ch 9, 15, 19, 20
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| what are the respiratory components of the medulla oblongata | show 🗑
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| what are the pontine resp. centers? | show 🗑
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| the drgs consist of mostly | show 🗑
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| show | central chemoreceptors, peripheral chemoreceptors, stretch receptors, peripheral proprioceptors and higher brain centers
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| what can cause a temp. cessation of breathing | show 🗑
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| show | CO2 molecules
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| when the blood pressure increases the aortic bodies and carotid bodies initiate reflexes that cause what? | show 🗑
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| show | low PaO2 (60 mmhg) SaO2 90%
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| show | low PO2,decreased pH,increased PCO2 and increase temperature
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| show | peripherial vasoconstrictin, increased pulmonary vascular resistance, systemic arterial hypertension, tachycardia, and left ventricular performance
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| when are the peripheral chemoreceptors suppresed? | show 🗑
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| where are the peripheral chemoreceptors located? | show 🗑
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| what are the reflexes that influence ventilation? | show 🗑
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| periferal proprioceptor reflexes | show 🗑
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| where are the periferal properioceptors located | show 🗑
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| cortical controls | show 🗑
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| what is the role of cerebral cortex in regulation of ventilation | show 🗑
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| show | glossopharyngeal nerve (9 cranial nerve) & the vagus nerve (10 cranial nerve)
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| show | vagus nerve
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| show | glossopharyngeal nerve
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| what is the most powerful stimulus known to influence the resp components of the medulla | show 🗑
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| show | called the inflation reflex; via the vagus nerve, a reflex triggered to prevent over-inflation of the lungs; causes inspiration to cease.
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| where is the hering-breuer reflex located | show 🗑
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| juxtapulmonary-capillary receptors | show 🗑
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| what stimulations the j receptors | show 🗑
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| show | decreased vent and heart rate
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| hypothalamic controls | show 🗑
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| what factors cause an increase pulmonary vascular resistance | show 🗑
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| show | OXYGEN, calcium-channel blocking agents, acetylcholine, bradykinin
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| what factors increase systemic vascular resistance? | show 🗑
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| show | nitroglyverin, morphine, septic shock (early stages), increased PCO2
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| show | pulmonary emboli, tumor mass, emphysema, pneumothorax
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| show | preload, afterload, and myocardial contractility
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| show | volume of blood ejected by the ventricles with each contraction
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| show | sv= CO/HR= beats/min
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| which hemodynamic values are measured? | show 🗑
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| show | strok volume, stroke volume index, cardiac index, systemic vascular resistance, pulmonary vascular restistance, right ventricle stroke work index, left ventricle stroke work index
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| what is the normal range for central venous pressure? | show 🗑
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| show | 0-8 mmhg
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| show | 4-8 l/min
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| show | 9-18 mmhg
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| normal range for pcwp | show 🗑
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| normal range for stroke volume | show 🗑
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| normal range for SVI | show 🗑
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| normal range for cardiac index | show 🗑
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| normal range for RVSWI | show 🗑
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| normal range for LVSWI | show 🗑
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| normal range for PVR | show 🗑
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| show | 800-1500 dynes.sec.cm^ -5
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| show | 1.5-2 m^2
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| show | SVI= SV/BSA
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| show | PVR
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| what is the calc measure the afterload of the left ventricle | show 🗑
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| show | study of forces that influence the circulation of blood
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| SVI reflects | show 🗑
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| what is the cardiac index | show 🗑
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| show | CI= CO/BSA
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| what factors will increase SV,CO,RVSWI,LVSWI? | show 🗑
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| what factors will DECREASE SV,CO, RVSWI, LVSWI? | show 🗑
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| show | PVR= (PA-PCWP/CO)x 80
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| SVR | show 🗑
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| show | RVSWI= SVI*(PA-CVP)*0.0136
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| show | LVSWI=SVI*(MAP-PCWP)*0.0136
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| at what altitude is the barometric pressure approx half of the sea level value | show 🗑
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| is the O2 diffusion capacity of high altitude natives higher or lower than low landers? by how much? | show 🗑
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| what are the symptoms of acute mountain sickness | show 🗑
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