A synapse includes

a a very narrow synaptic cleft

b. a presynaptic neuron with neurotransmitter receptor sites on its membrane

c a postsynaptic neuron that releases the neurotransmitter

d all of the above

Which biofeedback measurement is correct? ekg assesses electrical activity conducted by our muscles an emg is a test that assesses electrical activity conducted by the heart an eeg is a test that assesses electrical activity conducted by the adrenal glands a gsr is a test that assesses electrical activity conducted by the skin