HCR240 LESSON 4 QUESTION AND CORRECT ANSWERS. GRADED A+

which of the following? Cheyne-Stokes Ataxic Central neurogenic Normal 3 of 40 The most common type of brain tumor in children is neuroblastoma. astrocytoma. meningioma. glioma. 4 of 40 A cell that is involved in forming the blood-brain barrier is which of the following? Microglia Schwann cell Oligodendrocyte Astrocyte 5 of 40 Which of the following would increase a person’s risk for thrombotic stroke? Hyperthyroidism Hypertension Anemia Dehydration 6 of 40 Motor neurons are structurally classified as _____ neurons. unipolar pseudounipolar bipolar multipolar 7 of 40 Regulation of body temperature primarily occurs in the cerebrum. brainstem. hypothalamus. pituitary gland. 8 of 40 Which system modulates a patient’s perception of pain? Sensory-discriminative system Affective-motivational system Cognitive-evaluative system Reticular-activating system 9 of 40 Viral meningitis is always sudden in onset. often occurs with measles, mumps, or herpes. is effectively treated with antibiotics. causes increased sugar in the CSF. 10 of 40 Which of the following diseases should a newborn be screened for? Epilepsy Tay-Sachs disease Pica Phenylketonuria (PKU) 11 of 40 The most common type of traumatic brain injury is penetrating trauma. diffuse axonal injury. focal brain injury. concussion. 12 of 40 Which of the following findings indicates the patient is having complications from heat stroke? Mild elevation of core body temperatures Cerebral edema and degeneration of the CNS Spasmodic cramping in the abdomen and extremities Alterations in calcium uptake 13 of 40 Which region of the brain is responsible for motor aspects of speech? Wernicke area Broca area Primary speech area Insula 14 of 40 Myasthenia gravis results from. viral infection of skeletal muscle. atrophy of motor neurons in the spinal cord. demyelination of skeletal motor neurons. autoimmune injury at the neuromuscular junction. 15 of 40 What nutrient should a woman consume in the early stages of pregnancy to prevent neural tube defects? Protein Iron Vitamin D Folic acid 16 of 40 Fungal meningitis most often occurs over the course of several months. in persons with impaired immune responses. from viral organisms. from Escherichia coli. 17 of 40 The somatic nervous system controls which of the following? The heart The spinal cord Skeletal muscle Smooth muscle organs 18 of 40 What part of the brain controls the reflex activities concerned with heart rate and blood pressure? Medulla oblongata Pons Midbrain Cerebrum 19 of 40 The _____ ensure(s) collateral blood flow from blood vessels supplying the brain. carotid arteries basal artery Circle of Willis vertebral arteries 20 of 40 The most common primary CNS tumors in adults are which of the following? Meningiomas Oligodendrogliomas Astrocytomas Ependymomas 21 of 40 Which neurotransmitter is released when the parasympathetic motor neurons are stimulated? Epinephrine Serotonin Acetylcholine Substance P 22 of 40 In what part of the brain is the primary visual cortex located? Frontal lobe Temporal lobe Occipital lobe Parietal lobe 23 of 40 An assessment sign of neuroblastoma is weight loss. irritability. fatigue. All of the above 24 of 40 Which of the following is one primary organ responsible for heat production? Pancreas Liver Adrenal gland Heart 25 of 40 Infants have problems with thermoregulation because they cannot conserve heat and do not shiver. rarely sweat. have decreased metabolic rates. have excess subcutaneous fat and minimal body hair. 26 of 40 Most causes of encephalitis are bacterial. viral. fungal. toxoid. 27 of 40 Neuroblastomas most frequently occur in which of the following? Retroperitoneal region Mediastinum Cervical ganglion Lung 28 of 40 Which of the following are neuroglial cells? Neuron, Melanocyte, Ganglion Oligodendrogliomas, Ependymomas, Meningiomas Axon, Nucleus, Myelin Astrocyte, Oligodendrocyte, Ependymal cell 29 of 40 When brain activity during sleep is similar to the normal awake pattern, which phase of sleep is occurring? Non-rapid eye movement (REM) Fast wave REM Delta wave 30 of 40 Most dreams occur during _____ sleep. Non-REM Alpha wave REM Delta wave 31 of 40 Hikers are attempting to cross the Arizona desert with a small supply of water. The temperatures cause them to sweat profusely and become dehydrated. The hikers are experiencing which of the following? Heat cramping Heat exhaustion Heat stroke Malignant hyperthermia 32 of 40 The most common type of cerebral palsy is ataxic. dystonic. spastic. mixed. 33 of 40 A patient has paralysis of both legs. What type of paralysis does the patient have? Paraplegia Quadriplegia Infraparaplegia Paresthesia 34 of 40 The most common cause of bacterial meningitis is which of the following? Haemophilus influenzae Neisseria meningitidis Streptococcus pneumonia Escherichia coli 35 of 40 Patients with myasthenia gravis often have tumors or pathologic changes in the brain. pancreas. thymus. lungs. 36 of 40 The percentage of retinoblastomas inherited as an autosomal dominant trait is ____. 20% 40% 100% 0% 37 of 40 _____ are most at risk of spinal cord injury from minor trauma. Infants Men Women The elderly 38 of 40 Heat loss from the body via evaporation occurs by which of the following? Evaporation of electromagnetic waves Transfer of heat through currents of liquids or gas Dilation of blood vessels bringing blood to skin surfaces Conversion of water from liquid to gas 39 of 40 When a person has a fever, which of the following thermoregulatory mechanisms is activated? The body’s thermostat is adjusted to a lower temperature. Temperature is raised above the set point. Bacteria directly stimulate peripheral thermogenesis. The body’s thermostat is reset to a higher level. 40 of 40 A major contributing process in CVAs is the development of atheromatous plaques in cerebral circulation. These most commonly form in which of the following locations? In the larger veins Near capillary sphincters In cerebral arteries In the venous sinuses [Show less]

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