Lungs || Alveoli || Thoracic Cage

Which of the following option gives correct information about the covering of thoracic cage on various surface :-

Floating ribs of the thoracic cage are

Which of the following form thoracic cage of man?

The lungs are situated in a thoracic chamber which is formed dorsally by the ...a..., yentrally by the ...b..., laterally by the ..c... and on lower side by the ..d...

Read the following statement about human respiration ltbgt (i) trachea divides at the level of 6th thoracic vertebra (ii) terminal bronchioles alveoli and their ducts form the respiratory part of this system (iii) contractionof diaphragm increases volume of thoracic chamber doosoven trally (iv) the internal intercostals help in inspiration

Floating ribs of thoracic cage are

Which bones from the thoracic cage in man ?

Assertion : At the lung alveoli level , blood releases carbon dioxide. Reason : Oxy Hb formed at the lung alveoli level acts as a weak acid which favours release of CO_(2) .

Assertion :- The anatomical setup of lungs in thorax is such that any change in the volume of the thoracic cavity will be reflected in the lung cavity. (Pulmonary cavity ) Reason :- Lungs have no muscles so we cannot directly alter the pulmonary volume