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A thrombosis or thrombus is a blood clot. They can develop in any vein, but especially in the femoral veins of the thighs and in veins located in the calves. While many health issues can result in a clot developing, the most common reasons are a combination of these facts:
- inability or failure to move about frequently; inactivity, including jobs that require sitting for long hours
- inability or failure to stay adequately hydrated
- high cholesterol
- high blood pressure
- any circulatory condition in which the blood vessels become narrowed
A clot usually begins with RBCs becoming sticky, such as when the person is dehydrated. The sticky RBCs attach to a vein wall. As more blood swooshes by and past the sticky spot, more RBCs also begin to stick to that spot. A vein may have just a bump of sticky RBCs, or the clot can fill half or more of the vein lumen (the hollow part of the blood vessel).
IF the clot stays together, it can block off the flow of blood completely. The limb below the clot might get hot, red, painful, swollen--- or there may be no symptoms. If severe, the entire limb may swell. The clot may form a clothesline-like structure, filling a vein for many inches or even feet.
IF a portion of the clot breaks off, it becomes an embolus. It can then travel to the heart, lungs, or brain where it can cause considerable damage or even death.
Wiki User
∙ 6y ago
Wiki User
∙ 11y agoPressure from a mattress, slows the blood flow, veins vasodialate, more blood gets trapped in the vein, calcium sets off clotting
Wiki User
∙ 9y agoThrombosis is a condition where blood clots form in the veins. Thrombosis can happen for no reason or can occur due to inactivity.
Wiki User
∙ 15y agoSimply put, a thrombus is a blood clot.
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Is thrombi the plurual form of thrombus?
Yes, "thrombi" is the plural form of "thrombus."
What is more than one thrombus called?
More than one thrombus (or the plural form) is "thrombi".
Which arteries pass through the foramen magnum and then unite to form the basilar artery?
The vertebral arteries merge to form a basilar artery which form the posterior Circle of Willis. The middle cerebral arteries form the rest of the Circle of Willis.
What is an antithrombotic?
An antithrombotic is a drug which inhibits the formation of thrombi.
What large artery do these arteries branch form?
Yes, larger arteries branch off into smaller arteries known as arterioles.
What is iliac arteries?
Iliac artery calcification is when there are calcium deposits forming. They form inside the artery and sometimes cause blockages. These calcifications form deposits in arteries.
Which term indicates the presence of more than one thrombus?
thrombi
The descending aorta divides near the brim of the pelvis to form the right and left?
Femoral Arteries <---incorrect it forms the common iliac arteries.
What is an anticoagulant substance produced by basophils and tissue cells to prevent formation of thrombi and emboli?
heparin
What is the plural of thrombocyte?
The plural form of thrombus is thrombi.The plural is "thrombi" (from Latin), meaning blood clots within a blood vessel, or in the heart. If a blood clot reaches the lungs, it can cause pulmonary thrombosis.
What is the first vessels that branch off aorta?
The first vessels that branch off the aorta are called the coronary arteries. These arteries are so important for the heart muscle to work properly that they are the first off the aorta.These arteries give blood to the heart muscle itself. These arteries are also called coronary arteries because they form a crown around the top of the heart with the arteries forming an upside down crown.
What can massage do to someone with atherosclerosis and why is it contraindicated?
Atherosclerosis is associated with hardening of the arteries and plaque deposits. It can also involve blood clots, which are called thrombi. The danger lies in the possibility of dislodging a blood clot, which can be fatal. A gentle non-circulatory may be helpful to make them feel better, but it would be wise to get clearance from a doctor before proceeding.
