The structure that allows for fast transmission of the action potential

Question Answered step-by-step The structure that allows for fast transmission of the action potentialis A. The axon B. The dendrites C. Myelin sheath D. Nodes of Ranvier E. Cell body CSF fluid circulates within the: A. Blood plasma B. Interstitial space C. Ventricles of the brain D. Axon E. Cell body of a neuron The nervous system consists of: A. The autonomic nervous system   B. The brain and the spinal cord C. The central nervous and the peripheral nervous systems D. The spinal cord and peripheral nerves E. The sympathetic and parasympathetic nervous systems  The sympathetic division of the autonomic nervous system causes: A. Increased HR, increased RR, increased BP, decreased digestion B. Decreased HR, decreased RR, lower BP, decreased digestion C. Increased HR, deeper RR, Increased BP, increased digestion D. Increased HR, increased RR, increased BP, increased digestion E. Increased HR, increased RR, decreased BP, decreased digestion   The neurotransmitter that stimulates muscle cells to contract is:   A. Adrenaline B. Cholinesterase C. Dopamine D. Acetylcholine E. Adrenalin   To commence an action potential, the nerve axon must become permeable to: A. Oxygen B. Magnesium C. Chloride D. ATP E. Sodium Nerve impulses are transmitted to the CNS on: A. Motor, efferent pathways B. Motor, afferent pathways C. Sensory, afferent pathways D. Sensory, efferent pathways E. Sensory and motor interneuron pathways   Which part of the brain is responsible for controlling breathing? A. Cerebrum B. Cerebellum C. Brain stem D. Diencephalon E. Ventricles Signs and symptoms of a stroke include: A. Chest pain, sweating, hemiparesis, pallor B. Visual disturbance, frequency, SOB, vomiting C. Chest pain, pallor, weak pulse, headache D. Hemiparesis, dysphasia, headache, visual disturbance E. Chest pain, nausea, dysphasia, headache Neuropathy: A. Is one of the major causes of a stroke B. Damage to or disease affecting brain cells C. Damage to or disease affecting nerve function D. Is the study of nerves E. Is an inherited disorder that causes demyelination of nerves  Parkinson’s disease causes these signs and symptoms: A. Feeling dizzy when standing, bradykinesia, muscle relaxation B. Inability to control bladder, tremor, nausea and vomiting C. Inability to control bladder, decreased muscle tone, headache D. Tremor, bradykinesia, muscle rigidity E. Fatigue, bradykinesia, muscle relaxation   The best explanation as to why bleeding in the epidural and subdural space in the brain is a serious medical issue is: A. the loss of blood can lead to haemorrhagic shock B. the loss of blood can lead to haemorrhagic anaemia C. the build‐up of blood causes pressure which damages brain cells D. the loss of blood causes a huge drop in blood pressure E. the loss of circulating blood causes brain cells to die  Damage in or to the left side of the brain affects: A. the entire body B. the left side of the body C. the right side of the body D. the lower extremities E. blood pressure Multiple sclerosis is a disorder that causes: A. degeneration of the muscles B. rigidity, bradykinesia and tremor C. excess dopamine production by the neurons in the brain D. destruction of the myelin sheaths   E. a reduction in the number of dopamine producing neurons in the brain Which of the following statements is NOT true about a Transient Ischaemic Attack (TIA)? A. It occurs in the brain B. It always causes death of brain cells C. It is a temporary reduction in blood flow to an area of the brain which lasts less than 24 hours D. It has symptoms similar to a stroke   E. It is due to blockage of a blood vessel       Health Science Science Nursing HEALTH HLT54115 Share QuestionEmailCopy link Comments (0)