which of the following is not characteristic of neurons? which of the following is not characteristic of neurons?

As you start working out, you notice that your heart rate and breathing rate start to increase. 2. C ) brain and spinal cord. A. A . d. Neurons. E) guide the migration of young neurons, synapse formation, and helping to determine capillary permeability. (d) All of these are characteristic of neurons. 53. a. tegmentum. What mechanism is responsible for axonal transport? That part of the nervous system that is voluntary and conducts impulses from the CNS to the skeletal muscles is the ________ nervous system. C. Skeletal muscles are responsible for the pumping action of the heart. C) They are mitotic. a. pituitary gland. 71. Because all action potentials are alike, how does the brain separate situations that require immediate attention from ordinary "positional" reports? What does the central nervous system use to determine the strength of a stimulus? b. Glossopharyngeal nerve 18. hippocampus, which of the following would most likely be the result? Classify Neurons by their Function. b. sympathetic nervous system. a. neuromuscular junction. Describe the structure of neurons 2. a. midbrain. 9. The basal ganglia act to stabilize voluntary movements. group cfibers are not capable of salatory conduction. Which of the choices below describes the ANS? b. glial cells. b. Pons Saltatory conduction is made possible by ________. b. increased heart rate. 2. They have extreme longevity. a. Myelin insulates neurons, keeping them at a high enough temperature to function well. A) mechanically gated channel The importance of a stimulus is derived from the number of stimuli received from the same source. Motor afferent neurons possess long dendrites and short axons. d. Sensory, Which neuron structure receives impulses from the preceding cell? likely true? Which of the following are afferent neurons, relative to the central nervous system? When a sensory neuron is excited by some form of energy, the resulting graded potential is called a(n) ________. (c) They have an exceptionally high metabolic rate. Neuroglia (a) conduct electrical impulses, (b) are nerve stem cells, (c) are support cells that aid neurons, (d) are an abnormal growth of neural tissue. b. . 12. What are the different classes of neurons and their functions? C) brain and spinal cord Select the correct statement regarding synapses. 78. The actual cause of the neurodegenerative component of the disease is however unclear. B) Group A fibers are mostly somatic sensory and motor and are the smallest in diameter. B) They have extreme longevity. As a component of the hyperdirect and indirect pathways, the STN is important for constraining movement, thought, and emotion through synaptic excitation of GABAergic basal ganglia output neurons. Integrate. 80. The sheath of Schwann is also called the ________. A) acetylcholine Which of the following is not true concerning the structural classification of neurons? 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. b. control the chemical environment around neurons. C. They are mitotic. d. represent a general decline of autonomic nervous system activity. These neurons are inhibitory neurons, meaning they release neurotransmitters that keep other neurons from firing. 2 introduce new . If a person ingested a substance that temporarily impaired the functioning of the Preganglionic neurons are located in the brain stem and sacral segments of the spinal cord. b. Sensory afferent neurons possess long dendrites and short axons. c. M2 a. Trigeminal nerve 69. A. True or False, Which of the following is not a function of astrocytes? If a drug severely depressed the functioning of the medulla, which of the following might be What do neurons synapse with? An inhibitory postsynaptic potential (IPSP) is associated with ________. The small layer of tissue surrounding the cerebral aqueduct in the brain is called: ________ potentials are short-lived, local changes in membrane potential that can be either depolarized or hyperpolarized. d. cause a tremor. B) They can form on receptor endings. the somatic nervous system. Neurotransmitter is released from presynaptic neurons through what mechanism? They are robust signaling cells. E) nucleic acid. Neurotransmitter binds to receptors on the postsynaptic cell membrane and allows ions to diffuse across the membrane. A thirestold potential must be excecded or reached. c. lead to foreign substances entering the brain from the circulatory system. Expert Answer. a. Pupil dilation a. hippocampus B) called neuroglial cells 24, 25 There were 255 and 319 . A) Cells with gap junctions use chemical synapses. D) effector, What is the role of acetylcholinesterase? d. neuromuscular junctions. 13. b. cerebellum. D) Ions always move from an area of higher concentration to an area of lower concentration, A second nerve impulse cannot be generated until ________. a. on dendrites. What are the possible responses? c. a ventricle. depression would be an example of: The presence of at least one Y chromosome indicates: a) motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands b) motor fibers that conduct nerve impulses from the CNS to skeletal muscles c) sensory and motor neurons t. 1. d. increased protection of the brain. Some neuroglia remove debris and foreign material from the nervous system. b. cause aggressive behavior. It also affects your cerebellum, the part of your brain that controls movement and balance. What are the properties of myelinated axons which makes them ideal for long-distance motor control of skeletal muscle? Neurons differ in their morphology and function. b. medulla d. acetylcholine. A chemical messenger that does not directly cause ESPSs or IPSPs but does affect the strength of synaptic transmission is a ________. Sensory and motor divisions. Which of the following lists the components found in a synapse? March 17, 2022. Potentials that are short-lived, local changes in membrane potential that can be either depolarized or hyperpolarized are called ________ potentials. c. reticular formation. 9. ependymal cells____ help to circulate the cerebrospinal fluid: which of the following is an excitatory nerotransmitter secreted by motor neurons innervating skeletal muscles? Neurons in the CNS are organized into functional groups. D) innervation of skeletal muscle, Collections of nerve cell bodies outside the central nervous system are called ________. b. oligodendrocytes. a. - Neurons have a cell body, which contains the majority of the cell's organelles. The membrane potential of the postsynaptic membrane changes. c. Motor neurons. DI) They have an exceptionally high metabolic rate. The part of the neuron responsible for receiving, integrating, and sending nerve impulses is the A. dendrite. d. inferior colliculus. b. transcription factors. c. The output (. : Question 35 1.5 pts Which of the following is not a special characteristic/property of neurons? True or False, Large-diameter nerve fibers conduct impulses much faster than small-diameter fibers. d. Parkinson's disease. Identify the neuron type described: Two neuron types whose cell bodies are in the spinal cord (CNS). Neurons may be classified according to several characteristics. a. Autonomic pathways consist of two types of motor neurons. a. b. ventricles. c. working memory. d. hypothalamus. a. Specialized cells in the nervous system that control behavior, senses, and movement are. b. motor fibers that conduct nerve impulses from CNS to skeletal muscles. a. motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands. 2. d. pituitary gland. c. neurotrophins. c. Motor efferent neurons possess long dendrites and short axons. Polygenic inheritance is the inheritance of traits that are influenced by multiple genes. If a physician identified her patient as a low drug metabolizer, which of the following is most b. Somatics To which part of the spinal cord is sensory information sent? a. increase the activity of reactive astrocytes. The person would have impaired decision making while the drug's effects were active. If an experimental drug produced physiological effects similar to nitric oxide, then a However, the electrical impulse cannot pass directly from a nerve cell to the skeletal muscle cells to excite them. A) They conduct impulses. While taking notes in class, a student had keep in mind what the professor had just stated in Classify Neurons by 3 Structures. _____________ is the study of how genes support the function of neurons. 70. a. meninges. Aim: The Combining Mechanisms for Better Outcomes randomized controlled trial assessed the effectiveness of various spinal cord stimulation (SCS) modalities for chronic pain. Their basic function is to receive and transmit information through electrical impulses. c. medulla. researcher would: 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. What distinguishes nerve cells and other excitable membranes (e.g., muscle cells) is that they are capable of changing their resting potential. 43. As you start working out, you notice that your heart rate and breathing rate start to increase. 3. Select all that apply. 23. c. epigenetic stimulus. 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? C) voltage stimulus to initiate Describe annual cleanupthat isfrequently present in these agreements. d. the structure is anterior to the area. Relative to the central nervous system, motor neurons are referred to as afferent neurons. A drug that reduces the activity of the amygdala would likely: Which of the following describes the ANS? C) Sodium gates will open first, then close as potassium gates open. The substance released at axon terminals to propagate a nervous impulse is called a(n) ________. For skeletal muscle cells to contract, they must be excited by motor neurons. 8. Which of the following is not a characteristic of neurons? B) Specific potassium gates will open. From a historical standpoint, no other cell type has attracted as much attention or caused as much controversy as the nerve cell. a. Pons D) They can be called postsynaptic potentials. A) the membrane potential has been reestablished ce3z/(4zi)3dz_ce^{3z}/(4z-i)^3dz 61. Which does NOT describe nervous tissue? having a low appetite. Conduct chemo-electrical impulses. In which area of the neuron is an action potential initially generated? Stimulation of initial axon segment Name the following: Nervous tissue cells that regulate the chemical environment of neurons. b. cingulate cortex. c. Activation of preganglionic parasympathetic neurons 62. What structural classification describes this neuron? b. Preganglionic neurons are short and synapse in ganglia located near the spinal cord. Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS) coined by inflammation and neurodegeneration. Choose the correct order of these events below. Motor has two divisions: the somatic and autonomic. When a gene is activated, a specific DNA segment is unraveled and transcribed onto: 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) _____. c. enhance the activity of reactive astrocytes. Which of the choices below describes the ANS? Many drugs that produce highly enjoyable effects likely do so by affecting the: Neurons are the cells that make up the brain and the nervous system. b. Interneurons. How are women stereotyped by men in Lamb to the Slaughter by Roald Dahl? d. cerebellum. Our experts can answer your tough homework and study questions. a. medulla. In addition to diffusion, what are two other mechanisms that terminate neurotransmitter activity? A researcher found that a drug increased heart rate. the sympathetic division of the autonomic nervous system. We studied the biochemical characteristics of dopaminergic (DA) neurons generated from induced pluripotent stem cells (iPSCs) from a PD . B. axon. d. Nuclei. d. Sympathetic ganglion, 24. True or False, The nodes of Ranvier are found only on myelinated, peripheral neuron processes. When activated, shortens C. Found in the brain and spinal cord. d. parasympathetic nervous system. All other trademarks and copyrights are the property of their respective owners. What is the long outgrowth of a neuron along which electrical impulses are transmitted? c. M2 microglial cells Which of the following is correct? Collections of nerve cell bodies outside the central nervous system are called ________. Briefly describe 6 effects this division has on the body. A) positively charged and contains less sodium GABA and glycine are amino acid neurotransmitters; dopamine and norepinephrine are catecholamines; and endorphin and enkephalin are peptide transmitters. B) Ions always move passively across membranes. a. A) ion 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. This disease causes gradual muscle stiffness . A) efferent neuron Strong stimuli cause the amplitude of action potentials generated to increase. Give a valid explanation of why this could occur. Ans: they are mitotic Unli . The hills on the surface of the brain are referred to as: described as having a word on the tip of your tongue, might have abnormal functioning in the: 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. True or False, Axon diameter and degree of myelination determine nerve impulse conduction velocity. 1.Introduction. 2. Which type of neurons are used to convey the special senses of sight? B) cholinesterase Neurons can function optimally for over 100 years. A drug that inhibited the reticular activating system would most likely cause: d. the person has a history of drug abuse. Are most pedagogues more interested in automation or orthography? The synaptic cleft prevents an impulse from being transmitted directly from one neuron to another. a. Astrocytes Contains lymphatic vessel. The STN also forms a reciprocally connected network with the GABAergic external globus pallidus that converges onto common basal ganglia output neurons. A neuron that has as its primary function the job of connecting other neurons is called a(n) ________. B) the Na ions have been pumped back into the cell Some ions are prevented from moving down their concentration gradients by ATP-driven pumps. A) act as a transmitting agent D) control the chemical environment around neurons This protective role is important because cells of the immune system are denied access to the CNS. c. basal ganglia. O They generate very fast O They are long when compared to other cells in the body O They help carry oxygen to different body parts O They do not have a nucleus. b. A postsynaptic cell can be a neuron, a muscle cell, or a secretory cell. d. hippocampus. 68. a. Doral root b. auditory information. What are the advantages and disadvantages of Europe's communications systems? Which of the following describes the excitatory postsynaptic potential? a) Myelinated axons transmit nerve impulses via continuous conduction. b. the structure is closer to the midline of the brain. B) large nerve fibers Which nervous system subdivision is a chain of two motor neurons consisting of a preganglionic and a postganglionic neuron? b. Gliosis 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 statements is incorrect? Then, underline the verb in parentheses that agrees with the subject. b. Neurons have . The correct answer is (d) All of these are characteristic of neurons. A. True or False, If bacteria invaded the CNS tissue, microglia would migrate to the area to engulf and destroy them. C) neurolemma Which of the following statements is true of both membrane potential responses shown in the graphs? b. the person has a disease that affects myelin around axons. B) muscle contraction would occur. c. decrease anxiety. Neurons are located both in the CNS and on the periphery. d. M1. a. anchor neurons to blood vessels. A) They are short-lived. Study with Quizlet and memorize flashcards containing terms like 1. a. the classification is based on the number of processes extending from the cell body b. multipolar neurons have several axons and one dendrite c. most neurons in the; Which of the following neurons forms the blood-brain barrier? D) sensory and motor neurons that supply the digestive tract, What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called? 6. This may account for the cycles of relapse and remission in different patients. 75. C) negatively charged and contains more sodium. D) found in the retina of the eye, Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle? As specifically as you can, outline the steps you would take to insert and express the gene for a new, nutritious seed protein in wheat. C. cell body. Extrapyramidal side effects produced by antipsychotic drugs are similar to the symptoms of: Which statement is true? 13. a. Multi-polar neurons b. Bipolar neurons c. Uni-polar neurons. c. neurons. A severe tremor in someone's hands could be caused by abnormal functioning in the: Characteristics of the Neuron. When information is delivered within the CNS simultaneously by different parts of the neural pathway, the process is called ________ processing. It is impossible in a single chapter to delineate comprehensively the extensive structural, topographical and functional variation achieved by this cell type. First, consider an object with an initial position x0x_0x0, an initial velocity v0v_0v0, and an acceleration aaa. Diminished activation of postganglionic sympathetic neurons Central Nervous System 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. a. cerebellar ataxia. B) are found on "pathfinder" neurons Image credit: iStockphoto. a. temporal lobe. which ofthe following is correct? c. a Mendelian disease. c. genes. 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? a. interneuron. 72. What does myelin do for neurons? B) The release of neurotransmitter molecules gives cells the property of being electrically coupled. Different types of neurons include sensory, motor, and interneurons, as well as structurally-based neurons, which include unipolar, multipolar, bipolar, and pseudo-unipolar neurons. What is the function of dendrites in a neuron? New three-photon miniature microscopes open the study of neuronal networks to those deep in the brains of behaving animals. 19. D) Schwann cells, Schwann cells are functionally similar to ________. Immediately after an action potential has peaked, which cellular gates open? 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.