Kathy saw all the blood pooled in his chest cavity and ran to get a vac tube for a sample.
As Animal Planet explains, the rigid structure of their voice box and the smaller chest cavity limits the domestic cat's range, but not its ability to use sounds for communication.
Regular exercise and a nutritionally-balanced diet can help a patient to lose weight, thus decreasing the pressure on the chest cavity and improving the overall functioning of the cardiovascular system.
Diaphragm-The thin layer of muscle that separates the chest cavity containing the lungs and heart from the abdominal cavity containing the intestines and digestive organs.
The stomach, intestines, liver, spleen, and kidneys can move into the chest cavity through this hole, which is most often on the left side.