(d) All of these are characteristic of neurons. Which of the following is false or incorrect? D) ligand-gated channel, An impulse from one nerve cell is communicated to another nerve cell via the ________. a. polymorphisms. b. inhibit axon growth. 1. 41. For skeletal muscle cells to contract, they must be excited by motor neurons. formation. When one or more presynaptic neurons fire in rapid order it produces a much greater depolarization of the postsynaptic membrane than would result from a single EPSP; this event is called ________ summation. 36. B) motor fibers that conduct nerve impulses from the CNS to skeletal muscles 2. A. Local anesthetics block voltage-gated Na+ channels, but they do not block mechanically gated ion channels. D) A small . To which part of the spinal cord is sensory information sent? Define neurotransmitter. a. the hippocampus. b. Sensory afferent neurons possess long dendrites and short axons. The nucleus accumbens facilitates fear and aggression. certain disorder would most likely investigate which of the following? (a) Cell body (b) Dendrites (c) Axon (d) All of the above are structural features of a neuron. a. Alzheimer's disease. Large-diameter nerve fibers conduct impulses much faster than small-diameter fibers. A) Group C fibers are not capable of saltatory conduction. 1. Response characteristics of subthalamic neurons to the stimulation of b) Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons. The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to take place. b. cause inattention. The part of a neuron that conducts impulses away from its cell body is called a(n) ________. Motor neurons transmit the nerve impulses from CNS to effectors (muscles and glands). 25 26 Which of the following is not a special characteristic of neurons Which of the following is not a structural feature of a neuron? b. autosomal chromosomes. 13. A thirestold potential must be excecded or reached. Motor afferent neurons possess long dendrites and short axons. 14. C) They have an exceptionally high metabolic rate. Which of the following is not true of graded potentials? Sensory Neurons Motor Neurons Inter-Neurons A) positively charged and contains less sodium 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. Solved Which of the following is NOT characteristic of the - Chegg A) senses changes in the environment a. medulla. a. tegmentum. c. Neuromuscular junction 5. Describe the structure of neurons 2. a) anchor neurons to blood vessels b) control the chemical environment around neurons c) Provide the defense for the CNS d) support and brace neurons e) guide the migration of young neurons, synapse. B) The release of neurotransmitter molecules gives cells the property of being electrically coupled. The person would have impaired decision making while the drug's effects were active. B) amplify or enhance the effect of ACh c. Ganglia c. Myelination d. medulla. 26. Which cranial nerve receives sensory information from the heart, liver, and intestines? Relative to the prefrontal cortex, the neuron would be called a(n): C) found in ganglia likely acting upon? Longevity 2. Imagine a neuron that has several hundred axonal knobs impinging on it. Touch stimulation of this sensory receptor will open the mechanically gated ion channels, but action potentials are still not initiated because propagation of an action potential requires the opening of voltage-gated Na+ channels. B) brain, spinal cord, and peripheral nerves The hypothalamus is located in the: Estimate the number of moles of Ar in a typical lightbulb. Which of the following is not characteristic of neurons? C) Group B fibers are highly myelinated and have the highest conduction velocities. adjacent axon segment. Treatment of pain with local anesthetics leads to an unfavorable decrease in general sensory acuity due to their indiscriminate block of both pain sensing . a. ribosomes. The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to take place. your answer. 10. Which of the following is a factor that determines the rate of impulse propagation, or conduction velocity, along an axon? D) tracts, The term central nervous system refers to the ________. B) amplitude of various sizes a. basal ganglia Oligodendrocytes form: b. Pons d. Hypothalamus, 37. d. Neurogenetics. Choose the correct order of these events below. Which of the following is NOT characteristic of nervous tissue in the brain a. Solved Question 35 1.5 pts Which of the following is not a - Chegg Neurons can function optimally for over 100 years. Immediately after an action potential has peaked, which cellular gates open? 42. 1. Which of the following are the cells of nervous tissue? B) They can form on receptor endings. c. Oligodendrocytes Which of the following is not a characteristic of neurons? Correct option is C) Sensory neurons receive sensory inputs from the internal and external environment and transmit it to CNS (brain and spinal cord) for processing. Which nerve cells carry impulses from the brain to the muscles? a. a. C. They are mitotic. a. neuromuscular junction. How can a single axon respond to several different kinds of events? B) afferent neuron A) innervation of smooth muscle of the digestive tract B) innervation of cardiac muscle C) innervation of skeletal muscle D . All of the following describe the functions of astrocytes except: Hint. Saltatory conduction is made possible by ________. What is the long outgrowth of a neuron along which electrical impulses are transmitted? a. the person had neurons that did not form correctly during neural development. The membrane potential of the postsynaptic membrane changes. Overview of neuron structure and function - Khan Academy ce3z/(4zi)3dz_ce^{3z}/(4z-i)^3dz c. they form an insulating material around axons. B) innervation of cardiac muscle Which of the following plays an integral role in saltatory conduction? c. Cerebellum They conduct impulses. a. Oligodendrocytes The part of a neuron that conducts impulses away from its cell body is called a(n) ________. 46. c. Hippocampus Why? The nervous system most dominant while relaxing is the: (c) They have an exceptionally high metabolic rate. spindle fibres to divide the cell. d. Nuclei. a. According to the humidity characteristics of PEMFC, Vinu et al. Which of the following portions of the neuron transmits neurotransmitters? A substance that inhibits the activity of the cerebellum would be expected to: A) nuclei Saltatory propagation occurs in _________ axons, in which action potentials _________. c. pons. c. gamma aminobutyric. C) are crucial in the production of neurotransmitters The patient has a polymorphism that slow metabolism of a drug. In the case of nerve . a. Trigeminal nerve b. hypothalamus nervous system? (organalle) inside them, which is necessary to formation of mitotic. GBA variants increase the risk of Parkinson's disease (PD) by 10 times. Why does a hyperpolarization phase generally follow a repolarization phase in an action potential? This protective role is important because cells of the immune system are denied access to the CNS. b) The preganglionic neuron (sometimes called the ganglionic neuron), is the second motor neuron. To find the time when this object reaches the position x=0x=0x=0 we can use the quadratic formula, or apply the following two-step procedure: (a) Use Equation v2=v02+2a(xx0)=v02+2axv^2=v_0^2+2 a\left(x-x_0\right)=v_0^2+2 a \Delta xv2=v02+2a(xx0)=v02+2ax to show that the velocity of the object when it reaches x=0x=0x=0 is given by v=v022ax0v=\pm \sqrt{v_0^2-2 a x_0}v=v022ax0. Which of the following is correct? This may account for the cycles of relapse and remission in different patients. Deep brain imaging on the move | Nature Methods Growth of spiral ganglion neurons induced by graphene oxide/oxidized The latter from the brain to the spinal cord. Specialized cells in the nervous system that control behavior, senses, and movement are. Answer: Option D is correct Explanation: Neurons generally do not e . 79. A) Sensory neuron B) Motor neuron C) Interneuron D) All of the above. In which area of the neuron is an action potential initially generated? D) erratic transmission of nerve impulses, Which of the following is not a chemical class of neurotransmitters? C. Afferent. b. Neurons would be unable to form the blood-brain barrier. C) guide the migration of young neurons, synapse formation, and helping to determine capillary permeability 39. b. reduce the activity of postganglionic sympathetic neurons. What is the role of acetylcholinesterase? 23 We detected neurons and extracted temporal components from the calcium imaging data (Figure 2 C) with the CNMF-E toolbox. c. epigenetic stimulus. c. M2 microglial cells The GBA gene encodes the lysosomal enzyme glucocerebrosidase (GCase). Spiral ganglion neurons (SGNs) play a vital role in conveying complex information from hair cells to the brainstem (Shrestha et al., 2018).As the injury or degeneration of SGNs is particularly devastating to hearing function, thus the repair of SGNs is of great importance in hearing-related biomedical fields (Petitpre et al., 2018; Wei et al., 2021). b. Broca's Aphasia. What are the basic divisions of the peripheral nervous system? c. enhance the activity of reactive astrocytes. b. auditory information. Which of the following is NOT a function or characteristic of neurons? The cells communicate by sending signals between different parts of the brain, and the neurons can interface with gray matter nuclei. Central Nervous System (b) Ordinary tungsten incandescent lightbulbs used in households are filled with argon gas at about 0.5 atm to retard the sublimation of the tungsten filament. An impulse from one nerve cell is communicated to another nerve cell via the ________. The following is a list of characteristics of neurons: - Neurons are cells that specialized in the transmission of electrical impulses. D) are crucial for the development of neural connections, An inhibitory postsynaptic potential (IPSP) is associated with ________. The greater the density of spines along dendrites, the greater a neuron's: 5. The concentration of __ is higher outside than inside the cell. a. Multi-polar neurons b. Bipolar neurons c. Uni-polar neurons. a. Epigenetic markers How can potentially poisonous gases like NO and CO be used by the body? Briefly describe 6 effects this division has on the body. As you start working out, you notice that your heart rate and breathing rate start to increase. Describe the types of neurons, their structure and their function. Which of the following is not characteristic of neurons? B) type of stimulus receptor Full article: A Novel Cerebroprotein Hydrolysate, CH1, Ameliorates The hills on the surface of the brain are referred to as: The plasma membrane of the neuron is semipermeable, being highly permeable to K + and slightly permeable to Cl and Na +.In the extracellular fluid, electroneutrality is preserved by a balance between a high concentration of Na + on the one hand and a high concentration of Cl , as . a. reference memory. 12. b. astrocytes respond to injury. What effect might a disease that destroyed oligodendrocytes have on neuronal function? In terms of function, scientists classify neurons into three broad types: sensory . Group C fibers are not capable of saltatory conduction. c. Epigenetics b. forebrain. b. oligodendrocytes. Which of the following are afferent neurons, relative to the central nervous system? Study with Quizlet and memorize flashcards containing terms like Neuroglia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are _____., Which of the following is not a function of the autonomic nervous system? A) acetylcholine 10. A drug that inhibited the reticular activating system would most likely cause: a. Alzheimer's disease (AD) is a progressive neurodegenerative disorder with an increasing worldwide prevalence. D) They are mitotic. C) microglia B) are found on "pathfinder" neurons D) astrocytes, What does the central nervous system use to determine the strength of a stimulus? Tell why you think so. Which of the following is not characteristic of neurons? B) negatively charged and contains less sodium Chapter 11 Test Questions Flashcards | Quizlet What is the functional neuron type that is the most prevalent in the CNS? Preganglionic neurons are located in the brain stem and sacral segments of the spinal cord. 2 introduce new . b. basal ganglia synapses. d. represent a general decline of autonomic nervous system activity. Growing numbers of sodium channels appear spontaneously in the demyelinated fibers so that conduction resumes, even if slower. b. Sensory afferent neurons possess long dendrites and short axons. 1 and Klioutchnikov et al. Solved Which of the following is NOT characteristic of | Chegg.com Melatonin is released from the: Which type of microglial cells promote inflammation? A) mechanically gated channel Citation 17 - Citation 21 However, the effect of CH on axonal plasticity within the white matter following ischemic stroke is not known in detail. b. Epigenetics Specifically, combination therapy (simultaneous use of customized sub-perception field and paresthesia-based SCS) versus monotherapy (paresthesia-based SCS) was evaluated. a. Mitochondria in a neuron would no longer function. d. hippocampus. Do not divide - (neural stem cells are an exception) 3. b. Gliosis sure to include the influence of German philosopher Karl Marx in Nervous system - The neuronal membrane | Britannica An anesthetic protocol allowing electrophysiological singleunit recordings from inhibitory, presumably GABAergic PC interneurons in vivo is developed and may be useful for evaluation of PC neurons in kindled rats. b. procedural memory. A substance that directly activates gene transcription is likely acting as a: A Pyrex container is completely filled with 275cm3275 \mathrm{~cm}^3275cm3 of mercury at 10.0C10.0{\degree} \mathrm{C}10.0C. D) Schwann cells, Schwann cells are functionally similar to ________. Which division of your nervous system is generating this response? D) control the chemical environment around neurons A neuron was found to originate in the hippocampus and terminate in the prefrontal cortex. In two words, the functions of neuron tissue that we can specify is that the integration, and communication are the main function of this specialized tissue. Which of the following is not characteristic of neurons? Which of the following is expected to occur first if the membrane potential decrease shown in the graph on the left were to reach the threshold value indicated at ~ -55 mV? These cells have a star-like shape and a central body that contains the . d. prefrontal cortex. The substance released at axon terminals to propagate a nervous impulse is called a(n) ________. Which of the following is NOT a function or characteristic of neurons? C. Myelin traps sodium ions in the ax. a. sodium b. chloride c. calcium d. potassium, A neuron that has as its primary function the job of connecting other neurons is call a(n) _____. A) An excitatory postsynaptic potential occurs if the excitatory effect is greater than the inhibitory effect but less than threshold. a. b. thalamus. Which of the following best describes the function of astrocytes? 12. The p.N370S substitution causes a violation of the enzyme conformation, which affects its stability in the cell. In this issue, Zhao et al. ________ is a disease that gradually destroys the myelin sheaths of neurons in the CNS, particularly in young adults. d. touch information. Question. The person would have impaired movement while the drug's effects were active. Reflexes are rapid, automatic responses to stimuli. Characteristics of neurons Flashcards | Quizlet d. ventral root. c. genes. b. M3 c. decrease anxiety. Which of the following statements regarding nervous tissue is not true? a. on dendrites. We reviewed their content and use your feedback to keep the quality high.
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