Both electrical and chemical synapses trigger passage of ions across the post-synaptic membrane. (i) Which one of thesesynapses also allows passage of molecules other than ions across the post-synaptic membrane? (ii) What purpose does anelectrical synapse serve?A. Electrical synapse; (ii) dissociate neuronal firing among a group of neuronsB. Chemical synapse, (ii) to synthesize IP3C. (i) Chemical synapse, (ii) slow neurotransmissionD. Chemical synapse, (ii) silence neuronal firingO E. (i) Electrical synapse, (ii) fast neurotransmission for synchronized firing

Answered: Both electrical and chemical synapses…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Question

Both electrical and chemical synapses trigger passage of ions across the post-synaptic membrane. (i) Which one of these
synapses also allows passage of molecules other than ions across the post-synaptic membrane? (ii) What purpose does an
electrical synapse serve?
A. Electrical synapse; (ii) dissociate neuronal firing among a group of neurons
B. Chemical synapse, (ii) to synthesize IP3
C. (i) Chemical synapse, (ii) slow neurotransmission
D. Chemical synapse, (ii) silence neuronal firing
O E. (i) Electrical synapse, (ii) fast neurotransmission for synchronized firing

Expert Solution

Step 1

Chemical synapses are connections between two neurons or between a neuron and a non-neuronal cell. At a chemical synapse, one neuron releases neurotransmitter molecules into a small space that is adjacent to another neuron.

In electrical synapses, there is a direct physical connection between the presynaptic neuron and the postsynaptic neuron. This connection forms a channel called a gap junction, which allows current—ions—to flow directly from one cell into another. Electrical synapses transmit signals more rapidly than chemical synapses do