Examlex
On the giant planets, the atmospheric vortices that occur almost always lie between oppositely directed zonal winds.
Action Potential
Brief reversal of the charge difference across a neuron membrane.
Veins
Blood vessels that carry blood toward the heart, typically carrying deoxygenated blood from the tissues back to the heart except in the case of pulmonary veins.
Hemostasis
The physiological process by which bleeding ceases, involving blood vessel constriction and clot formation.
Thrombin
An enzyme in blood plasma that causes the clotting of blood by converting fibrinogen to fibrin.
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