Final answer:
In hypopituitarism, the order of hormones lost varies depending on the affected part of the pituitary gland. Tropic hormones like TSH, ACTH, FSH, and LH are usually lost first, affecting the function of other endocrine glands. The specific symptoms depend on the hormones that are affected.
Step-by-step explanation:
In hypopituitarism, the order of hormones lost depends on which part of the pituitary gland is affected. The anterior pituitary gland produces seven hormones: growth hormone (GH), thyroid-stimulating hormone (TSH), adrenocorticotropic hormone (ACTH), follicle-stimulating hormone (FSH), luteinizing hormone (LH), beta endorphin, and prolactin.
In general, the tropic hormones (TSH, ACTH, FSH, and LH) are lost first in hypopituitarism. These hormones control the function of other endocrine glands. For example, TSH stimulates the thyroid gland to produce thyroid hormones, while ACTH stimulates the adrenal glands to produce cortisol.
When hypopituitarism occurs, the loss of these tropic hormones can lead to dysfunction of the target glands, such as hypothyroidism or adrenal insufficiency. The order of hormone loss can vary among individuals, and the specific symptoms depend on the hormones that are affected.