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

B) norepinephrine d. tremor. b. Sensory afferent neurons possess long dendrites and short axons. (a) microglia (b) oligodendrocytes (c) ependymal cells (d) astrocytes. 13. The autonomic has two divisions: the sympathetic and parasympathetic. There are two basic neuron-containing systems: the central nervous system (CNS), which includes the spinal cord and brain, and the peripheral nervous system (PNS), which includes all other nerve tissues. c. enhance the activity of reactive astrocytes. 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 . C. Skeletal muscles are responsible for the pumping action of the heart. Which of the following describes the excitatory postsynaptic potential? help to circulate the cerebrospinal fluid. Discovering that someone has glial scars means suggests that: 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. d. temporal lobe. B) amino acid d . likely to occur? 2.Motor. A. Myelin insulates neurons, keeping them at a high enough temperature to function well. 80. d. Neurons. a. reduced cerebrospinal fluid. D) positively charged and contains more sodium. which of the following is not characteristic of neurons? - OneClass b. Pons (a) They conduct impulses. Describe annual cleanupthat isfrequently present in these agreements. b. that a person is genetically female. A. e. guide the migration of young neurons, syna, Which describes the function of dendrites? A neuron consists of a nucleus, a region of tissue that contains the cell body. are crucial for the development of neural connections. B) If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon ________. Characteristics of the Neuron. Treatment of pain with local anesthetics leads to an unfavorable decrease in general sensory acuity due to their indiscriminate block of both pain sensing . The pathogenesis of the sudden disruption of neurologic function is unknown; it probably involves dysregulation of the reticular activating system in . This area is also known as the soma or perikaryon. Strong stimuli cause the amplitude of action potentials generated to increase. While taking notes in class, a student had keep in mind what the professor had just stated in According to the humidity characteristics of PEMFC, Vinu et al. Which component has a role in the postsynaptic cell during synaptic activity? a. 1. Its structure is multipolar. a. parietal lobe. 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. c. pons. Damage to the ________________ could cause changes to one's motivation to eat, such as Both responses are examples of graded potentials. Site of mRNA translation for proteins of the axolemma c. Axon fibres are covered by a white sheath called myelin. A&P Ch. 14 Flashcards - Cram.com 6. c. Transcription factors C) voltage stimulus to initiate Neurotransmitter is released from presynaptic neurons through what mechanism? 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. a. that a person will have a polymorphism. Expert Answer. Just from looking down a microscope, however, it becomes very clear that not all neurons are the same. Hint. D) gamma aminobutyric acid, Which of the following describes the nervous system integrative function? Which of the following lists the components found in a synapse? The axon hillock is located: The synaptic cleft b. innervation of skeletal muscle. A) cholinesterase A) sodium A. Sensory. Motor. hippocampus, which of the following would most likely be the result? Melatonin is released from the: 60. Which of the following is correct? The interior is ________. 1. a. the hippocampus. C) biogenic amine Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle? a) Myelin insulates neurons, keeping them at a high enough temperature to function well. D) They have an exceptionally high metabolic rate. The person may have constricted pupils. Characteristics and Function of Neurons - Step To Health Contains lymphatic vessel. b. expect to find increased blood flow. c. Inhibited digestion The parasympathetic division includes the pelvic nerves. 10 Characteristics Of Neurons (Nerve Cells) and Nervous System - 8SA.NET a. messenger ribonucleic acid. Myelinated neurons conduct impulses faster than unmyelinated neurons because? c. basal ganglia. c. Myasthenia Gravis. Which neurons reside only within the CNS? Indicate the number of orbitals in the 6p sublevel. 30. a. Activation of preganglionic sympathetic neurons Alzheimer's disease (AD) is a progressive neurodegenerative disorder with an increasing worldwide prevalence. c. Motor neurons. Which of the following is not a function of astrocytes? Identify the neuron type described: A functional neuron type most prevalent in the CNS. Two subtypes of motor neurons have been identified: inferior and superior. A severe tremor in someone's hands could be caused by abnormal functioning in the: 27. Which of the following correctly describes a graded potential? A gap between Schwann cells in the peripheral system is called a(n) ________. b. hypothalamus The person may have an increase in heart rate. Select all that apply. a. corpus callosum. What do neurons synapse with? a. M4 Why does a hyperpolarization phase generally follow a repolarization phase in an action potential? sure to include the influence of German philosopher Karl Marx in Extracellular singleunit recordings of piriform cortex neurons in rats b. Myelin prevents conduction of electricity from the axon hillock to the axon terminal. 52. B) They can form on receptor endings. Estimate the number of moles of Ar in a typical lightbulb. True or False, If bacteria invaded the CNS tissue, microglia would migrate to the area to engulf and destroy them. b. Neurotransmitters Responding to brain injury is an important function of astrocytes. 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. a. pituitary gland. d. M1. A) origin of the stimulus A) peripheral and spinal nerves Neurons: New three-photon miniature microscopes open the study of neuronal networks to those deep in the brains of behaving animals. What is the function of dendrites in a neuron? 40. Polygenic inheritance is the inheritance of traits that are influenced by multiple genes. a. Microglial cell activation d. RNA. Which of the following is NOT a type of circuit? A) the myelin sheath d. Neurogenetics. A) peripheral and spinal nerves B) brain, spinal cord, and peripheral nerves C) brain and spinal cord D) spinal cord and spinal nerves. Has component cells designed for conductivity b. Cedric S Raine. Neurons are a type of cell and are part of the nervous system. d. at the axon terminal. They propel cellular components along microtubules. Select the correct statement regarding synapses. A. excitability B. neurotransmitter production C. high energy needs D. capability of mitosis. 66. c. nucleus accumbens. B They have extreme longevity. ________ potentials are short-lived, local changes in membrane potential that can be either depolarized or hyperpolarized. Introduction to Neurons and Neuronal Networks | Section 1, Intro How are women stereotyped by men in Lamb to the Slaughter by Roald Dahl? 56. The presence of at least one Y chromosome indicates: Nerve cell adhesion molecules (N-CAMs) ________. Upper motor neurons are classified according to the pathways they travel in C. The Babinski response is not characteristic of paralysis from UMN lesions Neurons create extensive communication networks throughout the nervous system. D) The synaptic cleft prevents an impulse from being transmitted directly from one neuron to another. Inhibitory postsynaptic potentials (IPSPs) are "firing," but due to the neurotransmitter released and its action, the postsynaptic neuron is inhibited from "firing" (hyperpolarized). a. Neurogenetics C) They have an exceptionally high metabolic rate. The p.N370S substitution causes a violation of the enzyme conformation, which affects its stability in the cell. d. represent a general decline of autonomic nervous system activity. a. increase the activity of reactive astrocytes. During depolarization, the inside of the neuron's membrane becomes less negative. If a neuroscientist described a structure as more lateral to a particular area, this means that: The oligodendrocytes can myelinate several axons. Neurons generate and conduct electrical impulses called action potentials. a. it is not an increase in membrane potential b. causes the voltage of the internal membrane towards zero c. inside the membrane becomes more positive than resting potential d. lowers the probability of producing an action potential e. none of the above. d. the person has a history of drug abuse. b. increasing glial scarring. c) Neurons are the most abundant type of cell in nervous tissue. 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. Which of the following is NOT characteristic of smooth muscle? c. ventricles. threshold Voltage-gated Na+ 79. response? In general, neurons cannot be replaced if destroyed. a. the thin filaments of smooth muscle fibers are attached to dense bodies. The small layer of tissue surrounding the cerebral aqueduct in the brain is called: A) ion Free Flashcards about ap chap 11 - StudyStack D) moves membrane potential away from threshold. A) acetylcholine 3. c. Autonomic Nervous System d. The blood-brain barrier, 17. The thalamus routes all types of sensory information except: A postsynaptic potential is a graded potential that is the result of a neurotransmitter released into the synapse between two neurons. What mechanism is responsible for axonal transport? Characteristics of neurons Flashcards | Quizlet d. that a person has autochromosomal traits. c. synapses. (a) They conduct impulses. b. oligodendrocytes. d. hypothalamus. Solved Which of the following is NOT characteristic of | Chegg.com b. C) neurotransmitter Which functional classification of neurons is the most numerous? Neurons are the cells that make up the brain and the nervous system. c. The patient has a low level of transcription factors. d. reduce cortical arousal. Motor afferent neurons possess long dendrites and short axons. d. medulla. From a historical standpoint, no other cell type has attracted as much attention or caused as much controversy as the nerve cell. 75. A neuron was found to originate in the hippocampus and terminate in the prefrontal cortex. b. efferent neuron. copyright 2003-2023 Homework.Study.com. (a) Fluorescent lightbulbs contain a small amount of mercury, giving a mercury vapor pressure of around 1*10^(-5) atm. A substance that inhibits the activity of the cerebellum would be expected to: having a low appetite. 2. a. In which area of the neuron is an action potential initially generated? Ans: they are mitotic Unli . High mitotic rate B. Its axon, the postganglionic axon, extends to the effector organ. 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 ________. Many drugs that produce highly enjoyable effects likely do so by affecting the: Central nervous system - Supporting function to neurons and their 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. Mountainside's local landscaping business totaled approximately $789,400 in sales for the year. d. gray matter. C. Afferent. Which of the following is not characteristic of neurons? channels open Influx of Na+ AP regenerated in Be a) ion b) cholinesterase c) neurotransmitter d) biogenic amine. Which of the following is NOT a function or characteristic of neurons? To reveal how individual NAc neurons respond to reward, we implanted gradient index (GRIN) lenses in the NAcLat and the NAcMed and recorded single-neuron calcium activity using a miniature head-mounted microscopy (Figures 2 A and 2B). Neurons may be classified according to several characteristics. A) mechanically gated channel View the full answer. The person would have impaired decision making while the drug's effects were active. a. extrapyramidal motor system. Central Nervous System Solved Question 35 1.5 pts Which of the following is not a - Chegg Begin by sketching the contour. This is an example of: Which of the following is NOT a characteristic of neurons? D) A small . a. interneuron. a. efferent neuron b. afferent neuron c. association neuron d. glial cell, Which of the following is not characteristic of neurons? When a sensory neuron is excited by some form of energy, the resulting graded potential is called a(n) ________. The neuronal membrane. taking the substance. However, the electrical impulse cannot pass directly from a nerve cell to the skeletal muscle cells to excite them. A. astrocytes B. ependymal cells C. microglia D. Schwann cells, Which of the following options is correct? Enkephalins and endorphins are peptides that act like morphine. the membrane potential has been reestablished. D) are crucial for the development of neural connections, An inhibitory postsynaptic potential (IPSP) is associated with ________. Which of the following cells are not found in a connective tissue? A researcher found that a drug increased heart rate. What is the role of acetylcholinesterase? 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. b. thalamus. a. C) proteins have been resynthesized b. it provides a medium for nutrients to cells. c. decrease anxiety. d. The person may have motor tremor. B) synapse A postsynaptic cell can be a neuron, a muscle cell, or a secretory cell. 10. b. hindbrain. Neuroglia perform supportive functions in the brain. likely true? You'll get a detailed solution from a subject matter expert that helps you learn core concepts. C) diphasic impulses Neurons are located both in the CNS and on the periphery. Cell bodies of sensory neurons may be located in ganglia lying outside the central nervous system. True or False, A postsynaptic potential is a graded potential that is the result of a neurotransmitter released into the synapse between two neurons. B) the Na ions have been pumped back into the cell B) They have extreme longevity. WHICH OF THE FOLLOWING IS TRUE REGARDING UMNS ? D) spinal cord and spinal nerves, The substance released at axon terminals to propagate a nervous impulse is called a(n) ________. The hypothalamus is located in the: Which is not characteristic of neurons a high mitotic - Course Hero ce3z/(4zi)3dz. b. M3 b. Medulla b. 4. 1. a. cerebral aqueduct. True or False, Axon diameter and degree of myelination determine nerve impulse conduction velocity. Ganglia are on or near the target organ. Conduct chemo-electrical impulses.