7)Cardiovascular System Circuitry Quiz

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What is the primary function of the respiratory passage?

Removal of foreign particles

Filtration, conduction, moistening, and heating of air (correct)

Gas exchange

Ventilation of the lungs

What is the cardiac output (CO) at rest?

4900-5000 ml/min (correct)

70 ml x 70-80 beats/min

5 L/min

70 ml x 100 beats/min

Which of the following gases is transported from the alveoli to the blood?

Oxygen (correct)

Carbon dioxide

Water vapor

Nitrogen

What is the function of the mucociliary cells in the respiratory passage?

To trap foreign particles and expel them from the respiratory passage Signup and view all the answers

Why is the right primary bronchus wider and more vertical compared to the left?

To facilitate the removal of foreign bodies Signup and view all the answers

What is the purpose of the macrophages in the alveoli?

To scavenge bacteria and viruses Signup and view all the answers

What carries deoxygenated blood from the right ventricle?

Pulmonary arteries Signup and view all the answers

If the volume of a gas increases, what happens to its pressure according to Boyle's law?

The pressure decreases Signup and view all the answers

Which of the following membranes surrounds the lungs?

Both visceral and parietal pleura Signup and view all the answers

What is the normal intrapleural pressure at rest?

-4 mmHg or -5 mmHg Signup and view all the answers

What happens if one or both pleural membranes are punctured?

Pneumothorax occurs Signup and view all the answers

Which blood vessels carry oxygenated blood from the alveoli?

Pulmonary veins Signup and view all the answers

What does the acronym FRC stand for?

Functional Residual Capacity Signup and view all the answers

What is the approximate value of the Functional Residual Capacity (FRC)?

2300 ml Signup and view all the answers

What does the Vital Capacity (VC) consist of?

Inspiratory Reserve Volume, Tidal Volume, and Expiratory Reserve Volume Signup and view all the answers

What is the approximate value of the Total Lung Capacity (TLC)?

5800 ml Signup and view all the answers

What does the ratio FEV1/FVC represent?

Forced Expiratory Volume in one second divided by Forced Vital Capacity Signup and view all the answers

Where does the blood flow after passing through the right atrium?

Right ventricle Signup and view all the answers

What type of blood do the Vena Cavae sup and inf carry?

Venous blood (high CO₂) Signup and view all the answers

Which valve separates the left atrium from the left ventricle?

Mitral valve (bicuspid valve) Signup and view all the answers

What vessels constitute systemic circulation?

Systemic arteries Signup and view all the answers

Which part of the heart pumps blood to the lungs?

Right ventricle Signup and view all the answers

What is the term used to describe the rate at which blood is pumped from either ventricle?

Cardiac output (CO) Signup and view all the answers

What is the average Tidal Volume in an adult male?

500 mL Signup and view all the answers

How much extra volume of air can be inspired over and above the tidal volume with full force?

1100 mL Signup and view all the answers

What is the residual volume?

1200 mL Signup and view all the answers

What does Inspiratory Capacity (IC) equal to?

Tidal Volume + Inspiratory Reserve Volume Signup and view all the answers

How does smoking cessation at age 30 affect lifespan according to the text?

Lived as long as non-smokers Signup and view all the answers

What was surprising about men who stopped smoking before age 40?

They lived one year less than non-smokers Signup and view all the answers