During strenuous exercise, a trained athlete can maintain a much higher alveolar ventilation compared to an untrained individual. Which physiological adaptation contributes LEAST to this enhanced ventilation?
Increased strength and endurance of respiratory muscles
Increased vital capacity
Increased diffusion capacity of the lungs
Increased residual volume
Related Questions
Lungs comprises
Network of bronchi
Bronchioles
Alveoli
All of these
Which of the following statement is true regarding the human respiratory system?
Tracheal rings are of hyaline cartilage
Dorsal side of the thoracic chamber is formed by sternum
Expiration occurs when there is negative pressure in the lungs
Inspiration occurs when there is positive pressure in the lungs
Trachea is a straight tube extending up to the mid – thoracic cavity, which divides at the level of
fifth thoracic vertebra into right and left bronchi
third lumbar vertebra into right and left bronchi
fifth thoracic vertebra into right and left bronchiole
last thoracic vertebra into right and left bronchi
The primary chemical stimulus for breathing is:
Oxygen concentration
Carbon dioxide concentration
Nitrogen concentration
Hydrogen ion concentration in blood
The volume of air remaining in the lungs after a forceful expiration is called:
Tidal Volume
Expiratory Reserve Volume
Residual Volume
Inspiratory Reserve Volume
Right lung of rabbit is divided into
Four lobes
Two lobes
Six lobes
Eight lobes
Layer of uneven columnar cells from tracheal lining are composite
Brush border epithelium
Stratified epithelium
Pseudostratified epithelium
ciliated epithelium
Identify the different parts of the respiratory system in accordance to their location given below
I. Posterior part of the pharynx
II. Present at the glottis
III. In front of oesophagus
Choose the correct option accordingly
I-Nasal cavity, II-Larynx, III-Bronchi
I-Nasopharynx, II-Epiglottis, III-Wind pipe
I-Glottis, II-Larynx, III-Trachea
I-Larynx, II-Epiglottis, III-Trachea
Identify the component of respiratory system which displays the features given below and choose the correct option
I. Double layered
II. Fluid contained in it reduces the friction on the lung surface
III. Its outer layer is in contact with thoracic wall
IV. Its inner layer is in contact with lungs
Visceral layer
Peritoneum cavity
Visceral organs
Pleura
Which of the following statement is true regarding the human respiratory system?
Tracheal rings are of hyaline cartilage
Dorsal side of the thoracic chamber is formed by sternum
Expiration occurs when there is negative pressure in the lungs
Inspiration occurs when there is positive pressure in the lungs
