The divisions of the nervous system can be divided into the central and peripheral nervous system. These are then divided and subdivided into components such as the somatic and autonomic nervous system and then the sympathetic and parasympathetic divisions. This type of representation of the nervous system is most akin to which of the following? clustering a conceptual hierarchy the link method the method of loci
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- The image attached below depicts a histological slice of human cerebral cortex tissue.Using knowledge of the central nervous system and various cell-cell interactions, identify thekey type(s) of cell junctions present in this image (for example, tight junctions, gap junctions, and adherens junctions/desmosomes). Briefly describe the function of these celljunctions. How would the function of the central nervous system be impaired if your above identified celljunctions were disrupted?In 2003, the Nobel Prize in Physiology or Medicine wasawarded to Paul C. Lauterbur and Sir Peter Mansfield fordiscoveries related to magnetic resonance imaging (MRI).This is a tool to see the structures of the body (not just thenervous system) that depends on magnetic fields associatedwith certain atomic nuclei. The utility of this technique inthe nervous system is that fat tissue and water appear asdifferent shades between black and white. Because whitematter is fatty (from myelin) and gray matter is not, theycan be easily distinguished in MRI images. Visit the NobelPrize website (http://openstaxcollege.org/l/nobel_2) toplay an interactive game that demonstrates the use of thistechnology and compares it with other types of imagingtechnologies. Also, the results from an MRI session arecompared with images obtained from x-ray or computedtomography. How do the imaging techniques shown in thisgame indicate the separation of white and gray mattercompared with the freshly dissected tissue…Visit this site (http://openstaxcollege.org/l/neurolab)to see a virtual neurophysiology lab, and to observeelectrophysiological processes in the nervous system,where scientists directly measure the electrical signalsproduced by neurons. Often, the action potentials occur sorapidly that watching a screen to see them occur is nothelpful. A speaker is powered by the signals recorded froma neuron and it “pops” each time the neuron fires an actionpotential. These action potentials are firing so fast that itsounds like static on the radio. Electrophysiologists canrecognize the patterns within that static to understand whatis happening. Why is the leech model used for measuringthe electrical activity of neurons instead of using humans?
- Charcot-Marie-Tooth disease (CMT)causes motor and sensory neuropathies of the peripheral nervous system characterized by progressive loss of muscle tissue and touch sensation across various parts of the body. such a union would result in a cniia wiu CiV.The nervous system helps all parts of the body communicate with each other. It is made up of several sub-divisions with each subdivision havingstructural and functional characteristics that distinguish it from the others. Complete the diagram to show all the missing sections and explain their functions and where relevant their relationships to each other.Demyelination is the loss of myelin from neurones that are normally myelinated. Multiple sclerosis is a disease in which demyelination occurs in neurones involved in coordinating muscle movement. Using your knowledge of nerve impulse generation and propagation, explain how nerve impulse generation and propagation would be affected in people who have multiple sclerosis. The explanation needs to be in the form of a step by step sequence of annotated drawings. This could be in the form of an annotated cartoon/picture strip. Compare this to nerve impulse generation and propagation in an individual who does not have multiple sclerosis.
- The nervous system has definitely homeostatic relationships with other body systems. Cite at least 5 examples of this homeostatic relationship/s.For the nervous system to convey information using electrical signals, the signals typically must be passed from one neuron to another. Oftentimes, this transfer of information across the synapse occurs via the release of neurotransmitters from the pre-synaptic terminal. When a large stimulus is detected in one neuron, it often conveys this information by releasing a larger amount of neurotransmitter into the synapse.Which of the following is TRUE: Question 42 options: The periosteum is the outermost layer of connective tissue surrounding each peripheral nerve Neuroglia actively support and protect neurons The gray matter of the CNS is largely made up of myelinated axons Neuronal cell bodies are located primarily in white matter None of the above are true
- The Purkinje cell is an example of this type of neuron. sensory neuron pyramidal neuron Oprincipal neuron Obipolar neuronWhat is an example of asituation in which the neuroncell body is located in a part ofthe body and its axonalterminal portion is in anotherdistant part of the body? Whydoes this happen?Please note these are all one question group and should be answered as such! Which of the following statements accurately defines epineurium? A. Fluid-filled space at a synapse through which neurotransmitters diffuse B. A vesicle containing neurotransmitters in the axon terminal of a neuron C. The CT sheath that binds together the groups of fascicles, blood vessels, and lymphatic vessels in a peripheral nerve D. The branch of the ANS that adapts the body for rest and digestion Which of the following statements accurately defines sacral plexus? A. The ventral rami of C1–C4 (and a small contribution from C5) that serve the head and neck B. The ventral rami of L1–L4 that serve the pelvis and lower limb C. The ventral rami of C5–T1 that serve the upper limb D. The ventral rami of L4–S4 that serve the pelvis and lower limb