Which of the following is true of spatial summation?
A) Simultaneous stimulation of more than one postsynaptic neuron occurs.
B) Impulses are fired in a rapid succession by the same neuron.
C) Neurotransmitters released simultaneously from several presynaptic knobs converge on one postsynaptic neuron.
D) Speed of impulse transmission is increased when several neurotransmitters are released.

Question

Quizplus · Accepted Answer

Spatial summation involves the simultaneous release of neurotransmitters from multiple presynaptic neurons onto one postsynaptic neuron, leading to a stronger overall signal. This contrasts with temporal summation, which involves rapid successive signals from one neuron.

Which of the Following Is True of Spatial Summation