Bryan Valdivia

verified

This problem has been solved

100% free to try

Question

11. A 35-year-old woman has anxiety-induced hyperventilation. She places a paper bag over her mouth and re-breathes the expired air. Re-breathing this air can increase arterial PCO$_2$ toward the normal range. Which of the following is the mechanism by which the increased PCO$_2$ will first be detected? O Central chemoreceptors responding directly to the increased arterial PCO$_2$ O Peripheral chemoreceptors responding directly to the increased arterial PCO$_2$ O Central chemoreceptors responding to increases in cerebrospinal PCO$_2$ O Peripheral chemoreceptors responding directly to the increased systemic venous PCO$_2$

          11. A 35-year-old woman has anxiety-induced hyperventilation. She places a paper bag over her mouth and re-breathes the expired air. Re-breathing this air can increase arterial PCO$_2$ toward the normal range. Which of the following is the mechanism by which the increased PCO$_2$ will first be detected?

O Central chemoreceptors responding directly to the increased arterial PCO$_2$
O Peripheral chemoreceptors responding directly to the increased arterial PCO$_2$
O Central chemoreceptors responding to increases in cerebrospinal PCO$_2$
O Peripheral chemoreceptors responding directly to the increased systemic venous PCO$_2$

Show more…

11 a 35 year old woman has anxiety induced hyperventilation she places a paper bag over her mouth and re breathes the expired air re breathing this air can increase arterial pco2 toward the 01464

Added by Ralph C.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Bryan Valdivia

12/28/2021

Step 1

Hyperventilation leads to a decrease in arterial PCO$_2$ (hypocapnia) because more CO$_2$ is exhaled than produced. To counteract this, the person re-breathes into a paper bag, which increases the inspired CO$_2$ and thus helps to raise arterial PCO$_2$ back Show more…

Show all steps

lock

Thanks for your feedback!

11. A 35-year-old woman has anxiety-induced hyperventilation. She places a paper bag over her mouth and re-breathes the expired air. Re-breathing this air can increase arterial PCO$_2$ toward the normal range. Which of the following is the mechanism by which the increased PCO$_2$ will first be detected? O Central chemoreceptors responding directly to the increased arterial PCO$_2$ O Peripheral chemoreceptors responding directly to the increased arterial PCO$_2$ O Central chemoreceptors responding to increases in cerebrospinal PCO$_2$ O Peripheral chemoreceptors responding directly to the increased systemic venous PCO$_2$

Play audio

Feedback

Powered by NumerAI

Bryan Valdivia and 67 other subject Biology educators are ready to help you.

Ask a new question

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Recommended Videos

Recommended Textbooks

Transcript

00:01 Okay, i'm going to answer this question.

00:01 Let's talk about gas exchange.

00:03 So let's suppose that this is your mouth, okay? and here you have your airways and you're going to get to your alveoli.

00:15 Okay, let's suppose it's your alveoli or the lungs in general.

00:18 So this is going to be your alveolus and here are going to have the pulmonary capillaries.

00:24 And gas exchange has to occur between these two compartments.

00:27 So normally the air that your breath is glitching oxygen.

00:30 So you're going to have a high alveolar pressure of oxygen and low levels of carbon dioxide.

00:38 But here, this is the venous side of the pulmonary capillaries.

00:43 That is going to be rich in carbon dioxide because this is the oxygenated blood.

00:47 So you're going to have high levels of carbon dioxide here, and you're going to have low levels of oxygen here.

00:56 So because gradients, because of gradient, oxygen is going to move in this direction.

01:01 From the arbiolus to the blood because of the amounts of oxygen that are higher here in comparison with this.

01:09 And carbon dioxide is going to move in an opposite direction.

01:12 So you're going to have that.

01:14 Here you're going to have a higher partial pressure of oxygen and a low levels of carbon dioxide...

Ace is your personal tutor. It breaks down any question with clear steps so you can learn.

Start Using Ace