Concept explainers
To discuss:
The role of neurotransmitter in synaptic transmission.
Introduction:
Neurotransmitters are released by exocytosis that binds to specific receptors of the receiving cell. Some of the neurotransmitters are inhibitory, some are excitatory, and for others, the end product depends on the type of receptor the postsynaptic cell has. The norepinephrine (NE) is involved in waking, dreaming, and mood changing. The common function of NE is to mobilize the body and brain for action. Acetylcholine and norepinephrine have both the excitatory and inhibitory effect based on the type of receptor availability. Acetylcholine exhibits skeletal muscles, but has an inhibitory effect on cardiac muscles.
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Chapter 12 Solutions
LSC (CONCORDIA UNIV ST PAUL) BIO 315/316: B&N DPF Connect with APR and Phils Online Access for Anatomy and Physiology: The Unity of Form and Function 180 Day Access ENTRP
- “All-or-none” response in impulse conductionmeans thatarrow_forwardHow one action potential triggers another; how the continuous conduction seen in unmyelinated nerve fibers result from a chain reaction of action potentials; and what normally prevents the signal from traveling backward to the neurosoma.arrow_forwardan example of the organization of a neurotransmitter.arrow_forward
- At __________ synapses, neurotransmitters hyperpolarize the membrane, by making it more permeable to K+ or moving membrane potential away from threshold (hyperpolarizing), and making generation of an action potential less likely; these are inhibitory postsynaptic potentials (EPSPs).arrow_forwardWhy the production of an EPSP and IPSP depend on both the neurotransmitter released by the presynaptic neuron and the type of receptor on the postsynaptic neuron.arrow_forwardNerve transmission and communication with other neurons. DI it restores the membrane potential the chemical that talks between one neuron and the other neuron the point between the neuron and the muscle transmits impulse to dendrite it carries receptors on its surface it produces the neurotransmitter 1. Neurotransmitter 2. Presynaptic membrane 3. Postsynaptic membrane 4. Nat-K+ pump 5. Neuromuscular junction 6. Axonarrow_forward
- Neuron(key terms: dendrites, axons, electrical signals, communication) This feature of the neuron helps it do its job becausearrow_forwardA/An _____ synapse is formed when a presynaptic neuron synapses with the cell body of a postsynaptic neuronarrow_forwardThe structure of sensory and motor neuronarrow_forward
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
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