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Walden PUBH6170 week 11 quiz




Question;Question 1Regulation of the production of breast milk, carbohydrate metabolism, and temperature control are some of the functions of the:Answerfrontal lobe.midbrain.medulla oblongata.thalamus.hypothalamus.1 points Question 2Oligodendrocytes are similar to Schwann cells in that they:Answerare a type of neuroglial cell.are located in the central nervous system.conduct nerve neurons regenerate after injury.are located in the peripheral nervous system.1 points Question 3The central nervous system is composed ofAnswerthe brain and spinal cordthe autonomic nervous system and brainthe somatic division and the autonomic divisionthe sensory division and the motor divisionthe somatic division and the motor division1 points Question 4A student noticed that every time he smelled a certain perfume in the hallway, it reminded him of his mother. This is due largely to the activity of the limbic system.AnswerTrueFalse1 points Question 5The functional barrier between blood and the brain is cerebrospinal fluid.AnswerTrueFalse1 points Question 6The two subdivisions of the nervous system are the central nervous system and the peripheral nervous system.AnswerTrueFalse1 points Question 7Which of the following is typical of spinal cord injuries?AnswerMost injuries involve the crushing of axons in the spinal cord.Swelling, caused by bleeding at the site of injury, results in damage to axons.Macrophages sometimes destroy healthy tissue near the site of injury as they attempt to clear the area of debris.Several weeks after the injury, fluid-filled cysts form, blocking nerve signals.all of the above1 points Question 8During periods of stress or increased activity, the parasympathetic division of the autonomic nervous system predominates, during periods of rest, the sympathetic division of the autonomic nervous system predominates.AnswerTrueFalse1 points Question 9The left and right sides of the cerebrum are interconnected by the:Answerpons.medulla oblongata.corpus callosum.thalamus.cerebral cortex.1 points Question 10Cells that provide direct protection and physical support to neurons areAnsweronly located in spinal fluid.found primarily in lymphatic fluid.are myelinated.neuroglial cells.Schwann cells1 points Question 11Which of the following is not true regarding the limbic system?AnswerIt controls emotional behavior.Stimulation of different areas of the limbic system results in feelings of fear, anger, or love.It includes pathways for the sense of smell.The midbrain serves as the gateway to and from the limbic system.Information from the limbic system is interpreted by the cerebrum.1 points Question 12During repolarization of a neuronAnswersodium channels close and potassium rushes out of the cell to temporarily re-establish the membrane potential.potassium channels close, preventing further loss of positive ions.the sodium-potassium pump is turned off.sodium channels open to allow sodium ions to rush back out of the cell.the membrane potential is eliminated.1 points Question 13Amyotrophic lateral sclerosis (ALS) is a disease that results from nerve damage in the:Answerbrain.diaphragm.intercostal muscles.spinal cord.sensory nerves.1 points Question 14Electrical impulses are transmitted between components of the central nervous system viaAnswerglial cellsmotor neuronssensory neuronsinterneuronsmacrophages1 points Question 15Excitatory neurotransmitters encourage the generation of new electrical impulses byAnswerstimulating saltatory conduction.stimulating depolarization of postsynaptic neurons.inhibiting postsynaptic neurons from repolarizing.inhibiting presynaptic neurons from depolarizing.stimulating depolarization of presynaptic neuorons


Paper#58395 | Written in 18-Jul-2015

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