Respiratory Centers and Nerves Quiz

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Which nerve is responsible for autonomic control of breathing?

Sciatic nerve

Phrenic nerve

Vagus nerve (correct)

Femoral nerve

What is the function of pneumotaxic and apneustic centers?

Regulate heart rate

Adjust breathing (correct)

Aid in digestion

Control body temperature

Where are the irritant receptors located?

Smooth muscle of airway

Alveoli

Upper airway (correct)

Pulmonary capillaries

What do stretch receptors in the lungs respond to?

Volume of air in the lungs Signup and view all the answers

What is the function of j receptors located near capillaries in the alveoli?

Respond to increased pulmonary pressure Signup and view all the answers

Where are central chemoreceptors located?

In the brain near respiratory center Signup and view all the answers

What is the main function of peripheral chemoreceptors located in the carotid bodies?

Trigger increased respiratory rate in response to low oxygen levels Signup and view all the answers

In chronic hypercapnia seen in COPD, what is the primary response of the body?

Increase the rate and depth of respirations Signup and view all the answers

What is the purpose of the thick smooth muscle layer in the conducting bronchi of the lower respiratory tract?

To prevent collapses of the airways Signup and view all the answers

What best describes compliance in the context of lung physiology?

Ability of chest wall and lungs to stretch in response to pressure changes Signup and view all the answers

What happens during expiration in terms of ventilation?

Elastic recoil and gravity cause passive airflow Signup and view all the answers

What does the vq ratio represent in lung physiology?

Ratio of air reaching alveoli to blood reaching alveoli Signup and view all the answers

Respiratory Centers and Nerves Quiz

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Questions and Answers

Which nerve is responsible for autonomic control of breathing?

What is the function of pneumotaxic and apneustic centers?

Where are the irritant receptors located?

What do stretch receptors in the lungs respond to?

What is the function of j receptors located near capillaries in the alveoli?

Where are central chemoreceptors located?

What is the main function of peripheral chemoreceptors located in the carotid bodies?

In chronic hypercapnia seen in COPD, what is the primary response of the body?

What is the purpose of the thick smooth muscle layer in the conducting bronchi of the lower respiratory tract?

What best describes compliance in the context of lung physiology?

What happens during expiration in terms of ventilation?

What does the vq ratio represent in lung physiology?

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