The 2 pairs of muscles in the chest that work to pull the upper arms toward or across the chest. The pectoralis major covers the chest from the top of the arm to the collarbone, down to the sternum and upper 6 ribs. The smaller pectoralis minor is located underneath, and runs from mid- chest to shoulder blade

Chest muscles beneath breast, leading up to shoulder.

Agents which relieve infections of the chest and lung.

small sized roundish fins located on both sides of the betta (near head) which have for function to allow fish to hold it's position in water, steer or even back up. Can be used to move forward at a slow pace.

third set of plates in the plastron of turtles