a. periaqueductal gray. What is the role of acetylcholinesterase? C) Sodium gates in the membrane can open in response to electrical potential changes. Enkephalins and endorphins are peptides that act like morphine. Which of the following is not characteristic of neurons? (a) They The person would have impaired decision making while the drug's effects were active. c. it increases flow to highly active neurons. B) If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon ________. Its cell body is in an autonomic ganglion outside the CNS. C) brain and spinal cord D) effector, What is the role of acetylcholinesterase? A) They increase amplitude as they move away from the stimulus point. The characteristic neurologic picture including loss of consciousness, temporary respiratory arrest, and loss of reflexes. The hypothalamus is located in the: They secrete acetylcholine. C) innervation of glands 3 special characteristics of neurons. When a sensory neuron is excited by some form of energy, the resulting graded potential is called a(n) ________. c. Myelin traps sodium ions in the axon and, What does myelin do for neurons? Solved Which of the following is NOT a characteristic of - Chegg Strong stimuli cause the amplitude of action potentials generated to increase. 43. The term central nervous system refers to the ________. Even though someone is diagnosed with MS, the axons are not damaged. When excited electrically, the Hg atoms emit UV light, which excites the phosphor coating of the inner tube, which then emits visible (white) light. Which of the following surrounds PNS neurons and provides support? 71. Which of the following is not a function of astrocytes? This disease causes gradual muscle stiffness . B) They can form on receptor endings. C) depolarization (a) can maintain ionic balance of extracellular environment for neurons (b) can take glucose from blood to provide to neurons to make ATP (c) can take up neurotransmitter from a synapse (d) can phag, Which of the following are characteristics of myelinated axons? Solved Which of the following is NOT characteristic of | Chegg.com C) are crucial in the production of neurotransmitters A. These K+ ions decrease the positive ion concentration momentarily below the normal -70mV and thus hyperpolarize the cell. The synapse more common in embryonic nervous tissue than in adults is the ________. The sheath of Schwann is also called the ________. A) the impulse would move to the axon terminal only Which division of your nervous system is generating this response? d. reduce cortical arousal. c. meninges. B) endorphin A. When information is delivered within the CNS simultaneously by different parts of the neural pathway, the process is called ________ processing. What are the exact characteristics of neurons? - Quora Oligodendrocytes form: d. Interneurons, 16. Visual disturbances, paralysis, and weakness, Elliot Aronson, Robin M. Akert, Samuel R. Sommers, Timothy D. Wilson, Elliot Aronson, Robin M. Akert, Timothy D. Wilson. What are the cells that transmit nerve impulses between parts of the nervous system? b. If physicians found that inflammation had caused damage to the blood-brain barrier, which a. Schwann cells b. satellite cells c. microglia d. astrocytes e. oligodendrocytes f. ependymal cells. 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. Oligodendrocytes form and maintain the blood-brain barrier. 10 Characteristics Of Neurons (Nerve Cells) and Nervous System - 8SA.NET d. improve recovery from traumatic brain injury. c. striations present are due to the orderly arrangement of actin and myosin. d. astrocytes form and maintain the blood-brain barrier. 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. thalamus. (1991) finds that the CA1 neuron exhibits trains of action potentials when a small current (< 1 nA) is applied to the soma, but a full calcium spike and burst followed by trains of action potentials when the same small current is applied to . d. Neurons. A) the membrane potential has been reestablished D) Schwann cells, Schwann cells are functionally similar to ________. c. neurotrophins. b. astrocytes respond to injury. The parasympathetic division includes the pelvic nerves. The reduction - A Mathematical Model of CA1 Hippocampal Neurons with d. Extrapyramidal System. Characteristics Of Neurons. ch. 11 test 4 Flashcards | Quizlet View the full answer. d. cerebellum. a. synapses. A. Sensory. b. increasing glial scarring. B) afferent neuron b. autosomal chromosomes. Which cranial nerve receives sensory information from the heart, liver, and intestines? b. Somatics b. cause aggressive behavior. Why does a hyperpolarization phase generally follow a repolarization phase in an action potential? 72. a. cerebellar ataxia. C) destroy ACh a brief period after its release by the axon endings d. at the axon terminal. d. RNA. Which of the following would be most likely to increase heart rate? b. sulci. Neurons synapse with: a. other neurons b. muscles c. glands d. all of these. Choose the correct order of these events below. d. a transcription factor. Which of the following is false or incorrect? The Quadratic Formula from Kinematics In this problem we show how the kinematic equations of motion can be used to derive the quadratic formula. c. they form an insulating material around axons. WHICH OF THE FOLLOWING IS TRUE REGARDING UMNS ? Chapter 11 Flashcards - Easy Notecards A. excitability B. neurotransmitter production C. high energy needs D. capability of mitosis. Solved 26. Which of the following is not a characteristic of | Chegg.com c. Hypoglossal nerve D) size of action potentials, Bipolar neurons are commonly ________. Full article: A Novel Cerebroprotein Hydrolysate, CH1, Ameliorates First, consider an object with an initial position x0x_0x0, an initial velocity v0v_0v0, and an acceleration aaa. b. polymorphism. a. receives input from sensory neurons b. directs activity of motor neurons that innervate muscles and glands c. contains association neurons within the brain and spinal cord d. conta, Which of the following is not a function of astrocytes? B) A nerve impulse occurs if the excitatory and inhibitory effects are equal. B) They can form on receptor endings. 55. (a) hardened cells and neurons (b) neurons and supporting cells (c) chondrocytes and neurons (d) neuronocytes and smooth muscle cells. b. Glossopharyngeal nerve b. auditory information. The part of a neuron that conducts impulses away from its cell body is called a(n) ________. Show the details. Briefly describe 6 effects this division has on the body. b. Microglial cells 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 cells are not found in a connective tissue? They are electrically excitable cells which generate action potentials. 56. The neuronal membrane. For skeletal muscle cells to contract, they must be excited by motor neurons. c. synapses. 47. b. forebrain. Give a valid explanation of why this could occur. a. C) biogenic amine 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 . Like the heart, lungs, and stomach, the nervous system is made up of specialized cells. Neurotransmitters are chemical signals used as a means of communication. b. thalamus. What is the role of microglial cells and why are they so important in the CNS? B) The release of neurotransmitter molecules gives cells the property of being electrically coupled. What effect might a disease that destroyed oligodendrocytes have on neuronal function? c. hippocampus. However, the neuron in question does not transmit an impulse. b. Constricted airways help to circulate the cerebrospinal fluid. Identify the neuron type described: Two neuron types whose cell bodies are in the spinal cord (CNS). Which of the following is NOT characteristic of the sympathetic division of the autonomic nervous system? In which area of the neuron is an action potential initially generated? b. A researcher found that a drug increased heart rate. Neurons: Neurons in the CNS are organized into functional groups. Neurons and muscle cells are considered excitable tissues because they do what? a. Pupil dilation b. on the soma. Which of the following is not characteristic of neurons? innervation of skeletal muscle. 74. Sensory Neurons Motor Neurons Inter-Neurons (b) They have extreme longevity. Some axon terminals contain more than one kind of neurotransmitter. 13. A neuron consists of a nucleus, a region of tissue that contains the cell body. D) tracts, The term central nervous system refers to the ________. b. Neurons would be unable to form the blood-brain barrier.