Asked by Tyrique Spells on Apr 29, 2024
Verified
Arrange the events of synaptic transmission in correct sequence.
(1) Na+ diffuses into the cell and cause a local potential
(2) Neurotransmitter binds with receptor on postsynaptic cell
(3) Neurotransmitter diffuses across the synaptic cleft
(4) Membrane permeability to Na+ on postsynaptic cell increases
(5) Action potential causes release of neurotransmitter
A) 5, 2, 3, 4, 1
B) 5, 2, 3, 1, 4
C) 5, 3, 4, 1, 2
D) 5, 4, 3, 2, 1
E) 5, 3, 2, 4, 1
Synaptic Transmission
The process by which neurotransmitters are released by one neuron and bind to receptors on another neuron, facilitating communication between neurons.
Neurotransmitter
Chemical substances that transmit signals across a synapse from one neuron to another in the nervous system.
Local Potential
Changes in the electric potential of a neuron's membrane that are confined to a small area, unlike action potentials that can spread.
- Describe the process of synaptic transmission, including the role of neurotransmitters and the sequence of events from neurotransmitter release to response in the postsynaptic cell.
Verified Answer
DD
Deion DavisMay 02, 2024
Final Answer :
E
Explanation :
The correct sequence for synaptic transmission is: (5) An action potential arrives at the presynaptic terminal, causing the release of neurotransmitter. (3) The neurotransmitter then diffuses across the synaptic cleft. (2) It binds to receptors on the postsynaptic cell. (4) This binding increases membrane permeability to ions such as Na+, leading to (1) a local potential change in the postsynaptic cell.
Learning Objectives
- Describe the process of synaptic transmission, including the role of neurotransmitters and the sequence of events from neurotransmitter release to response in the postsynaptic cell.