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Veins
Veins are thin blood vessels that carry blood from various body parts to the heart. These have valves in them to prevent back flow of blood.
2,123 Questions
What is the purpose of the portal vein?
In males it is the earlobe if im not mistaken but in females i think it is the clitoris.
When muscles contract blood is forced through what?
Blood moves from the capillaries and into the veins.
What is smooth muscle and valves?
Smooth muscles are involuntary muscles, muscles that you can not control, and are located in your organs like your stomach and intestines.
Valves are located in your heart and they are like little doors that allow the blood to flow into the chambers when open and stop the flow when closed.
What percent of blood volume loss is necessary for significant vital sign change?
Losing around 20% of your blood volume will put you into shock.
NB: When your blood pressure falls, your body is unable to compensate through the normal mechanisms of control (such as the renin-angiotensin system in the kidneys, or constricting blood vessels) for the the loss of blood and the patient is in serious shock. If the blood loss is acute, the BP may rise initially due to the constriction of blood vessels etc.
I suppose technically your estate "owns" your body to the extent that anyone does. There are laws regarding the disposal of human remains (they're basically health codes), but none of them specify that you have to give "a bunch of money" to anyone in particular. For example, cremation may be a cheaper alternative to interment, and no law anywhere that I'm aware of says you have to be embalmed or have a fancy casket (in fact, whether you need a casket at all depends on the rules of the particular cemetary you're being buried in, and federal law explicitly states that funeral homes not allowed to require that people purchase a casket from them or any other specific source).
You generally can't just have your friend Joe dig a hole in your back yard and dump you in it, though; laws specifying that human remains may only be interred in "established cemetaries" are fairly common.
If you're really going for cheap disposal, you could consider donating your remains to a nearby medical school. Most schools will cover the cost of cremation once they're "done" with the remains in exchange for you letting the school "borrow" them.
By law, who "decides" what happens to your body after you're dead is something like:
State and local government are allowed to make restrictions consistent with public health and safety concerns (for example, to say that your family can't just wrap you in a flag and dump you in the river, or grind you up and turn you into sausages).
After that, it would normally follow a "next-of-kin" order of precedence: your spouse, your adult children, your surviving parent(s), your siblings, and so on (the exact order may vary, but the spouse if you have one is almost always first).
If you've made specific provisions in your will, they may (or may not) supercede the wishes of family members. An estate planner will be better able to advise you on what the law is in your area and what's likely to be challenged (or not).
Bright red blood that spurts out comes from severed vein or severed artery?
It comes from an artery. Arteries carry OXYGENATED blood away from heart. This oxygenated blood is bright red. The Arterial system is on the high pressure side of the heart. The pressure changes as the heart contracts and then expands and refills (a heartbeat). When an artery is punctured the blood will spurt with every heartbeat.
Do you start CPR if the jugular vein is cut?
No. Stop the bleeding first, although death is almost certain and very quick if the jugular vein is severed.
What is the basic difference between arteries and veins?
Arteries carry oxygenated blood from the heart and veins carry de-oxygenated blood back to the heart.
What is the direction of blood flow in veins?
Blood vessels contract slightly to help the flow of blood
As the heart beats, it pumps blood through a system of blood vessels, called the circulatory system. The vessels are elastic tubes that carry blood to every part of the body.
Why all singers have jugular vein when singing?
When singers sing, especially loud songs their jugular veins bulge out due to strain. It is not a health concern
What to do for a Thrombosed penile vein?
Avoid sexual activity and masturbation and the clot will usually disappear in a few weeks
Why do i have a sharp pain on pubic bone when trying to cross legs at 38 weeks pregnant?
Because the ligaments in your pelvis would much rather you didn't! Crossing your legs (and adopting various other positions) will put stress on your pelvic girdle, especially your symphysis pubis at the front. Try keeping your pelvis symmetrical - when standing, keep hips level; when lying, try being on your side with a pillow between your knees; when sitting, stay upright with both feet on the floor. You may have a mild case of SPD but it's probably just typical pregnancy discomfort so late in your pregnancy. Good luck, not long to go now...
How would severe bleeding from a major veins affect heart rate and heart output?
Your cardiac output is equal to your stroke volume (amount of blood being pushed out every time your heart beats) multiplied by your heart rate. Your cardiac output equals the amount of circulating blood needed to function at a given time.
Your body will try to compensate for any changes in the amount of blood in your system, therefore your body will always try to maintian cardiac output. With any type of major bleeding, your stroke volume will decrease. In order to maintain your cardiac output, your heart rate will increase. For example:
(Stroke Volume of 50mL) x (Heart Rate of 60) = Cardiac Output of 300
With major bleeding, the decrease in stroke volume will require an increase in heart rate:
(Stroke Volume of 25mL) x (Heart Rate of 120) = Cardiac Output of 300
You can see that the amount of blood decreased in half for every heart beat (50mL to 25mL), so the heart has to beat twice as fast (60 beats per minute to 120 beats per minute) to make up for the blood loss.
A Venn, not vein, diagram is a graphic respresentation of overlapping sets--e.g., 1) People over 20; people under 30, and men of any age, which overlap singly as a) men over 20, b) men under 30, and c) people between 20 and 30 and overlap doubly as men between 20 and 30.
Veins have no reproductive organs, so no they cannot reproduce per se.
What system do the veins and arteries belong to?
Arteries and veins belong to the cardiovascular system.
Are busted blood vein on top of hand dangerous?
maybe, because it could cause internal bleeding, so you better consult your local doctor.
What prevents the blood in your veins from draining to your feet between heartbeats?
One way valves prevent backwash between heartbeats.
Are there any websites that can help me find varicose veins?
http://www.varicoseveincures.com/ This website contains information to cure spider veins (varicose veins). It also includes cures and treatments. I hope this helps
What is the phobia of fear of veins?
VENEPHOBIA. One with venephobia usually can't stand looking at their own wrists, hands, or neck, fearing of seeing their own veins and arteries.
