Final answer:
The liver does not secrete growth hormone, hence it is not an endocrine gland. Instead, growth hormone is produced by the pituitary gland. Endocrine disorders can include hypersecretion, like Cushing's syndrome, or hyposecretion, like diabetes.
Step-by-step explanation:
The liver is NOT an endocrine gland and does not secrete growth hormone.
Endocrine glands secrete hormones directly into the bloodstream. The main endocrine glands and their hormones include the thyroid gland secreting thyroxine, the adrenal glands secreting cortisol, and the pancreas secreting insulin. Growth hormone is actually produced by the pituitary gland, not the liver. The liver does have important roles in metabolism and detoxification, but it does not function as a classic endocrine gland. Hypersecretion and hyposecretion are conditions of overproduction or underproduction of hormones, respectively.
An example of hypersecretion is Cushing's syndrome, where there is an excessive amount of cortisol in the body. Diabetes is a common endocrine disorder characterized by inadequate insulin production or use, leading to high blood sugar levels.