NEET PG DENTAL EXAM

Detailed explanation-1: -Platelets, or thrombocytes, are small, colorless cell fragments in our blood that form clots and stop or prevent bleeding. Platelets are made in our bone marrow, the sponge-like tissue inside our bones. Bone marrow contains stem cells that develop into red blood cells, white blood cells, and platelets.

Detailed explanation-2: -Platelets are thought to contain three types of granules. The first type is known as the dense granule. There are thought to be approximately 4–6 dense granules packed into each platelet. The dense granule contains more than 200 small molecules including calcium, ATP, ADP, 5-HT, and epinephrine.

Detailed explanation-3: -A normal platelet count in adults ranges from 150, 000 to 450, 000 platelets per microliter of blood. A platelet count of less than 150, 000 platelets per microliter is lower than normal. When you have a low platelet count, you may have trouble stopping bleeding.

Detailed explanation-4: -Platelets help blood to clot Platelets are irregularly shaped fragments of cells that circulate in the blood until they are either activated to form a blood clot or are removed by the spleen. Thrombocytopenia is a condition of low levels of platelets and carries an increased risk of bleeding.