which of the following is not characteristic of neurons?
High metabolic rate. D) size of action potentials, Bipolar neurons are commonly ________. b. The characteristic neurologic picture including loss of consciousness, temporary respiratory arrest, and loss of reflexes. C ) brain and spinal cord. Which of the following is NOT a characteristic of the parasympathetic division? 69. d. act as transcription factors. 1. A) sodium C) negatively charged and contains more sodium. A drug that caused someone to make a reckless decision might be affecting the: d. astrocytes form and maintain the blood-brain barrier. A . d. endothelial cells., 2. C) Sodium gates in the membrane can open in response to electrical potential changes. The inhibitory extracelluar matrix consists of chemicals that: a. 60. This area is also known as the soma or perikaryon. c. olfactory information. 33. d. The person would have dulled senses for some period of time after taking the substance. a. See Page 1. Which of the following is not a characteristic of ion channels? 40. A) acetylcholine Which of the following describes the excitatory postsynaptic potential? Site of mRNA translation for proteins of the axolemma c. Axon fibres are covered by a white sheath called myelin. 27. c. end terminus. B) oligodendrocytes The person may have an increase in heart rate. c. Motor neurons. GABA and glycine are amino acid neurotransmitters; dopamine and norepinephrine are catecholamines; and endorphin and enkephalin are peptide transmitters. certain disorder would most likely investigate which of the following? . Just from looking down a microscope, however, it becomes very clear that not all neurons are the same. researcher would: the afferent division of the nervous system. The small layer of tissue surrounding the cerebral aqueduct in the brain is called: hippocampus, which of the following would most likely be the result? In addition to diffusion, what are two other mechanisms that terminate neurotransmitter activity? What are the functional classifications of neurons? 18. b. hypothalamus. A. Neurons are the basic functional units of the nervous system, and they generate electrical signals called action potentials, which allow them to quickly transmit information over long distances. b. inhibit axon growth. A neuron consists of a nucleus, a region of tissue that contains the cell body. a. messenger ribonucleic acid. Which of the following statements most accurately describes the effects caused by binding of the neurotransmitter (green dots) to the structure labeled C? Its structure is multipolar. A) peripheral and spinal nerves B) brain, spinal cord, and peripheral nerves C) brain and spinal cord D) spinal cord and spinal nerves. 24, 25 There were 255 and 319 . Which of the choices below describes the ANS? Alzheimer's disease (AD) is a progressive neurodegenerative disorder with an increasing worldwide prevalence. d. The blood-brain barrier, 17. What are the different types of motor neurons? The CNS contains about 100 billion neurons, on the periphery - about 25 million.<br><br>The neuron is covered by a membrane that forms a closed space . Both responses are examples of graded potentials. A) They are short-lived. 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. Neuroglia perform supportive functions in the brain. [25] designed a voltage output feedback controller, which uses the neural network feed-forward (NNFF) with the harmony search algorithm (HSA) to control the PEMFC output voltage. True or False, The autonomic nervous system is under voluntary control; whereas, the somatic nervous system is involuntary. b. D) effector, What is the role of acetylcholinesterase? B) If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon ________. What are the small lower motor neurons that innervate intrafusal muscle fibers that are part of specialized stretch receptors called? Which of the following is NOT a characteristic of neurons? Some ions are prevented from moving down their concentration gradients by ATP-driven pumps. 3. 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. b. increased heart rate. a) Myelinated axons transmit nerve impulses via continuous conduction. c. pons The point where a motor neuron meets a muscle fiber is called the: 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? ATP neurotransmitters have what basic effect on the body? A) innervation of smooth muscle of the digestive tract inability to divide by mitosis long cell life span (longevity) high aerobic metabolic rate ability to survive in anaerobic (Uithout oxygen) conditions. C) the impulse would spread bidirectionally A) Sensory neuron B) Motor neuron C) Interneuron D) All of the above. They secrete acetylcholine. d. gray matter. Transcription factors increase or decrease gene transcription. What is the role of acetylcholinesterase? Neuroglia that control the chemical environment around neurons by buffering potassium and recapturing neurotransmitters are ________. First, consider an object with an initial position x0x_0x0, an initial velocity v0v_0v0, and an acceleration aaa. b. cause inattention. Which neurons belong to the efferent pathway? c. hindbrain. capacity of divide via mitosis due to absence of centrosomes. Longevity 2. Question. your answer. A substance that directly activates gene transcription is likely acting as a: The cerebral cortex has features called gyri and sulci. a. the hippocampus. Many drugs that produce highly enjoyable effects likely do so by affecting the: This may account for the cycles of relapse and remission in different patients. c. nucleus accumbens. C. Afferent. When the neurons were damaged, the number of Nissl corpuscles decreased significantly . B) A nerve impulse occurs if the excitatory and inhibitory effects are equal. The importance of a stimulus is derived from the number of stimuli received from the same source. b) The preganglionic neuron (sometimes called the ganglionic neuron), is the second motor neuron. After peripheral nerve injuries, damaged axons can regenerate but functional recovery is limited by the specific reinnervation of targets. c. Motor efferent neurons possess long dendrites and short axons. The patient has a polymorphism that slow metabolism of a drug. The structure that meets the spinal cord in the hindbrain is the: b. that a person is genetically female. Select all that apply. C) Group B fibers are highly myelinated and have the highest conduction velocities. a. impair memory. D) biogenic amine, A neuron that has as its primary function the job of connecting other neurons is called a(n) ________. the sympathetic division of the autonomic nervous system. A) the impulse would move to the axon terminal only. C) biogenic amine Potentials that are short-lived, local changes in membrane potential that can be either depolarized or hyperpolarized are called ________ potentials. B) chloride Identify the following: Acetylcholinesterase would be found in the synapse between neurons for this branch of the ANS and the effector cells. 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) _____. b. Somatic Nervous System a. Dendrites and axon Which membrane potential occurs because of the influx of Na+ through chemically gated channels in the receptive region of a neuron? 75. b. motor fibers that conduct nerve impulses from CNS to skeletal muscles. Allow ions to move in and out of its cellular membrane. 1. A neuron was found to originate in the hippocampus and terminate in the prefrontal cortex. Which division of your nervous system is generating this response? 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. It stores energy reserves. 59. a. Astrocytes All of the following describe functions for cerebrospinal fluid except: 3. Collections of nerve cell bodies in the peripheral nervous system are called ________. The prefrontal cortex is important for working memory function. Diminished activation of postganglionic sympathetic neurons The Quadratic Formula from Kinematics In this problem we show how the kinematic equations of motion can be used to derive the quadratic formula. Discover and discuss the meaning of dendrites, axon, membrane polarization, membrane depolarization, and synapses. d. cerebellum. d. the hypothalamus. A patient was admitted for depression. Mountainside's local landscaping business totaled approximately $789,400 in sales for the year. B) nerves The frequency of impulse transmission indicates the stimulus intensity and the brain responds appropriately. A) act as a transmitting agent Which of the following is not true of graded potentials? kg 1), . D. Association Central Nervous System. d. neuromuscular junctions. response? B) excitatory potential 19. d. the person has a history of drug abuse. d. parasympathetic nervous system. 68. What is the role of microglial cells and why are they so important in the CNS? What type of channel on the postsynaptic membrane binds neurotransmitter? 11. Which of the following is true about the movement of ions across excitable living membranes? b. Sensory afferent neurons possess long dendrites and short axons. 48. They have high energy requirements (about 20 per. a. neuromuscular junction. a. meninges. Which of the choices below describes the ANS? The basal ganglia act to stabilize voluntary movements. Which of the following is NOT characteristic of the sympathetic division of the autonomic nervous system? Answer: Option D is correct Explanation: Neurons generally do not e . Events that occur during synaptic activity are listed here, but they are arranged in an incorrect order. Which of the following IS NOT a description of a neuron? What is the direct role of neurotransmitter at a chemical synapse? b. cholinesterase. (a) They conduct impulses. Which cranial nerve receives sensory information from the heart, liver, and intestines? 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. O They have extreme longevity. In this study we evaluated if motor and sensory neurites have a substrate preference for laminin and . Cells may have long extensions. Sympathetic nervous system neurons contact muscle tissue at neuromuscular junctions. c. Activation of preganglionic parasympathetic neurons Which of the following is not a function of the autonomic nervous system? (a . d. ventral root. which ofthe following is correct? Is the information in this quote about afferent of efferent? 76. b. thalamus. 51. Image credit: iStockphoto. The principles outlined above can be applied to the neuron and its ionic contents.. c. Astrocytes d. M1 microglial cells. 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. a. Oligodendrocytes Which ion channel opens in response to a change in membrane potential and participates in the generation and conduction of action potentials? b. C) diphasic impulses E) nucleic acid. I was doing so well." Strong stimuli cause the amplitude of action potentials generated to increase. d. Inhibited salvation. D) They are mitotic. cells would most likely be responsible? Required fields are marked. destroy ACh a brief period after its release by the axon endings. Classify Neurons by 3 Structures. b. 23 We detected neurons and extracted temporal components from the calcium imaging data (Figure 2 C) with the CNMF-E toolbox. a. reference memory. Identify the cell type below that assists the function of neurons and has a supportive role within the nervous system? Spiral ganglion neurons (SGNs) play a vital role in conveying complex information from hair cells to the brainstem (Shrestha et al., 2018).As the injury or degeneration of SGNs is particularly devastating to hearing function, thus the repair of SGNs is of great importance in hearing-related biomedical fields (Petitpre et al., 2018; Wei et al., 2021). _____________ is the study of how genes support the function of neurons. B) motor fibers that conduct nerve impulses from the CNS to skeletal muscles We studied the biochemical characteristics of dopaminergic (DA) neurons generated from induced pluripotent stem cells (iPSCs) from a PD . B) Schwann cells a. Axons b. Neurons c. Neuroglia d. Synapses e. Type A fibers, Which of the following parts of a neuron contain excitable membranes? group cfibers are not capable of salatory conduction. If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon ________. Which of the following describes the nervous system integrative function? a. increase the activity of postganglionic sympathetic neurons. a. The p.N370S substitution causes a violation of the enzyme conformation, which affects its stability in the cell. What are the possible responses? An inhibitory postsynaptic potential (IPSP) is associated with ________. D) potassium, Nerve cell adhesion molecules (N-CAMs) ________.