Question

1 multiple choice 5 points
which hormone is secreted by alpha cells of the islets of langerhans of the pancreas?
glucagon
glucose
glycogen
glucocorticoids
2 multiple choice 5 points
the parathyroid glands secrete a hormone which regulates the level of what substance in the blood?
thyroid hormone
melatonin
insulin
calcium
3 multiple choice 5 points
which of the following is the abbreviation for the hormone, released by the anterior pituitary gland, that stimulates the thyroid gland?
fsh
acth
tsh
adh

Explanation:

1. The islets of Langerhans in the pancreas have different cell types. Alpha cells secrete glucagon, which raises blood glucose levels. Glucose is a sugar, glycogen is a storage form of glucose, and glucocorticoids are from the adrenal cortex.
2. Parathyroid glands secrete parathyroid hormone (PTH) which regulates calcium levels in the blood. Thyroid hormone is from the thyroid, melatonin from the pineal gland, and insulin from pancreatic beta cells.
3. The anterior pituitary gland releases thyroid - stimulating hormone (TSH) to stimulate the thyroid gland. FSH (follicle - stimulating hormone) is involved in reproductive functions, ACTH (adrenocorticotropic hormone) stimulates the adrenal cortex, and ADH (antidiuretic hormone) is mainly for water reabsorption in the kidneys.

Answer:

1. glucagon
2. calcium
3. TSH