A&P INTEG APPRCH LL
4th Edition
ISBN: 9781266242748
Author: McKinley
Publisher: MCG
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Question
Chapter 15.4, Problem 11WDYL
Summary Introduction
To analyze:
The diagrams of the spinal and splanchnic nerve pathways as well as the difference between them which are based on the location of the synapses of these nerves.
Introduction:
Nerves are the carrier of electrical signals (nerve impulses). These nerves consist of several bundles of nerve cells (neurons). Based on their sources, these nerves are classified into two types. These are cranial and spinal nerves.
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Students have asked these similar questions
Which of the following statements concerning synapses is FALSE?
O A) Modulation of synaptic strength can be presynaptic of postsynaptic
B) High frequency stimulation in the presynaptic neuron often leads to
DECREASED neurotransmitter release
O C) Modulation of synaptic strength can either be short term, lasting seconds, or
long term, lasting as long as a lifetime.
D) Agonists are drugs that mimic neurotransmitters and antagonists are drugs
that block the action of neurotransmitters
O E) Certain drugs prevent the reuptake of neurotransmitter from the synapse
How is the choice of neurochemical to be released at a synapse determined?
A) We don't have enough information to draw conclusions about how this process occurs.
B) The postsynaptic structure signals its "choice" to the presynaptic structure.
C) The presynaptic structure begins to release its neurochemical onto postsynaptic structures, which adapt by producing the appropriate receptors.
D) The "choice" is determined by the genes of both the pre- and postsynaptic cells.
If an excitatory neurotransmitter binds to the post-synaptic neuron, what type of an event will that cause?
What happens if the neurotransmitter is an inhimitory neurotransmitter?
What type of ion will move into the post-synaptic neuron?
What type of polarizing event will occur?
and What happen at the axon hillock?
Chapter 15 Solutions
A&P INTEG APPRCH LL
Ch. 15.1 - What criterion is used to organize the nervous...Ch. 15.1 - Prob. 2WDYLCh. 15.1 - What CNS structure is the integration and command...Ch. 15.2 - Prob. 4WDYLCh. 15.2 - Describe the general anatomic differences in the...Ch. 15.2 - Prob. 6WDYLCh. 15.3 - Which four cranial nerves have a parasympathetic...Ch. 15.3 - What organs are innervated by the pelvic...Ch. 15.4 - Prob. 9WDYLCh. 15.4 - Prob. 10WDYL
Ch. 15.4 - Prob. 11WDYLCh. 15.4 - In what ways does the adrenal medulla pathway help...Ch. 15.5 - Prob. 13WDYLCh. 15.5 - Prob. 14WDYLCh. 15.6 - Prob. 15WDYLCh. 15.6 - Prob. 16WDYLCh. 15.6 - Prob. 17WDYLCh. 15.6 - Prob. 18WDYLCh. 15.6 - Prob. 19WDYLCh. 15.7 - Prob. 20WDYLCh. 15.7 - Prob. 21WDYLCh. 15.7 - Prob. 22WDYLCh. 15.7 - What are the body structures innervated by the...Ch. 15.8 - Prob. 24WDYLCh. 15 - A splanchnic nerve in the sympathetic division of...Ch. 15 - Some parasympathetic preganglionic neuron cell...Ch. 15 - Prob. 3DYKBCh. 15 - Prob. 4DYKBCh. 15 - Sympathetic division preganglionic axons travel to...Ch. 15 - Prob. 6DYKBCh. 15 - Prob. 7DYKBCh. 15 - A sympathetic postganglionic axon is a. long and...Ch. 15 - Prob. 9DYKBCh. 15 - Prob. 10DYKBCh. 15 - Prob. 11DYKBCh. 15 - For the following ganglia, identify the location...Ch. 15 - Prob. 13DYKBCh. 15 - Prob. 14DYKBCh. 15 - Prob. 15DYKBCh. 15 - Prob. 16DYKBCh. 15 - Prob. 17DYKBCh. 15 - What may occur with the mass activation of the...Ch. 15 - Prob. 19DYKBCh. 15 - Prob. 20DYKBCh. 15 - Prob. 1CALCh. 15 - Arlene was in a heightened state of alertness well...Ch. 15 - George has hypertension (high blood pressure). His...Ch. 15 - Prob. 4CALCh. 15 - Prob. 5CALCh. 15 - Prob. 1CSLCh. 15 - When you were younger, your parents may have told...Ch. 15 - Prob. 3CSL
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Similar questions
- Depression is a condition in which sufferers may feel low mood, lack of motivation and sleep. It is caused by a lack of serotonin in the synaptic cleft of neurone pathways. Serotonin is a neurotransmitter. a) Describe how serotonin acts as a neurotransmitter. Using your understanding of synaptic transmission, explain how communication between neurones in serotonin pathways of the brain would be affected in someone with depression. b) Doctors use tubocurarine drug as an anaesthetic as it temporarily paralyses muscles. It blocks receptors at neuromuscular junctions. Why does this lead to paralysis?arrow_forwardWhich statement is true regarding the neuron synapse? A) the preganglion and post ganglionic Neurons physically touch B) a neuronal synapse consists of dendrites on a peeganglionic neuron and the axon terminal is a postganglionic neuron C) binding of a neurotransmitter on a post ganglionic neuron always generates an action perennial D) neurotransmitters can be degraded by enzymes within the synaptic cleft to terminate its effectarrow_forwardthe bacterium clostridium tetani produce a toxin called tetanospasmin, the causative agent os the disease tetanus. the toxin prevents the release of inhibitory transmitters in the CNS and so blocks the resulting IPSPs they would normally generate. what are some of the functions of inhibitory synapses? considering this what symptoms would you expect from the disease tetanus, and why? ( hint: imagine trying to stand up if all of the muscles in your lower limb contracted at the same time.)arrow_forward
- When an impulse arrives at the synapse, the synaptic vesicles open and release neurotransmitters into the cleft within a thousandth of a second. Within another ten thousandth of a second, these molecules have diffused across the cleft and bound to receptor sites in the effector cell. In what two ways is transmission across a synapse terminated so that the neuron’s signal is concluded?arrow_forwardWhat is a synapse? Explain the difference between an excitatory and an inhibitory synapse.arrow_forwardWhat is the role of acetylcholinesterase (AChE) in the synapse?arrow_forward
- If a pre-synaptic cell releases a large amount of excitatory neurotransmitter into the synaptic cleft, how will that affect the PSPs? Does that large release ensure that the postsynaptic cell will initiate an action potential, and what role does the axon hillock play in this process/decision?arrow_forwardFill in the descriptions for the following terms as they relate to the PNS or CNS neural tissue: Tract: Bundles of [ Select ] ["axons", "cell bodies"] in the [ Select ] ["CNS", "PNS"] Nerve: Bundles of [ Select ] ["axons", "cell bodies"] in the [ Select ] ["CNS", "PNS"] Ganglion: Bundles of [ Select ] ["axons", "cell bodies"] in the [ Select ] ["CNS", "PNS"] Nucleus: Bundles of [ Select ] ["axons", "cell bodies"] in the [ Select ] ["CNS", "PNS"]arrow_forwardWhat is inhibitory synapse ? Prepare the figure of excitatorysynapse ?arrow_forward
- The purpose of an action potential (AP) is to propagate a signal down the axon to the axon terminal. What happens once it reaches the axon terminal? Using the experiment showing recordings from the post-synaptic cell (endplate potentials), describe what happens when an AP reaches the axon terminal and subsequently transmits the signal to a neighboring cell. What does this tell us about chemical neurotransmission?arrow_forwardWhy are the two major neurotransmitters groups known as cholinergic synapses or adrenergic synapses?arrow_forwardGiven the steps shown below, which of the following is the correct sequence for transmission at a chemical synapse? 1. neurotransmitter binds with receptor 2. sodium ions rush into neuron's cytoplasm 3. action potential depolarizes the presynaptic membrane 4. ion channel opens to allow particular ion to enter cell 5. synaptic vesicles release neurotransmitter into the synaptic cleft O 1, 2, 3, 4, 5 O 5, 1, 2, 4, 3 O 2, 3, 5, 4, 1 O4, 3, 1, 2, 5 O 3, 2, 5, 1, 4arrow_forward
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