Which of the following is NOT a type of circuit? 35. 2. D) Schwann cells, Schwann cells are functionally similar to ________. Which of the following is not true concerning the structural classification of neurons? The axon c. The dendrites d. The Nissl bodies. a. anchor neurons to blood vessels. 31. Discovering that early life stress may cause polymorphisms that increase the risk of 57. b. Interneurons. B. axon. mastering a&p- chapter 11 (part of 12) EXAM 5, Anatomy & Physiology Test 2: Tissues & Integu, UTA Biol 2458- A&P 2 Aranda Test review 1, Mastering Homework Questions and Notes: Actio, The Language of Composition: Reading, Writing, Rhetoric, Lawrence Scanlon, Renee H. Shea, Robin Dissin Aufses, Edge Reading, Writing and Language: Level C, David W. Moore, Deborah Short, Michael W. Smith. What is a credit line? kg 1), . D) the impulse would move to the axon terminal only, and the muscle contraction would occur, Which of the following neurotransmitters inhibits pain and is mimicked by morphine, heroin, and methadone? (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? Unipolar,Bipolar,Multipolar. Are most pedagogues more interested in automation or orthography? A . B) Specific potassium gates will open. What is the function of upper motor neurons? 60. b. basal ganglia synapses. d. Inhibited salvation. A) Group C fibers are not capable of saltatory conduction. a. basal ganglia They are like neurons except that they lack axons. C. Afferent. Neuronal processes that normally conduct impulses toward neuron cell bodies are called and those that carry impulses away from neuron cell bodies are called. a. efferent neuron b. afferent neuron c. association neuron d. glial cell, Which of the following is not characteristic of neurons? The characteristic neurologic picture including loss of consciousness, temporary respiratory arrest, and loss of reflexes. c. pineal gland. D) tracts, The term central nervous system refers to the ________. Describe the structure of neurons 2. A Pyrex container is completely filled with 275cm3275 \mathrm{~cm}^3275cm3 of mercury at 10.0C10.0{\degree} \mathrm{C}10.0C. a. cerebellar ataxia. 19. Question. Select the correct statement regarding synapses. (a) Cell body (b) Dendrites (c) Axon (d) All of the above are structural features of a neuron. threshold Voltage-gated Na+ B) excitatory potential certain disorder would most likely investigate which of the following? a. 8. If the electrode is removed, a potential of zero is recorded again. d. tremor. a. astrocytes play a role in neurotransmission. c. The patient has a low level of transcription factors. The characteristics that vary on a continuum among people, such as height, skin color, or intelligence, are most likely determined by polygenic inheritance. The frequency of impulse transmission indicates the stimulus intensity and the brain responds appropriately. Diminished cerebral blood flow increases oxygen to neurons. 12. C) action potential Allow ions to move in and out of its cellular membrane. The parasympathetic division includes the splanchnic nerves. having a low appetite. Some ions are prevented from moving down their concentration gradients by ATP-driven pumps. D) A small . Motor. The synapse more common in embryonic nervous tissue than in adults is the ________. C) biogenic amine 36. b. Epigenetics c. provide the defense for the CNS. a. pituitary gland. Neurons are located both in the CNS and on the periphery. Which division of your nervous system is generating this response? Central Nervous System c. cause the release of neurotrophins. What are the different types of neurons in the ANS and where are they located? b. medulla. D) Schwann cell, Which ion channel opens in response to a change in membrane potential and participates in the generation and conduction of action potentials? A person suffering from an inability to speak the word she intends to say, sometimes The human body is made of about 100 billion neurons. A) peripheral and spinal nerves B) brain, spinal cord, and peripheral nerves C) brain and spinal cord D) spinal cord and spinal nerves. 1. c. M2 microglial cells Which of the following statements regarding nervous tissue is not true? a. Mitochondria in a neuron would no longer function. b. thalamus. b. cause inattention. 3. B) A nerve impulse occurs if the excitatory and inhibitory effects are equal. In the presence of invading microbes, microglial cells become macrophages to phagocytize the microbes and neuronal debris. B) A nerve impulse occurs if the excitatory and inhibitory effects are equal. D) positively charged and contains more sodium. Classify Neurons by their Function. Which pattern of neural processing is important for higher level mental processing such as problem solving? ependymal cells____ help to circulate the cerebrospinal fluid: which of the following is an excitatory nerotransmitter secreted by motor neurons innervating skeletal muscles? What are the small lower motor neurons that innervate intrafusal muscle fibers that are part of specialized stretch receptors called? c. Motor efferent neurons possess long dendrites and short axons. D) are crucial for the development of neural connections, An inhibitory postsynaptic potential (IPSP) is associated with ________. a. Axons b. Neurons c. Neuroglia d. Synapses e. Type A fibers, Which of the following parts of a neuron contain excitable membranes? Group of answer choices: Neuroglia refer to neurons with axons coated in myelin. Serotonin is a biogenic amine neurotransmitter widely distributed in the brain, where it plays a role in emotional behavior and helps to regulate the biological clock. A) sodium Neurons may be classified according to several characteristics. Functions. Which of the following describes the nervous system integrative function? Which of the following is not a function of the autonomic nervous system? B) Schwann cells 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. A disease that destroyed astrocytes would be expected to: D) all sodium gates are closed, In what way does the interior surface of a cell membrane of a resting (nonconducting) neuron differ from the external environment? B) Ions always move passively across membranes. O They conduct impulses. a. other neurons b. muscles c. glands d. all of the above, All of the following are characteristics of sympathetic preganglionic neurons EXCEPT: a. Which of the following is not true of graded potentials? depression would be an example of: B) innervation of cardiac muscle d. Interneurons, 16. Which of the following is not a function of astrocytes? The term central nervous system refers to the ________. b) Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons. Extrapyramidal side effects produced by antipsychotic drugs are similar to the symptoms of: Has component cells designed for conductivity b. the afferent division of the nervous system. d. that a person has autochromosomal traits. A gap between Schwann cells in the peripheral system is called a(n) ________. Which of the following portions of the neuron transmits neurotransmitters? Demyelination interferes with saltatory conduction, which would result in a slowing down of nerve impulse propagation. Discovering that someone has glial scars means suggests that: What market share did Mountainside have? a. it provides a protective cushion for the brain. d. Sensory efferent neurons po. b. ANS stimulation of involuntary effectors is always excitatory. channels open Influx of Na+ AP regenerated in c. a ventricle. a. interneuron. Which of the following membrane regions would have significant numbers of voltage-gated ion channels? 13. 18. (b) Ordinary tungsten incandescent lightbulbs used in households are filled with argon gas at about 0.5 atm to retard the sublimation of the tungsten filament. C. cell body. b. hypothalamus a. Neurogenetics Multiple sclerosis (MS) is a disease in which the myelin sheaths are destroyed. Experts are tested by Chegg as specialists in their subject area. Longevity 2. b. Get access to this video and our entire Q&A library. Specific instructions that encode for traits are called: Which of the following is NOT a function of astrocytes? ______________ are chemicals that promote the growth and development of neurons. d. pituitary gland. d. temporal lobe. The synaptic cleft prevents an impulse from being transmitted directly from one neuron to another. b) Myelin prevents conduction of electricity from the axon hillock to the axon terminal. group cfibers are not capable of salatory conduction. b. Large-diameter nerve fibers conduct impulses much faster than small-diameter fibers. ce3z/(4zi)3dz. 49. Oligodendrocytes are a type of neuroglia. c. decrease anxiety. a. C) anchor neurons to blood vessels c. enhance the activity of reactive astrocytes. An experimental drug that reduces the release of chemicals that inhibit axon growth may: Do not divide - (neural stem cells are an exception) 3. A) positively charged and contains less sodium b. transcription factors. A) Specific sodium gates will open. What do neurons synapse with? The GBA gene encodes the lysosomal enzyme glucocerebrosidase (GCase). 63. 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. 51. b. Reactive astrocytes 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 . What does myelin do for neurons? b. smooth muscle cells are uninucleated. 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 reticular activating system includes all of the following structures except: Some neuroglia remove debris and foreign material from the nervous system. The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to take place. Which of the following would NOT be an example of having an activated sympathetic Which of the following is NOT a characteristic of neurons? c. it increases flow to highly active neurons. d) There, In order for skeletal muscle cells to contract, they must be excited by motor neurons. 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? However, the neuron in question does not transmit an impulse. D. Involved in fast-acting body control. All of the following describe the functions of astrocytes except: a. increase the activity of postganglionic sympathetic neurons. b. sulci. C) guide the migration of young neurons, synapse formation, and helping to determine capillary permeability nervous system? C) opens K+ or Cl- channels The hypothalamus is located in the: In general, neurons cannot be replaced if destroyed. Is the information in this quote about afferent of efferent? d. Nuclei. The greater the density of spines along dendrites, the greater a neuron's: 5. The comparison demonstrates that the suggested controller closely tracks the reference voltage than the . 40. 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 . True or False, Some neurotransmitters can be either excitatory or inhibitory depending upon the receptor. When a sensory neuron is excited by some form of energy, the resulting graded potential is called a(n) ________. d. motor neuron. Which of the following is NOT characteristic of the sympathetic division of the autonomic nervous system? B) They have extreme longevity. What are the two(2) functional neuron types that are structurally multipolar neurons? They have long fibers from CNS to ganglion. A. Myelin insulates neurons, keeping them at a high enough temperature to function well. d. the person has a history of drug abuse. Which of the following lists the components found in a synapse? Cell body c. Ganglion d. Axon, Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle? d. frontal lobe. C) negatively charged and contains more sodium b. Pons Strong stimuli cause the amplitude of action potentials generated to increase. Which of the following is not a special characteristic of neurons? d. increased protection of the brain. e. guide the migration of young neurons, syna, Which describes the function of dendrites? During depolarization, the inside of the neuron's membrane becomes less negative. A) postsynaptic potential C) frequency of action potentials B) brain, spinal cord, and peripheral nerves d. gyri. Which of the following are afferent neurons, relative to the central nervous system? a. C) They are mitotic. Integrate. b. autosomal chromosomes. d. The person would have dulled senses for some period of time after taking the substance. Resting potentials are not just characteristics of nerve cells; all cells in the body have resting potentials. B) If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon ________. Briefly describe 6 effects this division has on the body. True or False, The action potential is caused by permeability changes in the plasma membrane. copyright 2003-2023 Homework.Study.com. That is, they have a single axon and many dendrites. Name the two other neuron types which are cholinergic. Why does a hyperpolarization phase generally follow a repolarization phase in an action potential? c. reduced oxygen delivery to cells. Immediately after an action potential the potassium gates, being slow gates that do not respond to change in the electrical charge, allow additional K+ ions to flood into the cell. The interior of a neuron is composed of cytoplasm and a gel that is called.