Question

The process of blood clot formation within the circulatory system is
A. Thrombosis
B. Thrombocytes
C. Thrombin
D. Thrombocytopenia

Answer 1

Hint: Blood clotting is a process in which the blood transforms into a gel-like substance and prevents bleeding. This results in homeostasis and further repairment of the tissues. Platelets and fibrin play an important role in blood clotting.

Complete answer: Thrombosis is caused by blood clots forming in deep veins and mostly it occurs in the legs. Blood clots can form when due to certain conditions where bleeding doesn't stop or the blood doesn't circulate properly in the whole body. For example, it can happen to anyone who lacks physical movement after an accident, injury, or surgery. Blood clots are dangerous because they can break apart, travel throughout the body, and cause blockages in the heart, brain, or lungs (leading to heart attack, stroke, or pulmonary embolism, respectively). The two main symptoms that indicate thrombosis are pain and swelling. The pain in the affected area (usually the leg) begins like a cramp and can intensify if left unattended. Swelling occurs in the vicinity of the blood clot. There are cases where no symptoms are visible. The most serious symptoms may result from the formation of a pulmonary embolism where arteries in the lungs get blocked by a blood clot. This can include difficulty in breathing, chest pain which can gradually intensify or get worse when breathing in, dizziness, lightheadedness, increased heart rate, and coughing up blood.
Hence, the correct answer is Option A.

Note: Deep vein thrombosis and pulmonary embolism are two forms of VTE. Deep vein thrombosis is when a blood clot occurs deep inside the vein. It usually occurs in the lower leg or thigh. A pulmonary embolism occurs when a clot breaks loose and travels through the bloodstream to the other parts of the body, mostly the lungs.