Answer: Because an endocrine glad does not have a tube through which it delivers hormone to the body. They just release their hormones into the space around the gland, which diffuse into the blood stream.
Answer: Because it secrets what are known as "tropic hormones" or in other words it secretes hormones that tell other glands to make other hormones, causing a domino effect. So the pituitary not only secrets hormones such as Oxytocin and ADH itself, but it causes almost all of the other endocrine responses. (Such as the release of noradrenalin, insulin, and other hormoes)
Answer: Progesterone is secreted by the corpus luteum of the ovary and by the placenta, that acts to prepare the uterus for implantation of the fertilized ovum, to maintain pregnancy, and to promote development of the mammary glands. Therefore, Corpus luteum Secretes progesterone and estrogen.
Answer: The pancreas produces both the natural non-essential insulin and Glucagon that the body uses. Non-essential meaning the supply that is produced by the body. It is still essential, but is a product that does not need to be obtained from foods to maintain a consistent level.
Mast cells contain histamine. When they encounter a foreign body, they splay themselves and release histamines which then cause swelling and surround the foreign body so other parts of the immune system can rid the body of the foreign invader. Antihistamines offer much comfort.
Answer: the glands that secrete dopamine are the hypothalamus and also the adrenal medulla. the dopamine secreted from the hypothalamus act as the lactrothrope inhibiting hormone and also known as cathecolamine
Answer: ALL hormones by definition are secreted directly into the blood stream (and hence without the use of a duct). Glands that produce them are called endocrine glands. Major endocrine glands include the pituitary, thyroid, adrenal and pineal glands. Glands such as the pancreas have a "dual" function in that they secrete via a duct (exocrine function) as well as secreting hormones (endocrine function).
Answer: The Pituitary Gland controls your growth and it is the size of a pea and it weighs 0.5 gand its loctated in the middle of your barin it has two lobes the exterior and anterior this gland controls your blood pressure . It regulates water and it hepls regualate water in the kidneys it controls and makes breast milk and controls childbirth causes contractions and a baby to be born. it controls your thyroid gland as well >