Doctor insights on:
How Does The Acetylcholine Affect The Blood Vessels
ACH effect on BV: M3 muscarinic ach receptors are located in smooth muscles of blood vessels. Because they're gq-coupled & mediate increase in intracellular calcium, they typically cause contraction of smooth muscle (as in bronchi). But activation of m3 on vascular endothelial cells causes increased synthesis of nitric oxide, which diffuses to adjacent vascular smooth muscle cells and causes their relaxation. ...Read more
I feel like everyone's reading my mind. I don't like being around others, it feels really awkward. I think I have lost blood vessels inside my head.
See a Counselor: See a counselor to be evaluated and be taught coping strategies before it becomes a permanent condition. ...Read more
Contacts: Dilated vessels in the eyes can occur from any reason that causes eye irritation (such as contacts, dry eye, blepharitis, etc). ...Read more
Yes and no.: If your blood vessels are constricted you may feel cold. There are no diseases of the blood vessels not dilating properly. Blood vessels dilate or contract in response to chemicals in the blood stream, systemic conditions and local environmental factors. ...Read more
Blood, A fluid tissue: Blood has the cellular elements and plasma. The cells are 3 types called red blood cells, white blood cells and platelets. The liquid portion in which these cellular elements are suspended is called plasma which is rich in proteins called plasma proteins - including albumin, globulins, and in additon have the special clotting related proteins -clotting factors I to xiii. ...Read more
Big topic: Many types of inflamed blood vessels: thrombophlebitis is is usually hard, inflamed superficial blood vessels in the leg veins. Usually patients have underlying medical condition of their veins called venous insufficiency or reflux. Need to see phlebology dr. Www. Phlebology. Org do ultrasound scan now. This can lead to deep vein clot which is dangerous. Use ice, ibuprofen, compression, walking. ...Read more
Unlikely: Tuberculosis results from mycobacterium tuberculosis, a bacterium. It enters and travels through blood vessels but it does not widen blood vessels. Its destination and residence is in organs, such as the lungs, lymph nodes, bones and joints, skin, intestines, genital organs, kidneys, and bladder. ...Read more
Possibly: If the running is very traumatic say through obstacles courses or your are pounding pavement in poorly cushioned shoes, ie military recruits running on hard pavement in boots, then they it can cause broken blood vessels. If you are in well cushioned shoes on reasonable terrain you should have anything to worry about. ...Read more
See below: Anabolic steroid used in excess can cause hardening of the arteries and lead to big problems later with circulation and potential clogging in the coronary arteries leading to heart attacks. As for regular, non-anabolic steroids like that used to reduce inflammation, these have a lot of long term affects if used for prolonged periods but hardening of the arteries I do not believe is involved. ...Read more
See a pediatrician: The most common reason is trauma but it if there no obvious explanation such as a fall etc consult a pediatrician. ...Read more
Endothelium: Blood vessels are lined by endothelial cells. These are thin flattened large cells that are metabolically active. The electrical charge on the endothelial cells and blood cells keeps them apart. ...Read more
There are some called ectatic and not to extent of aneurysm.
They are bigger than many but do not enlarge over time.
Aneurysm is 2-2. 5 times normal in general.
Abdominal normal 1.5 - 2 cm.
Aneurysm > 3
intervention at about 5 cm
some variation and clinical judgement required. ...Read more
Few things: Could be just a normal variant or from high blood pressure (most likely especially if its in both eyes). Alternatively, if there is an abnormal connection between the arteries and veins or an impending blockage of a vein, that can also cause it. These are unlikely causes though. ...Read moreSee 1 more doctor answer
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