Which of these causes the release of neurotransmitter molecules? which of these causes the release of neurotransmitter molecules? the receipt of a signal from the postsynaptic neuron the opening of voltage-regulated calcium channels and the diffusion of calcium ions out of the neuron an action potential reaching the end of the cell body an action potential reaching the end of the axon an action potential reaching the end of the dendrite?

c is the answer : )               your welcome

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.