Question

Read the following statements.

(A) Adam's apple in man is formed by thyroid cartilage
(B) The maximum volume of air a person can breathe in after forced expiration is vital capacity
(C) About 20-25 percentage of CO${}_2$ is transported as carbamino haemoglobin.
(D) Pneumotaxic centre lies in pons

Choose the correct statements among the given statements.

• A. A
• B. A, B
• C. A, C, D
• D. A, B, C, D

Answer 1

Answer: (D)

A, B, C, D

• Adam's apple in man is formed by the thyroid cartilage which surrounds the larynx.
• In blood CO${}_2$ is transported in three ways, dissolved carbon dioxide which accounts for about 5% of the total carbon dioxide, carbamino hemoglobin, which accounts for about 20-25% of the carbon dioxide carried from the tissues and bicarbonate which account for about 60-65% of total carbon dioxide.
• Pneumotaxic center in pons coordinates the speed of inhalation and exhalation, sends inhibitory impulses to the inspiratory area and is involved in fine-tuning of respiration rate.
• Vital Capacity (VC) is the maximum volume of air that can be exhaled following a deep inspiration.

Thus, the correct answer is option D.