Given these phrases:
(1) neuron cell bodies in the nuclei of cranial nerves
(2) neuron cell bodies in the lateral gray horn of the spinal cord
(T1-L2 and S2-S4)
(3) two synapses between the CNS and effectors
(4) regulates smooth muscle
Which of the phrases are true for the autonomic nervous system?
a. 1,3 b. 2,4 c. 1,2,3 d. 2,3,4 e. 1,2,3,4
Introduction:
The autonomic nervous system controls the unconscious movement of the body. It has two important divisions’ sympathetic and parasympathetic divisions. They are present on the preganglionic neuron of the CNS and autonomic ganglia of the PNS. The sympathetic axons travel through the sympathetic chain ganglia to their target cell. A ganglion is nerve cell bodies which are connected to one another in a series and form plexus.
Answer to Problem 1RAC
The correct answer is option (e) 1,2,3,4.
Explanation of Solution
Explanation/justification for the correct answer:
Option (e).1,2,3,4. All the given option is true for autonomic nervous system. The axon of the parasympathetic preganglionic neuron cell bodies is present in the cranial nerves. The lateral gray horn is a motor neuron fiber of the spinal cord that connects two sides of cord, dorsal and ventral ganglia. There are two synapses between the CNS and effectors Ach at the first synapse and Ach or norepinephrine at the second synapse. It helps in regulating smooth muscle contraction. So, the correct answer is option (e).
Explanation for incorrect answer:
Option (a).1,3. This option is not appropriate because the statement second and fourth is also true. The lateral gray horn from T1 − L2 is present in the sympathetic division and S2- S4 is located in the parasympathetic division. The sympathetic division of the ANS helps in regulating smooth muscle contraction.
Option (b).2,4. This option is not correct because the axon of the parasympathetic preganglionic neuron cell bodies is present in the nuclei of cranial nerves of the CNS which helps in regulating the ANS activity. There are two synapses one at the end of each neuron, first in the CNS and second in the ganglion.
Option (c).1,2,3. This is an invalid option because the fourth statement is also correct, the sympathetic division of the autonomic nervous system helps in regulating the contraction of the smooth muscle of the target organ.
Option (d).2,3,4. This option is not appropriate because the first statement is also true, The lateral gray horn from T1−L2 is present in the sympathetic division and S2-S4 is located in the parasympathetic division.
Want to see more full solutions like this?
Chapter 16 Solutions
EBK SEELEY'S ANATOMY & PHYSIOLOGY
- Artificial Selection: Explain how artificial selection is like natural selection and whether the experimental procedure shown in the video could be used to alter other traits. Why are quail eggs useful for this experiment on selection?arrow_forwardDon't give AI generated solution otherwise I will give you downwardarrow_forwardHello, Can tou please help me to develope the next topic (in a esquematic format) please?: Function and Benefits of Compound Microscopes Thank you in advance!arrow_forward
- Identify the AMA CPT assistant that you have chosen. Explain your interpretation of the AMA CPT assistant. Explain how this AMA CPT assistant will help you in the future.arrow_forwardwhat is the difference between drug education programs and drug prevention programsarrow_forwardWhat is the formula of Evolution? Define each item.arrow_forward
- Define the following concepts from Genetic Algorithms: Mutation of an organism and mutation probabilityarrow_forwardFitness 6. The primary theory to explain the evolution of cooperation among relatives is Kin Selection. The graph below shows how Kin Selection theory can be used to explain cooperative displays in male wild turkeys. B When paired, subordinant males increase the reproductive success of their solo, dominant brothers. 0.9 C 0 Dominant Solo EVOLUTION Se, Box 13.2 © 2023 Oxford University Press rB rB-C Direct Indirect Fitness fitness fitness gain Subordinate 19 Fitness After A. H. Krakauer. 2005. Nature 434: 69-72 r = 0.42 Subordinant Dominant a) Use Hamilton's Rule to show how Kin Selection can support the evolution of cooperation in this system. Show the math. (4 b) Assume that the average relatedness among male turkeys in displaying pairs was instead r = 0.10. Could kin selection still explain the cooperative display behavior (show math)? In this case, what alternative explanation could you give for the behavior? (4 pts) 7. In vampire bats (pictured below), group members that have fed…arrow_forwardExamine the following mechanism and classify the role of each labeled species in the table below. Check all the boxes that applyarrow_forward
- 1. Define and explain the two primary evolutionary consequences of interspecific competitionarrow_forward2 A linear fragment of DNA containing the Insulin receptor gene is shown below, where boxes represent exons and lines represent introns. Assume transcription initiates at the leftmost EcoRI site. Sizes in kb are indicated below each segment. Vertical arrows indicate restriction enzyme recognition sites for Xbal and EcoRI in the Insulin receptor gene. Horizontal arrows indicate positions of forward and reverse PCR primers. The Horizontal line indicates sequences in probe A. Probe A EcoRI Xbal t + XbaI + 0.5kb | 0.5 kb | 0.5 kb | 0.5kb | 0.5 kb | 0.5 kb | 1.0 kb EcoRI On the gel below, indicate the patterns of bands expected for each DNA sample Lane 1: EcoRI digest of the insulin receptor gene Lane 2: EcoRI + Xbal digest of the insulin receptor gene Lane 3: Southern blot of the EcoRI + Xbal digest insulin receptor gene probed with probe A Lane 4: PCR of the insulin receptor cDNA using the primers indicated Markers 6 5 4 1 0.5 1 2 3 4arrow_forward4. (10 points) woman. If both disease traits are X-linked recessive what is the probability A man hemizygous for both hemophilia A and color blindness mates with a normal hemophilia A nor colorblindness if the two disease genes show complete that a mating between their children will produce a grandson with neither a. linkage? (5 points) that a mating between their children will produce a grandson with both hemophilia A and colorblindness if the two disease genes map 40 cM apart? (5 points)arrow_forward
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningEssentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:Cengage