Place the events in the transmission of an action potential in the correct order: 1) an action potential begins in the receiving neuron. 2) neurotransmitters are released into the synaptic cleft. 3) an action potential arrives at an axon terminal. 4) calcium ions enter the axon terminal. 5) sodium ions diffuse into the receiving neuron. 6) synaptic vesicles fuse with the plasma membrane. 7) neurotransmitter molecules bind to the membrane of the receiving neuron.

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.