Human Body Systems

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10 Questions

In pneumonia, air passages in the lungs are not obstructed.

False

90% of the lung's capacity is affected by the obstruction in pneumonia.

True

The blood flows to the entire lung and not to a part of it.

False

Pneumonia is a condition where the air passages in the lungs are fully open.

False

The blood flow to the lung is not affected in pneumonia.

False

Pneumonia affects only a small part of the lung's capacity.

False

The lung's capacity is completely unaffected in pneumonia.

False

In pneumonia, the blood flow is normal and unaffected.

False

Pneumonia causes a complete blockage of the air passages in the lungs.

False

Pneumonia is a condition where the blood flow to the lung is normal.

False

Study Notes

Respiratory System

  • The respiratory system helps maintain fluid balance in the body and humidifies the air we breathe.

Voice Production

  • The respiratory system plays a role in voice production.

Dust Removal

  • The respiratory system helps remove dust particles stuck to the moist lining of airways.

Breathing Rate

  • We breathe approximately 6 liters of air per minute.
  • At rest, men breathe approximately 12 times per minute.
  • At rest, women breathe approximately 20 times per minute.
  • At rest, infants breathe approximately 60 times per minute.

Air Composition

  • The air we inspire is approximately 80% N2 and 20% O2.

Oxygen and CO2 Diffusion

  • Oxygen diffuses from the alveolus into the red blood cells.
  • CO2 diffuses from the blood into the air in the alveoli.

Ventilation

  • Ventilation involves getting air to the alveolar surface.
  • Ventilation can be obstructed in conditions like pneumonia, affecting approximately 90% of lung capacity.

Blood Flow

  • Blood flows through the pulmonary capillaries surrounding the alveoli, allowing for gas exchange.

This quiz covers the functions of human body systems, including balance of fluids, respiration, and voice production.

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