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True/False: Cardiac muscle contraction is considered to be voluntary movement. -
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correct answer-False: It moves involuntarily
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True/False: In the gastrointestinal tract, smooth muscle is the major muscle type. -
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correct answer-True
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True/False: In our body, approximately 8 litres of intestinal juices are secreted into the GI
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tract daily, but only 100 ml of water is secreted into the faeces. - correct answer-True
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True/False: Normal movement of blood flow in the heart is: left atrium-left ventricle-lung-
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right atrium-right ventricle. - correct answer-False. Right atrium-right ventricle-lung-left
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atrium-left ventricle.
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True/False: Normally, humans have 2 lobes in the right lung and 3 lobes in the left lung. -
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correct answer-False. 3 lobes in the right lung and 2 lobes in the left lung.
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True/False: In the lung, gas exchange occurs mostly at the alveoli. - correct answer-True
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True/False: The urinary system is normally composed of two kidneys, two ureters and
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two bladders. - correct answer-False. Two kidneys, two ureters and one bladder.
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True/False: Filtered wastes from the glomerulus will move in the following order:
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Bowman's capsule-proximal tubule-distal tubule-loop of Henle-collecting duct. - correct
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answer-False. Bowman's capsule-proximal tubule- loop of Henle-distal tubule-
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collecting duct. n
True/False: Both endocrine and nervous systems play important roles in controlling the
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activities of many different organ systems to maintain homeostasis. - correct answer-
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True
True/False: Specificity of hormone action in the target cells is determined by receptors. -
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correct answer-True
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True/False: The area of nerve axon not wrapped by myelin sheath (non-myelinated
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area) is called nodes of Ranvier where action potential is insulated. - correct answer-
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False. Myelin sheath insulates action potential. Action potential propagates faster by
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skipping myelinated axon, and jumping from nodes of Ranvier to another node.
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What chemical component of the plasma membrane prevents ions from readily and
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freely moving across the membrane?
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