They are the fundamental units that send and receive signals which allow us to move our muscles, feel the external world, think, form memories and much more. c. Astrocytes b. Which of the following cells are not found in a connective tissue? Longevity 2. b. the structure is closer to the midline of the brain. Which of the following is correct? b. Somatic Nervous System Which pattern of neural processing is important for higher level mental processing such as problem solving? This may account for the cycles of relapse and remission in different patients. True or False, A stimulus traveling toward a synapse appears to open calcium ion channels at the presynaptic end, which in turn promotes fusion of synaptic vesicles to the axonal membrane. It also affects your cerebellum, the part of your brain that controls movement and balance. A. B. Skeletal muscles store nutrient reserves. the somatic nervous system. c. The person may stop breathing. What is the role of calcium in synaptic activity? Which of the following is not characteristic of neurons? Tell why you think so. Strong stimuli cause the amplitude of action potentials generated to increase. B. Myelin prevents the conduction of electricity from the axon hillock to the axon terminal. a. interneuron. What are the exact characteristics of neurons? - Quora d. Neurogenetics. B) They have extreme longevity. a. Mitochondria in a neuron would no longer function. All rights reserved. True or False, If bacteria invaded the CNS tissue, microglia would migrate to the area to engulf and destroy them. A neuron was found to originate in the hippocampus and terminate in the prefrontal cortex. b. expect to find increased blood flow. Solved 26. Which of the following is not a characteristic of | Chegg.com What quantity of mercury spills over when heated to 75.0C75.0{\degree} \mathrm{C}75.0C ? d . d. Cingulate cortex. c. It is avascular. (a) They conduct impulses. True or False, Unipolar neurons have axons structurally divided into peripheral and central processes. They control, in this way, from the movement of an arm, thoughts and even feelings through electrical signals that are called nerve impulses. What are the possible responses? d. Interneurons, 16. likely acting upon? B) cholinesterase Which of the following are the cells of nervous tissue? Which of the following describes the excitatory postsynaptic potential? d. astrocytes. c. Cerebellum Functions. C) opening of voltage-regulated channels C. They are mitotic. The term central nervous system refers to the ________. All other trademarks and copyrights are the property of their respective owners. 31. described as having a word on the tip of your tongue, might have abnormal functioning in the: Why does injection of a local anesthetic into a finger still cause a loss of the sensation of touch from the finger? Which of the following portions of the neuron transmits neurotransmitters? Estimate the mass of Hg vapor present in the type of long, thin fluorescent tubes used in offices. Visual disturbances, paralysis, and weakness, Elliot Aronson, Robin M. Akert, Samuel R. Sommers, Timothy D. Wilson, Elliot Aronson, Robin M. Akert, Timothy D. Wilson. 22. a. polymorphisms. Myelinated neurons conduct impulses faster than unmyelinated neurons because? Two subtypes of motor neurons have been identified: inferior and superior. 20. Numerous Nissl bodies were observed, indicating that the neurons had a high ability to synthesize proteins. A) motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands Has component cells designed for conductivity b. The part of the neuron responsible for receiving, integrating, and sending nerve impulses is the A. dendrite. d. the hypothalamus. Which neurons belong to the efferent pathway? negatively charged and contains less sodium. Which division of your nervous system is generating this response? Treatment of pain with local anesthetics leads to an unfavorable decrease in general sensory acuity due to their indiscriminate block of both pain sensing . Which of the following is not true about the cerebral cortex? Characteristics of neurons Flashcards | Quizlet d. reticular activating system. (d) All of these are characteristic of neurons. Which of the following is not characteristic of neurons. Classify Neurons by their Function. B) They can form on receptor endings. A. Sensory. . The part of a neuron that conducts impulses away from its cell body is called a (n) ________. This is an example of: B) synapse c. reticular formation. What function is served by the increased axon diameter at the nodes of Ranvier? 9. ________ potentials are short-lived, local changes in membrane potential that can be either depolarized or hyperpolarized. c) Myelin traps sodium ions on the axon an. b. Neurotransmitters a) control how neurons communicate at the synapse b) guide the development and differentiation of neurons and glial cells c) physically support neurons in the PNS to form nerves d) provide. b. ventricles. c. midbrain. a. Somatic Nervous System Neurons are responsible for transmitting signals throughout the body, a process that allows us to move and exist in the world around us. A gap between Schwann cells in the peripheral system is called a(n) ________. Which ion channel opens in response to a change in membrane potential and participates in the generation and conduction of action potentials? Inflammatory Cytokines Associated with Multiple Sclerosis Directly C) responds to stimuli by gland secretion or muscle contraction, The period after an initial stimulus when a neuron is not sensitive to another stimulus is the ________. ________ is a disease that gradually destroys the myelin sheaths of neurons in the CNS, particularly in young adults. The concentration of __ is higher outside than inside the cell. Neurotransmitters are chemical signals used as a means of communication. These neurons are inhibitory neurons, meaning they release neurotransmitters that keep other neurons from firing. c. working memory. A patient is admitted to the hospital with exacerbation of multiple sclerosis (MS). (1991) finds that the CA1 neuron exhibits trains of action potentials when a small current (< 1 nA) is applied to the soma, but a full calcium spike and burst followed by trains of action potentials when the same small current is applied to . B. Myelin prevents the conduction of electricity from the axon hillock to the axon terminal. b. b. Preganglionic neurons are short and synapse in ganglia located near the spinal cord. Which of the following describes the ANS? b. The person may have an increase in heart rate. ___________ are clusters of neuron cell bodies in the sympathetic and parasympathetic A) They conduct impulses. The landscaping business for the area totaled about$1,340,000 for the year. Psych 4035 Ch 3 Practice and Reading Quizzes, David N. Shier, Jackie L. Butler, Ricki Lewis, Charles Welsh, Cynthia Prentice-Craver, David Shier, Jackie Butler, Ricki Lewis, Chapter 3 Formatting Documents- Val Caylor. Which of the following is not a function of the autonomic nervous system? All of the following describe the functions of astrocytes except: C) are crucial in the production of neurotransmitters a. motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands. Which of the following is NOT a special characteristic of neurons a What effect might a disease that destroyed oligodendrocytes have on neuronal function? c. The cerebral cortex includes the cerebellum. The parasympathetic division includes the pelvic nerves. a. Multi-polar neurons b. Bipolar neurons c. Uni-polar neurons. When information is delivered within the CNS simultaneously by different parts of the neural pathway, the process is called ________ processing. Which membrane potential occurs because of the influx of Na+ through chemically gated channels in the receptive region of a neuron? This results in increased speed of impulse propagation. C) found in ganglia B) motor fibers that conduct nerve impulses from the CNS to skeletal muscles 38. B) called neuroglial cells Which of the following is not a chemical class of neurotransmitters? The actual cause of the neurodegenerative component of the disease is however unclear. Cold sores on the skin of the mouth occur when herpes simplex viruses that are dormant in neural ganglia become active and travel to the skin of the mouth. 45. Ganglia are on or near the target organ. c. hindbrain. b. the blood-brain barrier c. the thalamus. Oligodendrocytes form and maintain the blood-brain barrier. 12. Which statement is true? In myelinated axons the voltage-regulated sodium channels are concentrated at the nodes of Ranvier. 42. Motor neurons transmit the nerve impulses from CNS to effectors (muscles and glands). Saltatory conduction is made possible by ________. 2003-2023 Chegg Inc. All rights reserved. In your opinion, is "A Christmas Memory" merely a vivid portrayal of a memory, or does it also convey a theme, or message? Demyelination interferes with saltatory conduction, which would result in a slowing down of nerve impulse propagation. Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS) coined by inflammation and neurodegeneration. d. increase the density of dendritic spines. Damage to the hippocampus would likely cause impairments to long-term memory C. cell body. The _________________ facilitates balance and the timing of movements. These gases are neurotransmitters that act indirectly. Biochemical Characteristics of iPSC-Derived Dopaminergic Neurons from d. acetylcholine. The autonomic nervous has control centers in the: During depolarization, the inside of the neuron's membrane becomes less negative. response? 70. d. oligodendrocytes fail to myelinate re-growing axons. c. lead to foreign substances entering the brain from the circulatory system. D) size of action potentials, Bipolar neurons are commonly ________. C) diphasic impulses A) peripheral and spinal nerves Even though someone is diagnosed with MS, the axons are not damaged. b. medulla Which of the following is NOT a function or characteristic of neurons? 1.Sensory. B) anchor neurons to blood vessels 33. In doing so, mention: a) the names of the neurons involved, b) where the neurons synapse with each other (2 possible ganglia), c) what Nt is released from each of the neurons. c. Proteoglycans c. Autonomic Nervous System True or False, The action potential is caused by permeability changes in the plasma membrane. c. decrease the activity of postganglionic parasympathetic neurons. Answer (1 of 3): So a neuron is a specialized cell in the brain with certain characteristics. 28. B) norepinephrine a. cerebral aqueduct. A postsynaptic potential is a graded potential that is the result of a neurotransmitter released into the synapse between two neurons. ATP-dependent "motor" proteins such as kinesin, dynein, and myosin are responsible. What distinguishes nerve cells and other excitable membranes (e.g., muscle cells) is that they are capable of changing their resting potential. First, consider an object with an initial position x0x_0x0, an initial velocity v0v_0v0, and an acceleration aaa. What type of channel on the postsynaptic membrane binds neurotransmitter? a) axon b) axon hillock c) dendrites d) soma, Which of the following is not a structural feature of a neuron? - Neurons have a cell body, which contains the majority of the cell's organelles. 2. a. sensory neuron b. interneuron c. motor neuron d. gland e. muscle. In general, neurons cannot be replaced if destroyed. What are the advantages and disadvantages of Europe's communications systems? Specific instructions that encode for traits are called: Conduct chemo-electrical impulses. c. Motor efferent neurons possess long dendrites and short axons. 72. a. meninges. What type of motor neuron stimulates skeletal muscle fibers to contract by the excitation contraction mechanism? 63. D) control the chemical environment around neurons Which of the following statements regarding nervous tissue is not true? A drug that caused someone to make a reckless decision might be affecting the: ce3z/(4zi)3dz_ce^{3z}/(4z-i)^3dz Why? c. somatic nervous system. Estimate the number of moles of Ar in a typical lightbulb. The axon c. The dendrites d. The Nissl bodies. B) are found on "pathfinder" neurons The p.N370S substitution causes a violation of the enzyme conformation, which affects its stability in the cell. Upper motor neurons are classified according to the pathways they travel in C. The Babinski response is not characteristic of paralysis from UMN lesions Which of the following stimuli caused the reaction in the graph on the left? a. astrocytes play a role in neurotransmission. Oligodendrocytes form: D) absolute refractory period. 25 26 Which of the following is not a special characteristic of neurons Neuroglia perform supportive functions in the brain. Ch. 11-12 Flashcards | Quizlet 48. A Pyrex container is completely filled with 275cm3275 \mathrm{~cm}^3275cm3 of mercury at 10.0C10.0{\degree} \mathrm{C}10.0C. (c) They have an exceptionally high metabolic rate. B) They have extreme longevity. The person would have impaired movement while the drug's effects were active. formation. What parts of a neuron are completely contained within a ganglion? Which of the following describes the nervous system integrative function? A chemical messenger that does not directly cause ESPSs or IPSPs but does affect the strength of synaptic transmission is a ________. b. increasing glial scarring. b. polymorphism. acetylcholine d. spines along dendrites. Different types of neurons include sensory, motor, and interneurons, as well as structurally-based neurons, which include unipolar, multipolar, bipolar, and pseudo-unipolar neurons. Which of the following membrane regions would have significant numbers of voltage-gated ion channels? Structural Functional Characteristics of Nervous and Glial Cells a. reduced cerebrospinal fluid. Neurotransmitter binds to receptors on the postsynaptic cell membrane and allows ions to diffuse across the membrane. 100% (3 ratings) Which of the following is NOT a characteristic of neurons? 49. b. hindbrain. Which of the following is not a characteristic of ion channels? The frequency of impulse transmission indicates the stimulus intensity and the brain responds appropriately. d. tremor. c. cause the release of neurotrophins. c. cause imbalance. 3 special characteristics of neurons. group cfibers are not capable of salatory conduction. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. b. astrocytes respond to injury. a. postganglionic terminals. Which cells in the brain remove normal cellular waste? Which nervous system subdivision is a chain of two motor neurons consisting of a preganglionic and a postganglionic neuron? Which of the choices below describes the ANS? We investigated here the direct and differential effects of inflammatory mediators on human neurons. C) They are mitotic. Discover and discuss the meaning of dendrites, axon, membrane polarization, membrane depolarization, and synapses. If a physician identified her patient as a low drug metabolizer, which of the following is most - Neurons have one or more long, slender projections called dendrites, which receive electrical impulses from other neurons. C) guide the migration of young neurons, synapse formation, and helping to determine capillary permeability DI) They have an exceptionally high metabolic rate. a) Neurons are specialized to conduct electrical impulses. 35. Which of the following is not a function of astrocytes? b. Somatics 29. d. motor neuron. True or False, The overlapping functions of the nervous system are sensory input, integration, and motor output. A) support and brace neurons The membrane potential of the postsynaptic membrane changes. In myelinated axons the voltage-regulated sodium channels are concentrated at the nodes of Ranvier. d. The person may have motor tremor. What are the different types of neurons in the ANS and where are they located? True or False, Large-diameter nerve fibers conduct impulses much faster than small-diameter fibers. having a low appetite. A neuron was found to originate in the hippocampus and terminate in the prefrontal cortex. Show the details. 1 and Klioutchnikov et al. When the neurons were damaged, the number of Nissl corpuscles decreased significantly . d. M1. Which of the following is NOT characteristic of the sympathetic a. Expert Answer. destroy ACh a brief period after its release by the axon endings. What type of neuron connects sensory and motor neurons in neural pathways? What is an example of a presynaptic cell? 60. muscles throughout the body? A novel robust adaptive sliding mode control using stochastic gradient C) They increase amplitude as they move away from the stimulus point. a. a. temporal lobe. Aim: The Combining Mechanisms for Better Outcomes randomized controlled trial assessed the effectiveness of various spinal cord stimulation (SCS) modalities for chronic pain. A) short distance hyperpolarization When activated, shortens C. Found in the brain and spinal cord. Just what does pass from the neuron to the muscle cells and, Which neuroglial cell type in the CNS is associated with many functions including support for neurons, forming a blood-brain barrier, secretion of neurotrophic factors, and uptake of K+ and neurotransmitters?
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