Subject :NSO Class : Class 7
Refer to the given paragraph and select the correct option regarding V-Z.
When we take in oxygen, the ribs move ___V___ and ___W___ and diaphragm becomes ___X___ . This ___Y___ the volume of the thoracic cavity and the air pressure inside the lungs ___Z___ .
AV - Upward; W - Outward; X - Flat; Y - Increases; Z - Decreases
BV - Downward; W - Inward; X - Curved; Y - Decreases; Z - Increases
CV - Upward; W - Outward; X - Flat; Y - Decreases; Z - Increases
DV - Downward; W - Inward; X - Curved; Y - Increases; Z - Decreases