This might help here you go
Adenosine triphosphate
ATP
Answer:
Thoracic cavity, also called chest cavity, the second largest hollow space of the body. It is enclosed by the ribs, the vertebral column, and the sternum, or breastbone, and is separated from the abdominal cavity (the body's largest hollow space) by a muscular and membranous partition, the diaphragm.
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Once, a physician accept to treat a patient, their relationship will continue to exist until the patient no longer needs the physician, then the relationship will end naturally. But in a situation where the relationship has to come to an untimely end, the physician must avoid abandonment claim by giving sufficient notice of withdrawal to the patient, relatives or responsible friends and guardians of his patient in order to secure another physician.
Answer:
lungs. that is why it is called respiratory system
Explanation: