thermoregulation . It is used for cooling down body temperature . Increased body temperature stimulates vasodilation .It results in increased blood flow to skin to aid heat dissipation .
Is it true that intestinal villi contains capillaries and lacteals important for chemical digestion?
acetylcholine (ACh)
Substances like nitric oxide (NO), prostacyclin (PGI2), and adenosine can cause extreme dilation of arterioles and capillaries by promoting relaxation of smooth muscle cells in the blood vessel walls. This dilation increases blood flow to tissues and helps regulate blood pressure and tissue perfusion.
An antigen is a foreign chemical that stimulates the production of antibodies by the immune system. Antigens can be bacteria, viruses, toxins, or other substances that are recognized as foreign by the body.
Almost all the veins and arteries constrict and dilate during heavy exercise. Even capillaries bring a flush to the face and skin by dilation.
A. paracrineB. neurotransmitterC. autocrineD. endocrine
Platelet-derived growth factor (PDGF) is a chemical that stimulates mitosis in healing wounds. It is released by blood platelets and other cells at the wound site to promote cell division, proliferation, and tissue repair.