platelet

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platelet:

see blood clottingblood clotting,
process by which the blood coagulates to form solid masses, or clots. In minor injuries, small oval bodies called platelets, or thrombocytes, tend to collect and form plugs in blood vessel openings.
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Platelet

 

(also thrombocyte), a formed element found in the blood of vertebrate animals and man that plays an important role in blood coagulation. The platelets of vertebrate animals (except mammals) are small ovoid cells with a solid nucleus and weakly basophilic cytoplasm. In mammals, including man, platelets are anuclear bodies 2–5 µ in diameter. The platelets normally number about 250,000–350,000 per cubic mm of blood. They have granules containing serotonin and substances involved in blood coagulation, as well as mitochondria, microtubules, glycogen granules, and sometimes ribosomes. In mammals, platelets originate in the blood-forming organs when fragments of the cytoplasm of megakaryocytes separate from the megakaryocytes. The life-span of the platelets of mammals, including man, is about five to nine days.

REFERENCE

Markosian, A. A. Fiziologiia trombotsitov. Leningrad, 1970.

platelet

[′plāt·lət]
(histology)
(hydrology)
A small ice crystal which, when united with other such crystals, forms a layer of floating ice, especially sea ice, and serves as seed crystals for further thickening of the ice cover.

platelet

a minute cell occurring in the blood of vertebrates and involved in clotting of the blood
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Platelet-rich plasma to treat ankle cartilage pathology - from translational potential to clinical evidence: a systematic review.
After topical anesthesia was applied to the ear, the platelet-rich plasma was prepared as described by El-Anwar et al (12) with 5 ml of peripheral venous blood drawn from each patient with a 16- or 18-gauge butterfly needle to avoid irritation and damage to the platelets.
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Injection of platelet-rich plasma in patients with primary and secondary knee osteoarthritis: a pilot study.
A systematic review of four injections therapies for lateral epicondylosis: prolotherapy, polidocanol, whole blood, and platelet-rich plasma.
Normal platelet-rich plasma (NPRP) was prepared by centrifuging at 170g for 10 minutes at 20[degrees]C and rested for 30 minutes at room temperature prior to testing.
Using a syringe and guided by an ultra sound machine, we then inject 4-5ml of the platelet-rich plasma directly into the injured area.
The effect of platelet-rich plasma on the neovascularization of surgically created equine superficial digital flexor tendon lesions.
One method of controlling bleeding without suspending the anticoagulant is the use of platelet-rich plasma gel placed in post-extraction tooth sockets.

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