A severe tremor in someone's hands could be caused by abnormal functioning in the: B) They have extreme longevity. ________ potentials are short-lived, local changes in membrane potential that can be either depolarized or hyperpolarized. c. in the synapse. Which of the following is not a function of the autonomic nervous system? Specific instructions that encode for traits are called: What does myelin do for neurons? C) An excitatory postsynaptic potential occurs if the excitatory effect is greater than the inhibitory effect but less than threshold. B) short distance depolarization The parasympathetic nervous system prepares the body for rigorous activity. a. Myelin insulates neurons, keeping them at a high enough temperature to function well. D) biogenic amine, A neuron that has as its primary function the job of connecting other neurons is called a(n) ________. 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. b. Neurotrophins High metabolic rate. C) They have an exceptionally high metabolic rate. Friedreich's ataxia is a rare disease that affects your central nervous system. Indicate the number of orbitals in the 6p sublevel. Just from looking down a microscope, however, it becomes very clear that not all neurons are the same. b. inhibit axon growth. a.) What market share did Mountainside have? They are robust signaling cells. B) amplitude of various sizes What portion of the neuron receives signals from other neurons? If a drug severely depressed the functioning of the medulla, which of the following might be d. support and brace neurons. b. polymorphism. c. M2 Describe which neurons are considered cholinergic in both the parasympathetic and sympathetic divisions. Answer: They are constantly dividing Explanation: Neurons are like different cells in the body on the grounds that: Neurons are encircled by a cell . The person may have an increase in heart rate. C) oligodendrocytes c. gamma aminobutyric. c. a Mendelian disease. The cells communicate by sending signals between different parts of the brain, and the neurons can interface with gray matter nuclei. 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. b. a Mendelian disease. Which division of your nervous system is generating this response? Some ions are prevented from moving down their concentration gradients by ATP-driven pumps. C) ganglia B. Skeletal muscles store nutrient reserves. 68. A) sodium b) Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons. What is a credit line? 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 Motor. b. the person has a disease that affects myelin around axons. 15. d. represent a general decline of autonomic nervous system activity. This area is also known as the soma or perikaryon. It stores energy reserves. Psych 4035 Ch 3 Practice and Reading Quizzes, David N. Shier, Jackie L. Butler, Ricki Lewis, Charles Welsh, Cynthia Prentice-Craver, David Shier, Jackie Butler, Ricki Lewis, Chapter 3 Formatting Documents- Val Caylor. First, consider an object with an initial position x0x_0x0, an initial velocity v0v_0v0, and an acceleration aaa. Melatonin is released from the: c. Dendrites and soma Which type of microglial cells promote inflammation? B) They have extreme longevity.C) They are mitotic. B) the Na ions have been pumped back into the cell b. Interneurons. She asks the nurse,"Why did this have to happen to me again? The inhibitory extracelluar matrix consists of chemicals that: A. ependymal cells B. Schwann cells C . E) nucleic acid. 20. C) They are mitotic. If a neuroscientist described a structure as more lateral to a particular area, this means that: a. True or False, The action potential is caused by permeability changes in the plasma membrane. 49. 10. 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 . 100% (3 ratings) Which of the following is NOT a characteristic of neurons? Two subtypes of motor neurons have been identified: inferior and superior. a. B) oligodendrocytes Begin by sketching the contour. The synaptic cleft b. 74. Anatomy and Physiology questions and answers. They have extreme longevity. B) hyperpolarization 57. order to draw a diagram in her notebook. c. Motor efferent neurons possess long dendrites and short axons. What is the function of dendrites in a neuron? a. basal ganglia What parts of a neuron are completely contained within a ganglion? A) resting period In what way does the interior surface of a cell membrane of a resting (nonconducting) neuron differ from the external environment? Contains lymphatic vessel. Traub et al. Which of the following is NOT a characteristic of the parasympathetic division? D) They have an exceptionally high metabolic rate. The importance of a stimulus is derived from the number of stimuli received from the same source. Enkephalins and endorphins are peptides that act like morphine. For skeletal muscle cells to contract, they must be excited by motor neurons. C) depolarization Characteristics of the Neuron. The midbrain contains the: a. inhibit the production of neurotrophins. The person may have constricted pupils. c. the structure is further out to the side of the brain. What mechanism is responsible for axonal transport? A) They conduct impulses. What do neurons synapse with? When a sensory neuron is excited by some form of energy, the resulting graded potential is called a(n) ________. Imagine a neuron that has several hundred axonal knobs impinging on it. 70. The substance released at axon terminals to propagate a nervous impulse is called a(n) ________. Motor has two divisions: the somatic and autonomic. C. Afferent. a. norepinephrine. 3. What are the advantages and disadvantages of Europe's communications systems? d. cerebellum. The cell bodies of the upper motor neurons are located in the spinal cord B. Which of the following is correct? b. Pons 2. A. neuronal fibers; axons B. axons; dendrites C. dendr. Question. b. Microglial cells Neurons are located both in the CNS and on the periphery. Schwann cells myelinate PNS axons. A substance that inhibits the activity of the cerebellum would be expected to: Describe the structure of neurons 2. E) guide the migration of young neurons, synapse formation, and helping to determine capillary permeability. ________ is a disease that gradually destroys the myelin sheaths of neurons in the CNS, particularly in young adults. d. acetylcholine. C) are crucial in the production of neurotransmitters d. astrocytes. Which of the following lists the components found in a synapse? d) There, In order for skeletal muscle cells to contract, they must be excited by motor neurons. c. a ventricle. A. they produce neurotransmitters B. they lack neurotransmitter receptors C. they receive communication from other neurons D. they slow down the action potential. It is the main component of the nervous system- both the central nervous and peripheral nervous system. Generally, these traits are not determined by just one gene, but instead by the cumulative effect . c. afferent neuron. Briefly describe 6 effects this division has on the body. 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. What is the direct role of neurotransmitter at a chemical synapse? b. on the soma. 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 ________. View the full answer. c. olfactory information. Its structure is multipolar. C) anchor neurons to blood vessels 14. What are the functional classifications of neurons? An anesthetic protocol allowing electrophysiological singleunit recordings from inhibitory, presumably GABAergic PC interneurons in vivo is developed and may be useful for evaluation of PC neurons in kindled rats. c. The cerebral cortex includes the cerebellum. A) the myelin sheath The latter from the brain to the spinal cord. d. Sympathetic ganglion, 24. A) a change in sodium ion permeability A) axon B) dendrite C) neurolemma DI) Schwann cell. Which of the following statements is true of both membrane potential responses shown in the graphs? c. lead to foreign substances entering the brain from the circulatory system. Which of the following statements regarding nervous tissue is not true? 1. The human body is made of about 100 billion neurons. Extrapyramidal side effects produced by antipsychotic drugs are similar to the symptoms of: c. reticular formation. A) Sensory neuron B) Motor neuron C) Interneuron D) All of the above. b. efferent neuron. c. neurotrophins. a. increase the activity of postganglionic sympathetic neurons. A) Ions always move actively across membranes through leakage channels. b. smooth muscle cells are uninucleated. a. periaqueductal gray. Which of the following is not a function of the autonomic nervous system? B. axon. A) acetycholine 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. somatic nervous system. 43. Neuroglia perform supportive functions in the brain. a. Axons b. Neurons c. Neuroglia d. Synapses e. Type A fibers, Which of the following parts of a neuron contain excitable membranes? Why does injection of a local anesthetic into a finger still cause a loss of the sensation of touch from the finger? (a) Voltage-gated calcium channels open (b) Neurotransmitter binds to receptors (c) Action potential arrives at axon terminal (d) Neurotransmitter is removed from the synaptic cleft (e) Neurotransmitter released into synaptic cleft (f) Graded potential generated in postsynaptic cell, (c) Action potential arrives at axon terminal (a) Voltage-gated calcium channels open (e) Neurotransmitter released into synaptic cleft (b) Neurotransmitter binds to receptors (f) Graded potential generated in postsynaptic cell (d) Neurotransmitter is removed from the synaptic cleft. The hills on the surface of the brain are referred to as: (a) hardened cells and neurons (b) neurons and supporting cells (c) chondrocytes and neurons (d) neuronocytes and smooth muscle cells. Identify the neuron type described: Two functional neuron types that are structurally multipolar neurons. During depolarization, the inside of the neuron's membrane becomes less negative. b. transcription factors. b) Neurological cells protect and support neurons. March 17, 2022. c. neurons. b. sulci. motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands. b. (organalle) inside them, which is necessary to formation of mitotic. c. decrease anxiety. A) axon D. Skeletal muscles supports the weight of some internal organs. certain disorder would most likely investigate which of the following? c. striations present are due to the orderly arrangement of actin and myosin. b. c. medulla a. decrease a neurons's aerobic energy metabolism. b. auditory information. B) muscle contraction would occur 80. They have long fibers from CNS to ganglion. c) Neurons are the most abundant type of cell in nervous tissue.
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