Biology
Which of the following produces mucus in the respiratory passage?
- Ciliated cells
- Air sacs
- Goblet cells
- Tertiary bronchi
Related Questions
The protective membranous covering of lung is:
- Capsule
- Pericardium
- Epithelium
- Pleura
The muscular sheet which separates the thoracic and abdominal chamber of the human body is:
- Peritoneum
- Diaphragm
- Parietal pleura
- Visceral pleura
During inspiration in humans the diaphragm and external intercostal muscles:
- Both contract
- Contract and relax respectively
- Both relax
- Relax and contract respectively
Assertion (A): The product of combination of carbon dioxide and haemoglobin is termed as carboxyhaemoglobin.
Reason (R): RBCs carry carboxyhaemoglobin from the tissue cells to blood capillaries. Hence, carbon dioxide gas is exhaled out.
- A is True and R is False.
- A is false and R is True.
- Both A and R are True.
- Both A and R are False.