Air directly enters the tracheae via the
external nares
pharynx
larynx
bronchi
- The oxygen pressure in the alveolar air is
- The maximum volume of inspirable air is called
- The medullary inspiratory centre is always under direct control of
- The condition in which the body suffers from acute oxygen shortage is called
- Oxygen will diffuse through a membrane only if it is
- In response to high altitude hypoxia supply of oxygen to the tissue is maintained by
- The rate and depth of breathing is primarily controlled by medulla by
- Diaphragm is characteristic of
- Anoxia means
- In a man at rest the body's cells consume approximately
- The vibrations of which of these membranes produces vocal sounds?
- Colour of oxyhaemoglobin is
- Oxygen is transported to every cell of the body through
- Ciliated epithelium in the trachea of mammals helps in
- The substances undergoing slow oxidation in the body during respiration are known as
- The functional unit of the lung is
- Which of the following can respire in total absence of air (anoxyliosis)?
- The respiratory portion of the respiratory tract consists of
- Internal respiration refers to
- The membrane covering the lungs is
- Emphysema is a respiratory disease in which
- In rabbits, respiration takes place in
- The capacity of lungs for air in a healthy man is about
- During inspiration in mammals, the diaphragm shall
- The metal associated with haemoglobin is
- Among the following, the maximum amount of usable energy is released per-molecule of glucose by
- Air directly enters the tracheae via the
- The "mountain sickness" in persons climbing to high attitudes without the aid of oxygen cylinders is…
- To take air into the lungs, the diaphragmmust be
- In frog, the alveoli are surrounded by