which ofthe following is correct? a. Neurons communicate with other neurons in the central nervous system. Polygenic inheritance is the inheritance of traits that are influenced by multiple genes. Which of the following statements is true? d) There, In order for skeletal muscle cells to contract, they must be excited by motor neurons. Transcribed image text: Which of the following is not a characteristic of neurons? A toxin that destroyed the presynaptic terminal on an axon would likely: 7. Sensory receptors for touch (and pressure) respond to physical deformation of the receptors, resulting in the opening of specific mechanically gated ion channels. 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. threshold Voltage-gated Na+ The following is a list of characteristics of neurons: - Neurons are cells that specialized in the transmission of electrical impulses. d. the person has a history of drug abuse. B) analyzes sensory information, stores information, makes decisions b. auditory information. 51. 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. The patient has a polymorphism that slow metabolism of a drug. b. Microglial cells Tight junctions along blood vessels in the brain are formed by: The Macklis Lab is directed toward (1) understanding molecular controls and mechanisms over neuron sub-type development, diversity, axon guidance-circuit formation, and degeneration in the cerebral cortex, and (2) applying developmental controls toward brain and spinal cord regeneration and directed differentiation for in vitro therapeutic and mechanistic screening. Answer: Option D is correct Explanation: Neurons generally do not e. Glial scars may impair recovery from brain injury because: 56. The interior is ________. We studied the biochemical characteristics of dopaminergic (DA) neurons generated from induced pluripotent stem cells (iPSCs) from a PD . c. epigenetic stimulus. B) norepinephrine Which functional classification of neurons is the most numerous? A) ependymal cells a) Myelinated axons transmit nerve impulses via continuous conduction. Melatonin is released from the: depolarized to b. it provides a medium for nutrients to cells. What are the properties of myelinated axons which makes them ideal for long-distance motor control of skeletal muscle? The pons is activated when someone startles. b. Neurotrophins A. Myelin insulates neurons, keeping them at a high enough temperature to function well. Identify the neuron type described: Two functional neuron types that are structurally multipolar neurons. b. the structure is closer to the midline of the brain. Which of the following is not characteristic of neurons? When activated, shortens C. Found in the brain and spinal cord. A) acetycholine Collections of nerve cell bodies outside the central nervous system are called ________. 11. 41. They may live as long as the organism they are part of, and they have an exceptionally high metabolic rate, requiring large amounts of glucose and oxygen to produce ATP. Which of the following describes the nervous system integrative function? B) afferent neuron An inhibitory postsynaptic potential (IPSP) is associated with ________. B) are found on "pathfinder" neurons This area is also known as the soma or perikaryon. a. Answer (1 of 3): So a neuron is a specialized cell in the brain with certain characteristics. Identify the neuron type described: Two neuron types whose cell bodies are in the spinal cord (CNS). b. Microglial cells B) innervation of cardiac muscle 1 and Klioutchnikov et al. Transcription factors increase or decrease gene transcription. As you start working out, you notice that your heart rate and breathing rate start to increase. Visual disturbances, paralysis, and weakness, Elliot Aronson, Robin M. Akert, Samuel R. Sommers, Timothy D. Wilson, Elliot Aronson, Robin M. Akert, Timothy D. Wilson. David N. Shier, Jackie L. Butler, Ricki Lewis, Anatomy and Physiology: An Integrative Approach, Michael McKinley, Theresa Bidle, Valerie O'Loughlin, LELCB 1B (28/1) - Collocation review (gap fil. c. The patient has a low level of transcription factors. Briefly describe 6 effects this division has on the body. a. anchor neurons to blood vessels. b) The preganglionic neuron (sometimes called the ganglionic neuron), is the second motor neuron. a. increase the activity of postganglionic sympathetic neurons. b. Reactive astrocytes Methods: Participants were prospectively enrolled . C) microglia The synaptic cleft b. D) stimulate the production of acetylcholine, Which of the following is not a function of the autonomic nervous system? b. cholinesterase. Different types of neurons include sensory, motor, and interneurons, as well as structurally-based neurons, which include unipolar, multipolar, bipolar, and pseudo-unipolar neurons. D) Ions always move from an area of higher concentration to an area of lower concentration, A second nerve impulse cannot be generated until ________. 2. b) Myelin prevents conduction of electricity from the axon hillock to the axon terminal. d. at the axon terminal. c. Neuromuscular junction (c) They have an exceptionally high metabolic rate. b. transcription factors. The point where a motor neuron meets a muscle fiber is called the: What are the advantages and disadvantages of Europe's communications systems? True or False, If bacteria invaded the CNS tissue, microglia would migrate to the area to engulf and destroy them. Which of the following describes the excitatory postsynaptic potential? Reflexes are rapid, automatic responses to stimuli. a. astrocytes play a role in neurotransmission. Potentials that are short-lived, local changes in membrane potential that can be either depolarized or hyperpolarized are called ________ potentials. 74. Which of the following is not characteristic of neurons? c. midbrain. Nerve cell adhesion molecules (N-CAMs) ________. Describe which neurons are considered cholinergic in both the parasympathetic and sympathetic divisions. c. Oligodendrocytes The correct answer is (d) All of these are characteristic of neurons. In epilepsy research, there is a growing interest in the role of the piriform cortex (PC) in the development and maintenance of limbic kindling and other types of limbic . C) brain and spinal cord Just from looking down a microscope, however, it becomes very clear that not all neurons are the same. D) control the chemical environment around neurons b. cerebellum. The landscaping business for the area totaled about$1,340,000 for the year. O They have extreme longevity. A. The p.N370S substitution causes a violation of the enzyme conformation, which affects its stability in the cell. 53. Use Equation v=v0+atv=v_0+a tv=v0+at to show that the time corresponding to the velocity found in part (a) is t=v0v022ax0at=\frac{-v_0 \pm \sqrt{v_0^2-2 a x_0}}{a}t=av0v022ax0. 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. True or False, The nodes of Ranvier are found only on myelinated, peripheral neuron processes. ________ is a disease that gradually destroys the myelin sheaths of neurons in the CNS, particularly in young adults. a. Neurogenetics copyright 2003-2023 Homework.Study.com. a. Dendrite b. the sympathetic division of the autonomic nervous system. B) brain, spinal cord, and peripheral nerves B. Skeletal muscles store nutrient reserves. A chemical messenger that does not directly cause ESPSs or IPSPs but does affect the strength of synaptic transmission is a ________. (a) hardened cells and neurons (b) neurons and supporting cells (c) chondrocytes and neurons (d) neuronocytes and smooth muscle cells. d. Parkinson's disease. It is impossible in a single chapter to delineate comprehensively the extensive structural, topographical and functional variation achieved by this cell type. a. messenger ribonucleic acid. B) Specific potassium gates will open. ANSWER : The neurons are included in the somatic body cells but are. D) moves membrane potential away from threshold. (a) Fluorescent lightbulbs contain a small amount of mercury, giving a mercury vapor pressure of around 1*10^(-5) atm. Myelination of the nerve fibers in the central nervous system is the job of the oligodendrocyte, Efferent nerve fibers may be described as motor nerve fibers. The function of neurons is to communicate information from one part of the body to other parts. Which of the following lists the components found in a synapse? D) glial cell, Saltatory conduction is made possible by ________. d . b. Constricted airways 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. b) Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons. c. Motor efferent neurons possess long dendrites and short axons. ce3z/(4zi)3dz_ce^{3z}/(4z-i)^3dz Their basic function is to receive and transmit information through electrical impulses. Which of the following is not a characteristic of ion channels? Which of the following is not true about the cerebral cortex? Classify Neurons by their Function. e. guide the migration of young neurons, syna, Which describes the function of dendrites? E) guide the migration of young neurons, synapse formation, and helping to determine capillary permeability. d. gyri. High metabolic rate. How can potentially poisonous gases like NO and CO be used by the body? D) absolute refractory period. How can a single axon respond to several different kinds of events? WHICH OF THE FOLLOWING IS TRUE REGARDING UMNS ? B) synapse spindle fibres to divide the cell. a. Pupil dilation e. neurons that innervate smooth muscle are under involuntary control. b. Neurons would be unable to form the blood-brain barrier. Strong stimuli cause the amplitude of action potentials generated to increase. a. inhibit the production of neurotrophins. Which of the following is NOT characteristic of the sympathetic division of the autonomic nervous system? c. neurons. What is the role of calcium in synaptic activity? b. Medulla Neurotransmitter binds to receptors on the postsynaptic cell membrane and allows ions to diffuse across the membrane. Give a valid explanation of why this could occur. A drug that caused someone to make a reckless decision might be affecting the: (organalle) inside them, which is necessary to formation of mitotic. inability to divide by mitosis long cell life span (longevity) high aerobic metabolic rate ability to survive in anaerobic (Uithout oxygen) conditions. What are the neuron functions for the peripheral nervous system? True or False, Which of the following is not a function of astrocytes? These K+ ions decrease the positive ion concentration momentarily below the normal -70mV and thus hyperpolarize the cell. Citation 17 - Citation 21 However, the effect of CH on axonal plasticity within the white matter following ischemic stroke is not known in detail. It impacts your spinal cord and the nerves that transmit and receive messages between your brain and the rest of your body. the somatic nervous system. c. that a person is genetically male. The axon hillock is located: Which of the following is not a special characteristic of neurons? What is a credit line? Characteristics and function of neurons. View the full answer. What functional class of neuron carries impulses away from the CNS to muscles or glands? View the full answer. D) size of action potentials, Bipolar neurons are commonly ________. d. The person may have motor tremor. b. oligodendrocytes. - Neurons have one or more long, slender projections called dendrites, which receive electrical impulses from other neurons. specific or different from others in some way that they do not have. Select all that apply. C) ganglia b. Sensory afferent neurons possess long dendrites and short axons. High metabolic rate C. Require continuous supplies of glucose and oxygen D. Extreme longevity E. No exceptions; all of these are characteristic of neurons. d. the structure is anterior to the area. A) the impulse would move to the axon terminal only. Preganglionic neurons tend to be long, with the ganglion located in or near the effector target tissue (s). Some neuroglia remove debris and foreign material from the nervous system. D) gamma aminobutyric acid, Which of the following describes the nervous system integrative function? Motor. 77. Neurons are found across the body but are most numerous in the brain. It is composed of densely packed cells. If the electrode is removed, a potential of zero is recorded again. Damage to the hippocampus would likely cause impairments to long-term memory Name two amino acid neurotransmitters, two catecholamines, and two peptides. Which of the following is true about the movement of ions across excitable living membranes? Oligodendrocytes form: They control, in this way, from the movement of an arm, thoughts and even feelings through electrical signals that are called nerve impulses. Identify the neuron type described: A functional neuron type most prevalent in the CNS. alternations to DNA sequences? The interior is ________. Neurons and muscle cells are considered excitable tissues because they do what? The midbrain contains the: a. Astrocytes Which of the following is not found in the limbic 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.
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