Which of the following statements is true? There are two lung lobes in the right

Question

Which of the following statements is true? There are two lung lobes in the right lung and 3 lung lobes in the lef lung. B While inhaling, the diaphragm contracts and rises in the rib cage hile exhaling, the diaphragm contracts and is lowered in the rib cage. The pleura secretes the pleural fluid which reduces friction between the lungs and the chest wall during breathing. Question 95 Which of the following statements is true? Pulmonary emphysema, asthma and chronic bronchitis are chronic obstructive pulmonary diseases. Tuberculosis is a viral discase which hits mainly the lungs. Smoking is a protective factor against lung cancer The pharynx contains the vocal chords B

Explanation / Answer

94.
Answer: B . THe contraction of diaphragm raises and expands the rib cage, this aids inhalation.

The right lung has 3 lobs and the left has 2.
The ppleural fluid is secreated by serous membrane lining the pleura. It does help in reducing the friction between lungs and chest wall.

95
Answer: A.

The tuberculosis is caused by a bacteria, mycobacterium tuberculosis.
Smoking causes cancer, especially lung cancer.
The vocal cords are present in Larynx and not in pharynx.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.