Answer:
Respiratory System and the Muscles of Inhalation and Exhalation. The muscular and nervous systems enable the involuntary breathing mechanism. The main muscles in inhalation and exhalation are the diaphragm and the intercontinental (shown in blue), as well as other muscles.
the forelimb help with balance and crawling and the hind limbs are stroger than the forelimbs and they are used for jumping/hopping