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Transcription factors increase or decrease gene transcription. The midbrain contains the: d. represent a general decline of autonomic nervous system activity. c. The cerebral cortex includes the cerebellum. The human body is made of about 100 billion neurons. View the full answer. 1. What does the central nervous system use to determine the strength of a stimulus? C) destroy ACh a brief period after its release by the axon endings a. Multi-polar neurons b. Bipolar neurons c. Uni-polar neurons. 11. b. Reactive astrocytes These cells have a star-like shape and a central body that contains the . True or False, Axon diameter and degree of myelination determine nerve impulse conduction velocity. Which of the following statements regarding nervous tissue is not true? What are the cells that transmit nerve impulses between parts of the nervous system? D) Ions always move from an area of higher concentration to an area of lower concentration, A second nerve impulse cannot be generated until ________. The parasympathetic nervous system prepares the body for rigorous activity. C) leakage channel a. the person had neurons that did not form correctly during neural development. a. periaqueductal gray. A neuron was found to originate in the hippocampus and terminate in the prefrontal cortex. the membrane potential has been reestablished. 100% (3 ratings) Which of the following is NOT a characteristic of neurons? d. pineal gland. Characteristics of neurons Flashcards | Quizlet D) stimulate the production of acetylcholine, Which of the following is not a function of the autonomic nervous system? It is concluded that motor and sensory axons have a different substrate preference at early postnatal stages but this difference is lost in the adult. C. They are mitotic. Module 5 Enhancement Question Cabangil 1J-1 FF A) An inhibitory postsynaptic potential occurs if the inhibitory effect is greater than the excitatory, causing hyperpolarization of the membrane. c. hippocampus. a. Schwann cells b. satellite cells c. microglia d. astrocytes e. oligodendrocytes f. ependymal cells. Explain why some forms of MS are characterized by periods of remission and exacerbation. b. Sensory afferent neurons possess long dendrites and short axons. Identify the neuron type described: Two functional neuron types that are structurally multipolar neurons. d. cingulate cortex. The cell bodies of the upper motor neurons are located in the spinal cord B. A) They are short-lived. Damage to the ________________ could cause changes to one's motivation to eat, such as c. they form an insulating material around axons. Differentiate the actions and chemical messengers in the endocrine system from those in the nervous system. Solved Question 35 1.5 pts Which of the following is not a - Chegg c. Epigenetics d. Vagus nerve. Reflexes are rapid, automatic responses to stimuli. d. Sensory efferent neurons po. B) provide the defense for the CNS What symptoms would a nurse focus on in his or her care of a patient with multiple sclerosis? c. ventricles. What is the function of upper motor neurons? A drug that increases appetite would likely affect: March 17, 2022. destroy ACh a brief period after its release by the axon endings. Which of the following describes the ANS? Preganglionic neurons are located in the brain stem and sacral segments of the spinal cord. What is an example of a presynaptic cell? Which of the following best describes the function of astrocytes? Which of the following is NOT characteristic of nervous tissue in the 3. ce3z/(4zi)3dz_ce^{3z}/(4z-i)^3dz a. polymorphisms. 15. 74. c. olfactory information. What is the role of calcium in synaptic activity? Unipolar,Bipolar,Multipolar. Which nervous system was the drug most b. Interneurons. 34. likely to occur? Nanoscale integrated circuit technologies have become popular for designing and implementing biologically inspired pulse-based brain systems [1].These advanced Nanoscale devices are implemented in specific defined models of neuronal recording [[2], [3], [4]].Especiallyto replace a dead neuron system with an artificial neuron system to activate the paralyzed body parts. a. Microglial cell activation . c. the structure is further out to the side of the brain. a. If a physician identified her patient as a low drug metabolizer, which of the following is most Which nerve cells carry impulses from the brain to the muscles? _____________ is a process for responding to brain injury. The preclinical phase of AD, which can last 10 to 20 years, is characterized by the gradual accumulation of -amyloid and tau aggregates in the brain, together with neuroinflammation and synaptic alterations ().Several lines of evidence indicate that -amyloid deposition precedes . Which neurons belong to the efferent pathway? b. efferent neuron. In this study we evaluated if motor and sensory neurites have a substrate preference for laminin and . Solved Which of the following is NOT characteristic of | Chegg.com c. Oligodendrocytes B) norepinephrine d. reduce cortical arousal. Diminished activation of postganglionic sympathetic neurons muscles throughout the body? 1. Which of the following is NOT a type of circuit? The majority of these axonal knobs are shown to be "firing." The former make connections from the spinal cord to the muscles. 32. b. cerebrospinal fluid. We studied the biochemical characteristics of dopaminergic (DA) neurons generated from induced pluripotent stem cells (iPSCs) from a PD . 12. a. cerebral aqueduct. b. thalamus. This area is also known as the soma or perikaryon. b. Constricted airways Ganglia are on or near the target organ. Which cell causes endothelial cells to fit closely together? Which of the following are true about 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. b. cholinesterase. A) mechanically gated channel d. Neurons. a) norepinephrine b) cholinesterase c) gamma aminobutyric acid d) acetylcholine. b. glial cells. a. sensory neuron b. interneuron c. motor neuron d. gland e. muscle. B) They have extreme longevity. Which type of microglial cells promote inflammation? Inflammatory Cytokines Associated with Multiple Sclerosis Directly 9. a. A thirestold potential must be excecded or reached. They are electrically excitable cells which generate action potentials. a. Oligodendrocytes Diminished release of acetylcholine from preganglionic sympathetic neurons would: C) biogenic amine Name the following: Nervous tissue cells that regulate the chemical environment of neurons. c. it increases flow to highly active neurons. 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. While taking notes in class, a student had keep in mind what the professor had just stated in c. M2 microglial cells d. RNA. What do neurons synapse with? The significance of the myelin sheath surrounding axons of werve neurons is that ia is B. composed of synaptio vesieles, which corapletely botate the nouron due w ins whter dianecer. taking the substance. a. interneuron. B. A) sodium Which of the following membrane regions would have significant numbers of voltage-gated ion channels? Is the information in this quote about afferent of efferent? C. Myelin traps sodium ions in the ax. Which of the following is not characteristic of neurons? (a) They Specific instructions that encode for traits are called: Which of the following is NOT a characteristic of neurons? A) the impulse would move to the axon terminal only a. astrocytes play a role in neurotransmission. The oligodendrocytes can myelinate several axons, Cell bodies of sensory neurons may be located in ganglia lying outside the central nervous system, During depolarization, the inside of the neuron's membrane becomes less negative. c. The patient has a low level of transcription factors. b. autosomal chromosomes. Experts are tested by Chegg as specialists in their subject area. D) They can be called postsynaptic potentials. Collections of nerve cell bodies in the peripheral nervous system are called ________. Although neurologic recovery is complete, amnesia for the event persists. Unipolar neurons have axons structurally divided into peripheral and central processes, Neurons in the CNS are organized into functional groups, If bacteria invaded the CNS tissue, microglia would migrate to the area to engulf and destroy them, The nodes of Ranvier are found only on myelinated, peripheral neuron processes. As you start working out, you notice that your heart rate and breathing rate start to increase. D) spinal cord and spinal nerves, The substance released at axon terminals to propagate a nervous impulse is called a(n) ________. Site of mRNA translation for proteins of the axolemma c. Axon fibres are covered by a white sheath called myelin. 26. In myelinated axons the voltage-regulated sodium channels are concentrated at the nodes of Ranvier. capacity of divide via mitosis due to absence of centrosomes. C) Sodium gates will open first, then close as potassium gates open. ________ is a disease that gradually destroys the myelin sheaths of neurons in the CNS, particularly in young adults. Extrapyramidal side effects produced by antipsychotic drugs are similar to the symptoms of: 64. a. parietal lobe. A) astrocytes Cells may have long extensions. b. control the chemical environment around neurons. d. Interneurons, 16. B) They have extreme longevity. (organalle) inside them, which is necessary to formation of mitotic. 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. D) voltage regulated repolarization, Neuroglia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are ________. A. they produce neurotransmitters B. they lack neurotransmitter receptors C. they receive communication from other neurons D. they slow down the action potential. b. procedural memory. b. Somatics Neurons are a specific type of nervous system cell that is able to generate signals and transmit them to other neurons or target end-cells. Neurons are located both in the CNS and on the periphery. c. a ventricle. c. reduced oxygen delivery to cells. c. basal ganglia. Response characteristics of subthalamic neurons to the stimulation of In your opinion, is "A Christmas Memory" merely a vivid portrayal of a memory, or does it also convey a theme, or message? These include nerve cells (or neurons) and glial cells (or glia ). They have long fibers from CNS to ganglion. 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. d. the hypothalamus. A. thow ion selectivity C. are gated A. c. gamma aminobutyric. D) potassium, Nerve cell adhesion molecules (N-CAMs) ________. copyright 2003-2023 Homework.Study.com. A disease that destroyed astrocytes would be expected to: Which of the following mechanisms is most significant in returning Na+ and K+ concentrations to resting ionic conditions (from point D to point E)? . B) chloride Crosstalk between m6A mRNAs and m6A circRNAs and the time-specific c. Activation of preganglionic parasympathetic neurons C) They have an exceptionally high metabolic rate. b. auditory information. b. Ventral root glia b.) The characteristics that vary on a continuum among people, such as height, skin color, or intelligence, are most likely determined by polygenic inheritance. She asks the nurse,"Why did this have to happen to me again? A) innervation of smooth muscle of the digestive tract B) innervation of cardiac muscle C) innervation of skeletal muscle D . Question. a. increase the activity of reactive astrocytes. Solved Which of the following is not a characteristic of | Chegg.com This results in increased speed of impulse propagation. Which of the following is NOT characteristic of the sympathetic The interior is ________. a. that a person will have a polymorphism. Which of the following is not characteristic of neurons? There are two well-characterized cannabinoid receptors (CB1R and CB2R and other candidates): the central nervous system (CNS) enriched CB1R and peripheral tissue enriched CB2R with a wide dynamic range of expression levels in different cell types of human tissues. Which of the following is correct? d. spines along dendrites. 2. d. acetylcholine. b. Sensory afferent neurons possess long dendrites and short axons. A) An excitatory postsynaptic potential occurs if the excitatory effect is greater than the inhibitory effect but less than threshold. Classify neurons according to their structure. Which division of your nervous system is generating this response? Which of the following is NOT characteristic of nervous tissue in the brain a. C. Skeletal muscles are responsible for the pumping action of the heart. The nervous system most dominant while relaxing is the: Why does injection of a local anesthetic into a finger still cause a loss of the sensation of touch from the finger? a. Amygdala What are the functional classifications of neurons? 69. (c) They have an exceptionally high metabolic rate. Nerve cell adhesion molecules (N-CAMs) ________. 31) Neurons may be classified according to several characteristics. What are the different types of neurons in the ANS and where are they located? adjacent axon segment. Study with Quizlet and memorize flashcards containing terms like 1. c) Neurons are the most abundant type of cell in nervous tissue. d. Autonomic Nervous System, 21. D. Involved in fast-acting body control. 66. Some ions are prevented from moving down their concentration gradients by ATP-driven pumps. Estimate the mass of Hg vapor present in the type of long, thin fluorescent tubes used in offices. However, the electrical impulse cannot pass directly from a nerve cell to the skeletal muscle cells to excite them. A neuron that has as its primary function the job of connecting other neurons is called a(n) ________. Which of the following portions of the neuron transmits neurotransmitters? Our experts can answer your tough homework and study questions. C) Sodium gates in the membrane can open in response to electrical potential changes. IJMS | Free Full-Text | Low Basal CB2R in Dopamine Neurons and - MDPI 3. The correct answer is (d) All of these are characteristic of neurons. b. thalamus. When a gene is activated, a specific DNA segment is unraveled and transcribed onto: b. motor fibers that conduct nerve impulses from CNS to skeletal muscles. Characteristics of the Neuron. A. neuronal fibers; axons B. axons; dendrites C. dendr. a. midbrain. Why? It is impossible in a single chapter to delineate comprehensively the extensive structural, topographical and functional variation achieved by this cell type. What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called? When a sensory neuron is excited by some form of energy, the resulting graded potential is called a(n) ________. The person would have impaired decision making while the drug's effects were active. B) Schwann cells A) acetylcholine Identify the cell type below that assists the function of neurons and has a supportive role within the nervous system? It is shown that localized co-injection of lidocaine derivative QX-314 and receptor agonists is able to block cold sensitivity in mice in a targeted way, with implications for treating cold pain associated with injury and disease. What is the long outgrowth of a neuron along which electrical impulses are transmitted? 45. 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. norepinephrine. Which neurons reside only within the CNS? In terms of function, scientists classify neurons into three broad types: sensory . Which of the following types of glial cells monitors the health of neurons, and can transform into a special type of macrophage to protect endangered neurons? In general, neurons cannot be replaced if destroyed. C) oligodendrocytes (a) Fluorescent lightbulbs contain a small amount of mercury, giving a mercury vapor pressure of around 1*10^(-5) atm. c. Transcription factors Which cranial nerve receives sensory information from the heart, liver, and intestines? 71. (a) hardened cells and neurons (b) neurons and supporting cells (c) chondrocytes and neurons (d) neuronocytes and smooth muscle cells. These gases are neurotransmitters that act indirectly. b. Neurotransmitters a. Doral root Events that occur during synaptic activity are listed here, but they are arranged in an incorrect order. Has component cells designed for conductivity b. They secrete acetylcholine. Describe annual cleanupthat isfrequently present in these agreements. What is the role of microglial cells and why are they so important in the CNS? b. thalamus. a. Preganglionic neurons tend to be long, with the ganglion located in or near the effector target tissue(s). mastering a&p- chapter 11 (part of 12) EXAM 5, Anatomy & Physiology Test 2: Tissues & Integu, UTA Biol 2458- A&P 2 Aranda Test review 1, Mastering Homework Questions and Notes: Actio, The Language of Composition: Reading, Writing, Rhetoric, Lawrence Scanlon, Renee H. Shea, Robin Dissin Aufses, Edge Reading, Writing and Language: Level C, David W. Moore, Deborah Short, Michael W. Smith. d. The blood-brain barrier, 17. Which functional classification of neurons is the most numerous? Upper motor neurons are classified according to the pathways they travel in C. The Babinski response is not characteristic of paralysis from UMN lesions 80. D) The synaptic cleft prevents an impulse from being transmitted directly from one neuron to another. motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands. Motor has two divisions: the somatic and autonomic. Which of the following would be most likely to increase heart rate? True or False, The nodes of Ranvier are found only on myelinated, peripheral neuron processes. d. gyri. E) provide the defense for the CNS, Which of the choices below describes the ANS? The hills on the surface of the brain are referred to as: It also affects your cerebellum, the part of your brain that controls movement and balance. Which of the following conducts impulses to an effector? [PDF] Selective cold pain inhibition by targeted block of TRPM8