When you contract the attached muscles (subscapularis muscle, the supraspinatus muscle, the infraspinatus muscle, and the teres minor muscle), they pull on the tendons causing the shoulder to rotate up or down, back or front, in or out; hence the name 'rotator' cuff.
Acinonyx jubatus portrait. Â© 2007 Mark Probst. The cheetah is a big cat and is now, mainly found in southern Africa. It is known for its speed as it is able to accelerate from 0-60 miles per hour in only three seconds, and it is able to reach speeds of around 70 miles per hour (112 kilometers per hour).
big cat facts. The big cats are the four members of the genus panthera. These cats are unique not only in sheer size, but also in their ability to roar. A specialized larynx and a unique part of the throat called a hyoid apparatus allows for the production of a true, deep roaring sound.