Question

4. During exhalation, the ribs :
(a) Move outwards
(c) Move upwards
(b) Move downwards

Answer 1

i think c is the answer....hope it helps

Answer 2

Answer:

Explanation:

Breathing involves the movement of the diaphragm and the rib cage. During inhalation, ribs move up and outwards and diaphragm moves down. During exhalation, ribs move down and inwards, while diaphragm moves up to its former position. This reduces the size of the chest cavity and air is pushed outof the lungs