Feb 23, 2024 NURS 6630 Assignment: Short Answer Assessment
NURS 6630 Assignment: Short Answer Assessment
A Sample Answer For the Assignment: NURS 6630 Assignment: Short Answer Assessment
In 4 or 5 sentences, describe the anatomy of the basic unit of the nervous system, the neuron. Include each part of the neuron and a general overview of electrical impulse conduction, the pathway it travels, and the net result at the termination of the impulse. Be specific and provide examples.
According to Javaid et al. (2020), the human brain comprises over 100 billion distinct neurons. The neuron’s cell body harbors the nucleus and serves as the point of attachment for both the dendrites and axons of the neuron. The term “soma” is sometimes used to refer to the cell body, while axon clusters, commonly referred to as nerves in some contexts, can be found throughout the body in various locations. Neurons can interact with one another even when they are separated by large distances, which is made possible by the fact that they contain dendrites and axons. Furthermore, owing to the mechanism of electrical conduction intrinsic to neurons, nerve impulses can propagate at a remarkable pace, marked by a transient electrical oscillation that traverses from the neuronal soma, through its dendrites, and culminates at the terminal end of the axon.
Answer the following (listing is acceptable for these questions):What are the major components that make up subcortical structures?Basal ganglia: Pertains to a cluster of subcortical nuclei that are primarily accountable for regulating motor control (Wilfrid Jänig, 2022). Additionally, they play a crucial role in executive functions, motor learning, and emotional and behavioral regulation.Limbic structure: The limbic system is responsible for the regulation of motivation, mood, learning, and memory through its intricate network of structures and interconnected regions(Wilfrid Jänig, 2022). The interface between the subcortical structures and the cerebral cortex is located within the limbic system. The limbic system exerts its influence on the autonomic nervous system and the endocrine systemThalamic structures: The structure in question comprises four distinct components, namely the thalamus, epithalamus, subthalamus, and hypothalamus. Each of the aforementioned structures plays a crucial role in the survival and optimal operation of the human body (Wilfrid Jänig, 2022). Therefore, it is imperative to familiarize oneself with their anatomy. Cerebellar: The cerebellum is a neuroanatomical structure situated in the posterior cranial fossa, superior and posterior to the pontomedullary junction, where the spinal cord merges with the brainstem. The aforementioned structure is a significant subcortical entity that has an impact not only on motor function but also potentially on cognitive and emotional processes (Wilfrid Jänig, 2022).
Which component plays a role in learning, memory, and addiction?
According to Wilfrid Janig (2022), the limbic structure contributes to the capacity of the human body to acquire new information and retain it. Furthermore, it assumes a crucial function in the control of cognitive attention and behaviors that are addictive.
What are the two key neurotransmitters located in the nigra striatal region of the brain that play a major role in motor control?Dopamine: While the activity of dopaminergic cells cannot directly dictate movements, a recent study conducted on humans has indicated that the consistent levels of dopamine present in the dorsal striatum may contribute to the facilitation of regular motion by encoding the sensitivity to the energy expenditure of a movement (Skelin et al., 2019). This implicit signal can be interpreted as a “motor motivational” cue.
Gamma-aminobutyric acid (GABA): It is widely distributed throughout the nervous system and plays a crucial role in inhibiting the transmission of signals. It is essential for regulating movement, both in the cortex and subcortical regions of the brain.
In 3 or 4 sentences, explain how glial cells function in the central nervous system. Be specific and provide examples.
The phrase “glial cells” may refer to several different kinds of glial cells, including astrocytes, Schwann cells, oligodendrocytes, and microglial cells all of which have a unique role in ensuring that the brain continues to operate normally (Yang & Zhou, 2019). Astrocytes are responsible for controlling blood flow, as well as supplying neurons with mitochondria and the components necessary to construct neurotransmitters, which are the driving force behind neuronal metabolism. Schwann cells play an essential role in the development, maintenance, functioning, and regeneration of peripheral nerves. Oligodendrocytes are chiefly accountable for the production and upkeep of the myelin sheath that envelops axons within the nervous system while microglia are enduring brain cells that govern brain maturation, the safeguarding of neural networks, and the recuperation from injuries.
The synapse is an area between two neurons that allows for chemical communication. In 3 or 4 sentences, explain what part of the neurons are communicating with each other and in which direction does this communication occur? Be specific.
When an action potential is generated at the chemical synapse, the neuron at the presynaptic cleft is stimulated, which results in the release of neurotransmitters, which are the molecules that are responsible for transporting information being propagated from the presynaptic gap to the postsynaptic cleft, which is where it is accepted by another cell. The dendrite of the receiving neuron is the one that is responsible for receiving the message from the axon terminal of the transmitting neuron. Because one axon may create synapses on a large number of postsynaptic cells, it can interact with a large number of cells (Stadelmann et al., 2019). As a consequence of this, a single neuron may receive information from the other neurons since it is capable of receiving millions of synaptic inputs from a wide variety of neurons that are responsible for transmitting presynaptic signals.
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In 3–5 sentences, explain the concept of “neuroplasticity.” Be specific and provide examples.
Neuroplasticity, commonly referred to aseither brain plasticityor neural plasticity, denotes a phenomenon wherein the brain encounters adaptive modifications in both functional and structural domains. The nervous system is capable of modifying its activity in response to both internal and external stimuli through the process of restoring its functions, pattern, or connections following events such as cerebrovascular incidents or traumatic brain injuries (Innocenti, 2022). These alterations may be helpful in that they lead to the regeneration of function after an injury, neutral in that there is no change, or pathologically detrimental with the resulting pathological consequences.The notion of neuroplasticity can be deconstructed into two primary mechanisms, which are functional reorganizationand collateral sprouting/neuronal regeneration.
References
Innocenti, G. M. (2022). Defining neuroplasticity. Handbook of Clinical Neurology, 3–18. https://doi.org/10.1016/b978-0-12-819410-2.00001-1
Javaid, M. A., Schellekens, H., Cryan, J. F., & Toulouse, A. (2020). Evaluation of Neuroanatomy Web Resources for Undergraduate Education: Educators’ and Students’ Perspectives. Anatomical sciences education, 13(2), 237-249. https://doi.org/10.1002/ase.1896
Skelin, I., Kilianski, S., & McNaughton, B. L. (2019). Hippocampal coupling with cortical and subcortical structures in the context of memory consolidation. Neurobiology of Learning and Memory, 160, 21–31. https://doi.org/10.1016/j.nlm.2018.04.004
Stadelmann, C., Timmler, S., Barrantes-Freer, A., & Simons, M. (2019). Myelin in the Central Nervous System: Structure, Function, and Pathology. Physiological Reviews, 99(3), 1381–1431. https://doi.org/10.1152/physrev.00031.2018
Wilfrid Jänig. (2022). The Integrative Action of the Autonomic Nervous System. Cambridge University Press.
Yang, Q.-Q., & Zhou, J.-W. (2019). Neuroinflammation in the central nervous system: Symphony of glial cells. Glia, 67(6), 1017–1035. https://doi.org/10.1002/glia.23571
Appropriate Drug Therapy for a Patient with MDD and a History of Alcohol Abuse
A combination of an antidepressant and a medicine that treats alcohol abuse would probably be the best pharmacological therapy for a patient with MDD and a history of alcohol consumption. As a first-line therapy for MDD, selective serotonin reuptake inhibitors like fluoxetine or sertraline are advised. Naltrexone may also be administered to ease alcohol withdrawal symptoms and cravings.
In this patient, antidepressants such as monoamine oxidase inhibitors are not advised since they raise the risk of seizures. Within six to eight weeks of beginning treatment, the patient should see a reduction in symptoms, but it’s crucial to keep up the medication for at least six to twelve months to avoid relapse (Akbar et al., 2018).
Predictors of Late Onset Generalized Anxiety Disorder
A past history of depression
Ongoing medical issues
Trauma or abuse
A family history of anxiety disorders
(Mohammadi et al., 2020).
Potential Neurobiology Causes of Psychotic Major Depression
Abnormal activity in the hypothalamic-pituitary-adrenal axis
Abnormal activity in the noradrenergic system
Abnormal activity in the serotonergic system
Abnormal activity in the dopaminergic system
(Dean et al., 2017).
Symptoms Required for Major Depression Episode to Occur
Persistent feelings of hopelessness or loss of vigor or pleasure
Exhaustion or lack of energy
Difficulty concentrating or making decisions
Changes in appetite or sleeping patterns
Feelings of guilt or inadequacy
Suicidal or death-related thoughts
(Pykel et al., 2022).
Classes of Drugs That Can Precipitate Insomnia
Beta blockers for example Propranolol
Corticosteroids for example prednisone
Antidepressant, for example
(Bonnet et al, .2021).
References
Akbar, M., Egli, M., Cho, Y. E., Song, B. J., & Noronha, A. (2018). Medications for alcohol use disorders: An overview. Pharmacology & Therapeutics, 185, 64-85. doi: 10.1016/j.pharmthera.2017.11.007.
Mohammadi, M. R., Pourdehghan, P., Mostafavi, S. A., Hooshyari, Z., Ahmadi, N., & Khaleghi, A. (2020). Generalized anxiety disorder: Prevalence, predictors, and comorbidity in children and adolescents. Journal of Anxiety Disorders, 73, 102234. Doi: 10.1016/j.janxdis.2020.102234.
Dean, J., & Keshavan, M. (2017). The neurobiology of depression: An integrated view. Asian Journal of Psychiatry, 27, 101-111. Doi: 10.1016/j.ajp.2017.01.025
Paykel, E. S. (2022). Basic concepts of depression. Dialogues in clinical neuroscience, 10(3). Doi: 10.31887/DCNS.2008.10.3/espaykel
Bonnet, M. H., & Arand, D. L. (2021). Risk factors, comorbidities, and consequences of insomnia in adults. Up-to-date, Waltham, MA.
Short Answer Assessment
In 4 or 5 sentences, describe the anatomy of the basic unit of the nervous system, the neuron. Include each part of the neuron and a general overview of electrical impulse conduction, the pathway it travels, and the net result at the termination of the impulse. Be specific and provide examples.
According to Javaid et al. (2020), the human brain comprises over 100 billion distinct neurons. The neuron’s cell body harbors the nucleus and serves as the point of attachment for both the dendrites and axons of the neuron. The term “soma” is sometimes used to refer to the cell body, while axon clusters, commonly referred to as nerves in some contexts, can be found throughout the body in various locations.
Neurons can interact with one another even when they are separated by large distances, which is made possible by the fact that they contain dendrites and axons. Furthermore, owing to the mechanism of electrical conduction intrinsic to neurons, nerve impulses can propagate at a remarkable pace, marked by a transient electrical oscillation that traverses from the neuronal soma, through its dendrites, and culminates at the terminal end of the axon.
Answer the following (listing is acceptable for these questions):
What are the major components that make up subcortical structures?
Basal ganglia: Pertains to a cluster of subcortical nuclei that are primarily accountable for regulating motor control (Wilfrid Jänig, 2022). Additionally, they play a crucial role in executive functions, motor learning, and emotional and behavioral regulation.
Limbic structure: The limbic system is responsible for the regulation of motivation, mood, learning, and memory through its intricate network of structures and interconnected regions(Wilfrid Jänig, 2022). The interface between the subcortical structures and the cerebral cortex is located within the limbic system. The limbic system exerts its influence on the autonomic nervous system and the endocrine system
Thalamic structures: The structure in question comprises four distinct components, namely the thalamus, epithalamus, subthalamus, and hypothalamus. Each of the aforementioned structures plays a crucial role in the survival and optimal operation of the human body (Wilfrid Jänig, 2022). Therefore, it is imperative to familiarize oneself with their anatomy.
Cerebellar: The cerebellum is a neuroanatomical structure situated in the posterior cranial fossa, superior and posterior to the pontomedullary junction, where the spinal cord merges with the brainstem. The aforementioned structure is a significant subcortical entity that has an impact not only on motor function but also potentially on cognitive and emotional processes (Wilfrid Jänig, 2022).
Which component plays a role in learning, memory, and addiction?
According to Wilfrid Janig (2022), the limbic structure contributes to the capacity of the human body to acquire new information and retain it. Furthermore, it assumes a crucial function in the control of cognitive attention and behaviors that are addictive.
What are the two key neurotransmitters located in the nigra striatal region of the brain that play a major role in motor control?
Dopamine: While the activity of dopaminergic cells cannot directly dictate movements, a recent study conducted on humans has indicated that the consistent levels of dopamine present in the dorsal striatum may contribute to the facilitation of regular motion by encoding the sensitivity to the energy expenditure of a movement (Skelin et al., 2019). This implicit signal can be interpreted as a “motor motivational” cue.
Gamma-aminobutyric acid (GABA): It is widely distributed throughout the nervous system and plays a crucial role in inhibiting the transmission of signals. It is essential for regulating movement, both in the cortex and subcortical regions of the brain.
In 3 or 4 sentences, explain how glial cells function in the central nervous system. Be specific and provide examples.
The phrase “glial cells” may refer to several different kinds of glial cells, including astrocytes, Schwann cells, oligodendrocytes, and microglial cells all of which have a unique role in ensuring that the brain continues to operate normally (Yang & Zhou, 2019). Astrocytes are responsible for controlling blood flow, as well as supplying neurons with mitochondria and the components necessary to construct neurotransmitters, which are the driving force behind neuronal metabolism.
NURS 6630 Assignment Short Answer Assessment
Schwann cells play an essential role in the development, maintenance, functioning, and regeneration of peripheral nerves. Oligodendrocytes are chiefly accountable for the production and upkeep of the myelin sheath that envelops axons within the nervous system while microglia are enduring brain cells that govern brain maturation, the safeguarding of neural networks, and the recuperation from injuries.
The synapse is an area between two neurons that allows for chemical communication. In 3 or 4 sentences, explain what part of the neurons are communicating with each other and in which direction does this communication occur? Be specific.
When an action potential is generated at the chemical synapse, the neuron at the presynaptic cleft is stimulated, which results in the release of neurotransmitters, which are the molecules that are responsible for transporting information being propagated from the presynaptic gap to the postsynaptic cleft, which is where it is accepted by another cell. The dendrite of the receiving neuron is the one that is responsible for receiving the message from the axon terminal of the transmitting neuron.
Because one axon may create synapses on a large number of postsynaptic cells, it can interact with a large number of cells (Stadelmann et al., 2019). As a consequence of this, a single neuron may receive information from the other neurons since it is capable of receiving millions of synaptic inputs from a wide variety of neurons that are responsible for transmitting presynaptic signals.
In 3–5 sentences, explain the concept of “neuroplasticity.” Be specific and provide examples.
Neuroplasticity, commonly referred to aseither brain plasticityor neural plasticity, denotes a phenomenon wherein the brain encounters adaptive modifications in both functional and structural domains. The nervous system is capable of modifying its activity in response to both internal and external stimuli through the process of restoring its functions, pattern, or connections following events such as cerebrovascular incidents or traumatic brain injuries (Innocenti, 2022).
These alterations may be helpful in that they lead to the regeneration of function after an injury, neutral in that there is no change, or pathologically detrimental with the resulting pathological consequences.The notion of neuroplasticity can be deconstructed into two primary mechanisms, which are functional reorganizationand collateral sprouting/neuronal regeneration.
References
Innocenti, G. M. (2022). Defining neuroplasticity. Handbook of Clinical Neurology, 3–18. https://doi.org/10.1016/b978-0-12-819410-2.00001-1
Javaid, M. A., Schellekens, H., Cryan, J. F., & Toulouse, A. (2020). Evaluation of Neuroanatomy Web Resources for Undergraduate Education: Educators’ and Students’ Perspectives. Anatomical sciences education, 13(2), 237-249. https://doi.org/10.1002/ase.1896
Skelin, I., Kilianski, S., & McNaughton, B. L. (2019). Hippocampal coupling with cortical and subcortical structures in the context of memory consolidation. Neurobiology of Learning and Memory, 160, 21–31. https://doi.org/10.1016/j.nlm.2018.04.004
Stadelmann, C., Timmler, S., Barrantes-Freer, A., & Simons, M. (2019). Myelin in the Central Nervous System: Structure, Function, and Pathology. Physiological Reviews, 99(3), 1381–1431. https://doi.org/10.1152/physrev.00031.2018
Wilfrid Jänig. (2022). The Integrative Action of the Autonomic Nervous System. Cambridge University Press.
Yang, Q.-Q., & Zhou, J.-W. (2019). Neuroinflammation in the central nervous system: Symphony of glial cells. Glia, 67(6), 1017–1035. https://doi.org/10.1002/glia.23571
NURS 6630 Assignment: Short Answer Assessment
NURS 6630 Assignment: Short Answer Assessment
https://www.onlinenursingessays.com/?p=93917&preview=true
Before any potential pharmacotherapeutics recommendations in addressing conditions of a patient, as a nurse practitioner in psychiatry, you must have a good understanding of the basic structure and function of the central nervous system and the neuron. For this Assignment, you will review and apply your understanding of neuroanatomy by addressing a set of short answer prompts.
To Prepare:
Review the Learning Resources for this week in preparation to complete this Assignment.
Reflect on the basic function and structure of the neuron in relation to the central nervous system.
Reflect on the inter-connectedness between neurons and the central nervous system, including the pathway and distribution of electrical impulses.
Reflect on how neurons communicate with each other and review the concept of neuroplasticity.
Photo Credit: Getty Images/Science Photo Libra
To complete:
Address the following Short Answer prompts for your Assignment. Be sure to include references to the Learning Resources for this week.
In 4 or 5 sentences, describe the anatomy of the basic unit of the nervous system, the neuron. Include each part of the neuron and a general overview of electrical impulse conduction, the pathway it travels, and the net result at the termination of the impulse. Be specific and provide examples.
Answer the following (listing is acceptable for these questions):
What are the major components that make up the subcortical structures?
Which component plays a role in learning, memory, and addiction?
What are the two key neurotransmitters located in the nigra striatal region of the brain that play a major role in motor control? NURS 6630 Assignment Short Answer Assessment
In 3 or 4 sentences, explain how glia cells function in the central nervous system. Be specific and provide examples.
The synapse is an area between two neurons that allows for chemical communication. In 3 or 4 sentences, explain what part of the neurons are communicating with each other and in which direction does this communication occur? Be specific.
In 3–5 sentences, explain the concept of “neuroplasticity.” Be specific and provide examples.
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Major Components of the Subcortical Structures
Diencephalon – process and relay information to the bodyHippocampus – responsible for long-term memoryPituitary
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