Question

1)name the muscles that relax in this process:
a)inter-costal muscles
b)external inter-costal muscles
c)internal inter-costal muscles
d) internal costal muscles

2)what happens to the rib cage and sternum during this process?
a)move upwards and inwards
b)move downwards and outwards
c)move upwards and outwards
d)move downwards and inwards​

Answer 1

Answer:

1) a) Intercostal muscles

2) d) move downwards and inwards