b. Ventral root A) cell body A) support and brace neurons b. Neurons would be unable to form the blood-brain barrier. A scientist who wanted to determine how inflammation in the brain was occurring in a d. neuromuscular junctions. Which of the following is NOT characteristic of the sympathetic division of the autonomic nervous system? C) They are mitotic. D) stimulate the production of acetylcholine, Which of the following is not a function of the autonomic nervous system? B) short distance depolarization They have extreme longevity. Group C fibers are not capable of saltatory conduction. c. occipital lobe. Which of the following is NOT a function of astrocytes? a. Oligodendrocytes (a . 41. In myelinated axons the voltage-regulated sodium channels are concentrated at the nodes of Ranvier. (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? D) They can be called postsynaptic potentials. If the electrode is removed, a potential of zero is recorded again. : Question 35 1.5 pts Which of the following is not a special characteristic/property of neurons? b. thalamus. 30. Anatomy and Physiology questions and answers. Which of the following is correct? Schwann cells are functionally similar to ________. 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? 67. 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. B) If a motor neuron in the body were stimulated by an electrode placed about midpoint along the length of the axon ________. C) proteins have been resynthesized A) cholinesterase analyzes sensory information, stores information, makes decisions. What are the different classes of neurons and their functions? d. The person would have dulled senses for some period of time after taking the substance. 28. d. The cerebral cortex is found on the surface of the brain. d. it fills spaces in the brain. B) the Na ions have been pumped back into the cell A single type of channel will open, permitting simultaneous flow of sodium and potassium. B) amplitude of various sizes The axon c. The dendrites d. The Nissl bodies. What are ciliated CNS neuroglia that play an active role in moving the cerebrospinal fluid called? What type of motor neuron stimulates skeletal muscle fibers to contract by the excitation contraction mechanism? D) found in the retina of the eye, Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle? 56. Its cell body is in an autonomic ganglion outside the CNS. c. reticular formation. Discover and discuss the meaning of dendrites, axon, membrane polarization, membrane depolarization, and synapses. If a loud noise made you jump, which structure was most likely responsible for this When excited electrically, the Hg atoms emit UV light, which excites the phosphor coating of the inner tube, which then emits visible (white) light. c. Transcription factors inability to divide by mitosis long cell life span (longevity) high aerobic metabolic rate ability to survive in anaerobic (Uithout oxygen) conditions. They propel cellular components along microtubules. muscles throughout the body? (c) They have an exceptionally high metabolic rate. d. improve recovery from traumatic brain injury. Fill in the blank. a. reference memory. Which of the following is NOT characteristic of smooth muscle? b. d. ventral root. True or False, The overlapping functions of the nervous system are sensory input, integration, and motor output. 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). c. The cerebral cortex includes the cerebellum. Extrapyramidal side effects produced by antipsychotic drugs are similar to the symptoms of: C) Group B fibers are highly myelinated and have the highest conduction velocities. The characteristic neurologic picture including loss of consciousness, temporary respiratory arrest, and loss of reflexes. Which of the following is NOT a function or characteristic of neurons? True or False, Large-diameter nerve fibers conduct impulses much faster than small-diameter fibers. Specialized cells in the nervous system that control behavior, senses, and movement are called: a. neurons. a. midbrain. Events that occur during synaptic activity are listed here, but they are arranged in an incorrect order. D) ATP and other purines You'll get a detailed solution from a subject matter expert that helps you learn core concepts. c. a ventricle. Name the two other neuron types which are cholinergic. It also affects your cerebellum, the part of your brain that controls movement and balance. Myelination of the nerve fibers in the central nervous system is the job of the oligodendrocyte. What are the different types of motor neurons? a. Preganglionic neurons tend to be long, with the ganglion located in or near the effector target tissue (s). C) action potential True or False, Unipolar neurons have axons structurally divided into peripheral and central processes. 23. B) cholinesterase B) negatively charged and contains less sodium 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. C) biogenic amine Which of the following describes the nervous system integrative function? 5. Which of the following is not true of graded potentials? 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. Schwann cells myelinate PNS axons. a. sensory neuron b. interneuron c. motor neuron d. gland e. muscle. Central Nervous System Which of the following portions of the neuron transmits neurotransmitters? D) gamma aminobutyric acid, Which of the following describes the nervous system integrative function? The oligodendrocytes can myelinate several axons, Cell bodies of sensory neurons may be located in ganglia lying outside the central nervous system, During depolarization, the inside of the neuron's membrane becomes less negative. Neurons: Calcium influx into the synaptic terminal causes vesicle fusion. C) destroy ACh a brief period after its release by the axon endings 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. 1. The interior is ________. Motorneurons release acetylcholine at: What parts of a neuron are completely contained within a ganglion? Large-diameter nerve fibers conduct impulses much faster than small-diameter fibers. B) are found on "pathfinder" neurons Tight junctions along blood vessels in the brain are formed by: b. they prevent axons from re-growing. 18. inability to divide by mitosis long cell life span (longevity) high aerobic metabolic rate ability to survive in anaerobic (Uithout oxygen) conditions. Which of the following is not characteristic of neurons? Nerve cell adhesion molecules (N-CAMs) ________. 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? c. The output (. All of the following describe functions for cerebrospinal fluid except: Which of the following are afferent neurons, relative to the central nervous system? Which of the following is not a structural feature of a neuron? d. hippocampus. After peripheral nerve injuries, damaged axons can regenerate but functional recovery is limited by the specific reinnervation of targets. Which of the following statements is incorrect? a. Amygdala 77. Which of the following describes the excitatory postsynaptic potential? b. Neurotransmitters Which of the following correctly describes a graded potential? b. autosomal chromosomes. A disease that destroyed astrocytes would be expected to: What is the long outgrowth of a neuron along which electrical impulses are transmitted? D. Involved in fast-acting body control. 11. The point where a motor neuron meets a muscle fiber is called the: adjacent axon segment. A substance that inhibits the activity of the cerebellum would be expected to: C) Sodium gates will open first, then close as potassium gates open. The comparison demonstrates that the suggested controller closely tracks the reference voltage than the . D) A small . Strong stimuli cause the amplitude of action potentials generated to increase. What symptoms would a nurse focus on in his or her care of a patient with multiple sclerosis? b. Axon and soma An inhibitory postsynaptic potential (IPSP) is associated with ________. A. astrocytes B. ependymal cells C. microglia D. Schwann cells, Which of the following options is correct? Which of the following types of glial cells monitors the health of neurons, and can transform into a special type of macrophage to protect endangered neurons? C) sensory neurons that convey information from somatic receptors in the head, body wall, and limbs and from receptors from the special senses of vision, hearing, taste, and smell to the CNS A. Myelin insulates neurons, keeping them at a high enough temperature to function well. What are the different types of neurons in the ANS and where are they located? B. Myelin prevents the conduction of electricity from the axon hillock to the axon terminal. a. efferent neuron b. afferent neuron c. association neuron d. glial cell, Which of the following is not characteristic of neurons? a. forebrain. Neurons require continuous and abundant supplies of oxygen, and cannot survive for more than a few minutes without it. c. Oligodendrocytes However, the electrical impulse cannot pass directly from a nerve cell to the skeletal muscle cells to excite them. Answer: Option D is correct Explanation: Neurons generally do not e . C) opening of voltage-regulated channels c. meninges. Which nerve cells carry impulses from the brain to the muscles? 19. D) They have an exceptionally high metabolic rate. formation. 39. The majority of these axonal knobs are shown to be "firing." D) Schwann cells, Schwann cells are functionally similar to ________. b. polymorphism. Two subtypes of motor neurons have been identified: inferior and superior. 31) Neurons may be classified according to several characteristics. a. Sensory neurons. - Neurons have one or more long, slender projections called dendrites, which receive electrical impulses from other neurons. c. basal ganglia. What are the small lower motor neurons that innervate intrafusal muscle fibers that are part of specialized stretch receptors called? What are the possible responses? Which of the following is correct? a. d. prefrontal cortex. Estimate the mass of Hg vapor present in the type of long, thin fluorescent tubes used in offices. The principles outlined above can be applied to the neuron and its ionic contents.. having a low appetite. 73. (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 . c. basal ganglia. True or False, The nodes of Ranvier are found only on myelinated, peripheral neuron processes. A neuron that has as its primary function the job of connecting other neurons is called a(n) ________. c. synapses. C) frequency of action potentials a. temporal lobe. What are the advantages and disadvantages of Europe's communications systems? An experimental drug that reduces the release of chemicals that inhibit axon growth may: Preganglionic neurons are short and synapse in ganglia located near the spinal cord. a. Pupil dilation a.) D) positively charged and contains more sodium. B) analyzes sensory information, stores information, makes decisions 13. b. transcription factors. b. thalamus. The nervous system most dominant while relaxing is the: Which of the following will occur when an excitatory postsynaptic potential (EPSP) is being generated on the dendritic membrane? The cerebellum is located in the: a. Neurons communicate with other neurons in the central nervous system. Which of the following is NOT characteristic of the sympathetic division of the autonomic nervous system? Which nervous sytem is responsible for delivering voluntary motor signals from the CNS to Motor has two divisions: the somatic and autonomic. The latter from the brain to the spinal cord. b. cerebellum. 58. Group of answer choices: Neuroglia refer to neurons with axons coated in myelin. D. They have an exceptionally high metabolic rate., These cells in the CNS have cilia that move in order to circulate cerebrospinal fluid ________. If a neuroscientist stated that a brain structure had efferent neurons, what can be concluded? d. at the axon terminal. c. sensory and motor neurons that su. . High metabolic rate. c. neurons. 55. c. Motor neurons. d. Parkinson's disease. The patient has a polymorphism that slow metabolism of a drug. B) dendrite Similar to hormones, NO and CO promote longer-lasting effects by acting through intracellular second-messenger molecules. a. that a person will have a polymorphism. These cells have a star-like shape and a central body that contains the . 22. threshold Voltage-gated Na+ Its structure is multipolar. b. Microglial cells 54. c. working memory. In what way does the interior surface of a cell membrane of a resting (nonconducting) neuron differ from the external environment? group cfibers are not capable of salatory conduction. b. astrocytes respond to injury. Different types of neurons include sensory, motor, and interneurons, as well as structurally-based neurons, which include unipolar, multipolar, bipolar, and pseudo-unipolar neurons. Be The parts of neurons that receive information from other neurons are called: 4. 2. All other trademarks and copyrights are the property of their respective owners. Experts are tested by Chegg as specialists in their subject area. The part of a neuron that conducts impulses away from its cell body is called a(n) ________. The prefrontal cortex is important for working memory function. Immediately after an action potential has peaked, which cellular gates open? C) microglia However, the resting membrane potential in three types of neurons was not significantly different in the present study; therefore the 5-HT . The pons is activated when someone startles. b. Epigenetics ce3z/(4zi)3dz_ce^{3z}/(4z-i)^3dz c. Neuromuscular junction Motor afferent neurons possess long dendrites and short axons. kg 1), . c. reduced oxygen delivery to cells. 52. A) mechanically gated channel c. Myasthenia Gravis. Which of the following statements is true? What is the function of dendrites in a neuron? d. touch information. B) anchor neurons to blood vessels All of the following describe the functions of astrocytes except: D) tracts, The term central nervous system refers to the ________. The function of neurons is to communicate information from one part of the body to other parts. The basal ganglia act to stabilize voluntary movements. 13. This disease causes gradual muscle stiffness . Which of the choices below describes the ANS? 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? d. astrocytes. C) They can be called postsynaptic potentials. B. 1. Cell bodies of sensory neurons may be located in ganglia lying outside the central nervous system. 14. The landscaping business for the area totaled about$1,340,000 for the year. 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 . B) They have extreme longevity. b. the person has a disease that affects myelin around axons. 78. c. afferent neuron. d. increase the density of dendritic spines. Increased diameter results in increased surface area on the membrane for sodium channels. b. medulla. Select the correct statement regarding synapses. d . 40. A) They conduct impulses. People throughout history (has, have) been fascinated by the moon. (a) They conduct impulses. What is the role of acetylcholinesterase? The characteristics that vary on a continuum among people, such as height, skin color, or intelligence, are most likely determined by polygenic inheritance. c. Dendrites and soma A) efferent neuron D) absolute refractory period. b. cingulate cortex. b. Medulla B) Specific potassium gates will open. Answer: They are constantly dividing Explanation: Neurons are like different cells in the body on the grounds that: Neurons are encircled by a cell . A neuron was found to originate in the hippocampus and terminate in the prefrontal cortex. They conduct impulses. c. Astrocytes Choose the correct order of these events below. In terms of function, scientists classify neurons into three broad types: sensory .
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