1. Homeostasis is defined as the body’s internal environment being within a certain physiological state. There are seven major factors that need to be homeostaticly maintained. They are: concentration of oxygen and carbon dioxide, nutrition of cells, concentration of wastes, concentration of sugars, salts, and other electrolytes, temperature, and volume and pressure. An example of the body maintaining homeostasis is blood pressure. When the hear begins to pump faster, it sends more blood into the …showed first 75 words of 580 total…

…showed last 75 words of 580 total…are seven cervical vertebrae, twelve thoracic vertebrae, five lumbar vertebrae, and four cocygeal vertebrae that are fused into one bone known as the coccyx. The thoracic region refers to the entire chest. The skeletal portion contains the sternum, costal cartilage, ribs, and the bodies of the thoracic vertebrae. Enclosed and protected by the thoracic cage are the organs in the thoracic cavity. It also supports the bones of the upper limbs and the shoulder girdle.