Which of the following cells is least likely to develop into a neoplasia?

A. Increased total body water due to an increase in muscle mass is incorrect because muscle tissue holds more water than fat tissue, but as people age, they typically lose muscle mass, not gain it.

B. Decreased total body water due to a decrease in muscle mass is correct. As people age, muscle mass generally decreases, and since muscle tissue contains more water than fat tissue, the total body water decreases with aging.

C. Increased total body water caused by increased fat mass is incorrect because fat tissue actually holds less water than muscle tissue. As fat mass increases, total body water typically decreases.

D. Decreased total body water caused by decreased fat mass is incorrect because fat tissue does not significantly contribute to total body water, and the loss of fat does not have a significant impact on water content in the body.

A. Anorexia is a common manifestation of SIADH due to the effects of hyponatremia (low sodium levels) and fluid retention.

B. Edema of fluid overload is not a typical manifestation of SIADH. While SIADH leads to fluid retention due to excess antidiuretic hormone (ADH), the excess fluid is typically intracellular and does not cause peripheral edema as seen in conditions like heart failure or nephrotic syndrome.

C. Vomiting is a common manifestation of SIADH, often related to the effects of hyponatremia, which can irritate the gastrointestinal system.

D. Nausea is also a common symptom of SIADH due to the imbalance of electrolytes, particularly low sodium levels, which can affect the brain and lead to nausea.