Question

1.Air is warmed, moistened and filtered as it passes through the mouth A.True B.False 2.the mouth and nasal cavities meet at region of the body called the A. Nasal conchae B. Sinuses C. Pharynx D. Trachea 3.oxygen molecules bind to myoglobin molecules found in red blood cells A.True B.False 4.the cricoid cartilage is also know as the "Adams apple" A.True B.False

Answer 1

1.Answer is FALSE. When air is passed through mouth the air is moistened, but not filtered. Unlike nasal pathway the mouth don't have small & fine hairs so, filtration is not possible.

2. Answer is option- C. The mouth and nasal cavities meet at the region of body called Pharynx. And pharynx then leads to trachea and other sub respiratory tracks.

3.Answer is FALSE. In our body oxygen carrying molecule is hemoglobin present in RBC. Myoglobin is also an oxygen storing molecule but present in muscle cells.

4. Answer is FALSE. Circoid means circular, circoid cartilage is the ring like cartilage around the trachea. Adam's apple is also called as pharyngeal prominence.

The thyroid cartilage is below the hyoid bone, and circoid cartilage is present below the thyroid cartilage.and in male the thyroid cartilage gives rise to Adam's apple.