CSS :: Respiratory System
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| 71. |
Which of the following statements is correct: |
| A. |
All animals require a medium for cellular respiration |
B. |
In all animals oxygen is transported by blood |
| C. |
All animals take O2 from water or air through gills of lungs |
D. |
All animals need oxygen for respiration |
Answer: Option A
Explanation:
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| 72. |
Even when there is no air in it, the human tracheal walls do not collapse due to: |
| A. |
Furgid pressure |
B. |
Presence of cartilagenous |
| C. |
Presence of chitinous rings |
D. |
Presence of bony rings |
Answer: Option B
Explanation:
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| 73. |
Which of these contains vocal cords: |
| A. |
Larynx |
B. |
Pharynx |
| C. |
Glottis |
D. |
Bronchial tube |
Answer: Option A
Explanation:
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| 74. |
Respiration in rabbit is helped by: |
| A. |
Pelvic girdle |
B. |
Intercostal muscles |
| C. |
Biceps muslces |
D. |
None of these |
Answer: Option B
Explanation:
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| 75. |
In frog, glottis is controlled by muscles of: |
| A. |
Vocal cords |
B. |
Sternum |
| C. |
Arytenoid cartilages |
D. |
Pectoral girdle |
Answer: Option C
Explanation:
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