The most common symptom of peptic ulcers is:

A. Primary disorders affect hormone receptors, while secondary disorders affect hormone production: While receptor sensitivity may play a role in some conditions, the main distinction between primary and secondary endocrine disorders is based on the location of dysfunction, not receptor or hormone function alone.

B. Primary disorders originate in the target organ, while secondary disorders originate in the pituitary gland or hypothalamus: In primary disorders, the problem lies in the endocrine gland itself (e.g., the thyroid gland in primary hypothyroidism), while secondary disorders result from dysfunction in regulatory centers like the pituitary or hypothalamus.

C. Primary disorders involve the hypothalamus, while secondary disorders involve the target organ: This reverses the correct relationship. Secondary disorders typically involve the hypothalamus or pituitary, not primary disorders.

D. Primary disorders are caused by external factors, while secondary disorders are caused by genetic mutations: While both external and genetic factors can contribute to endocrine disorders, this distinction does not define the difference between primary and secondary types. The classification is based on the anatomical source of dysfunction.

A. The liver metabolizes most components of food (protein, carbohydrates and fats) and also cleans the blood of bacteria and drugs: The liver plays a central role in metabolism, including converting nutrients into energy or storage forms, breaking down toxins, metabolizing drugs, and filtering bacteria from the blood via Kupffer cells.

B. The liver maintains a balanced level of electrolytes and pH in the body and stores glucose, minerals and vitamins: While the liver stores glycogen and some vitamins and minerals, it does not directly regulate electrolyte or pH balance, which is primarily the function of the kidneys and respiratory system.

C. The liver is responsible for the absorption of most dietary nutrients as well as the production of growth hormones: Nutrient absorption is mainly the role of the small intestine. Growth hormone is produced by the pituitary gland, not the liver, making this statement inaccurate.

D. The liver contributes to the metabolism of ingested food and provides the fluids that the GI tract requires: Although the liver produces bile, which aids in fat digestion, it does not supply most of the fluids needed by the GI tract. Salivary glands, gastric glands, pancreas, and intestines contribute the majority of GI fluids.