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Fundamental Organisation Human Physiology Respiration - Questions and Answers

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11. The term mediastinum refers to the
A. Space between the two kidneys
B. Space between the two lungs
C. Space between the thorax and abdomen
D. Space between the pericardium and the heart
Explanation:
12. Which is posteriorly separated into trachea and oesophagus
A. Pharynx
B. Glottis
C. Epiglottis
D. Diaphragm
Explanation:
13. The larynx opens into the wind pipe through
A. Glottis
B. Epiglottis
C. Diaphragm
D. Sphincter
Explanation:
14. How many iron atoms present in a haemoglobin molecule?
A. Only one
B. Two
C. Three
D. Four
Explanation:
15. One of the following is not true in the process of expiration
A. Diaphragm becomes flattened
B. Thoracic cavity is reduced
C. Intra thoracic pressure increases
D. Lungs become compressed
Explanation:
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