SPC Cardiopulmonary Physiology Unit 5 Exam 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What is the role of the cerebral cortex in regulation of ventilation? | show 🗑
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| show | Medullary Neurons
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| What are the 2 types of Medullary Neurons? | show 🗑
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| T/F DRG and VRG are named for their location? | show 🗑
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| show | Maintains normal ventilation rhythm
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| What is the purpose of VRG? | show 🗑
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| show | To "BOOST" inspiratory effort, aka "Gasping Center"
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| show | Gasping Center
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| What is the function of the Pneumotaxic Center? | show 🗑
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| Pneumotaxic Center is aka as what? | show 🗑
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| Which nerve innervates the carotid peripheral chemoreceptors? | show 🗑
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| Which nerve innervates the aortic peripheral chemoreceptors? | show 🗑
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| What is the chemical stimuli of the Peripheral Chemoreceptors? | show 🗑
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| Peripheral Chemoreceptors kick in when? | show 🗑
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| show | At CO2 tensions & low pH H+
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| What is the chemical stimuli of the Central Chemoreceptors? | show 🗑
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| show | VE increases 3L/m for each mmHg rise in PACO2
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| show | CO2
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| What are the factors which affect ventilatory response to CO2? | show 🗑
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| show | VE increase dramatically when PaO2 <60mmHg
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| show | Hypercapnia significantly augments the hypoxic response.
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| What is the ventilatory response to Hypoxia during Hypocapnia? | show 🗑
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| show | Acute Acidosis stimulates Peripheral Chemoreceptors & VE increases. The lower the pH, the greater the VE increases.
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| show | Hypocapnia diminishes the ventilatory response to acidosis
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| show | Hypercapnia intensifies the ventilatory response to acidosis
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| show | 7.32
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| The Blood-Brain barrier consists of what? | show 🗑
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| show | 1. (HCO3-) increases in CSF & the Central Chemoreceptors are obtunded
2. Low PaO2 stimulates the peripheral chemoreceptors establishing an Hypoxic drive
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| show | H+ stimulates the central & peripheral chemoreceptors causeing a Kussmaul's breathing pattern & PaCO2 drop into the 20's
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| What is Apneustic Breathing? | show 🗑
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| show | Brainstem injuries
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| show | 10-20 sec. periods of apnea followed by 3 to 5 identical volume breaths
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| show | Increased ICP
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| show | A "Crescendo-Decrescendo" ventilatory pattern
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| show | Heart failure or severe brain damage
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| show | A ventilatory pattern characterized by rapid, deep breathing
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| Kussmaul's breathing is caused by what? | show 🗑
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