What is the difference between the front and rear pituitary gland?
The basic differences between the front and rear pituitary gland when each part is formed in the embryo. The rear pituitary is formed from neurons in the evolving hypothalamus, which is formed on the basis of the human brain, while the anterior pituitary is made of skin tissue that comes from the roof of the mouth. The anterior pituitary gland becomes an endocrine gland producing and excreting the hormones for the body and in full formation connects to the rear pituitary. Meanwhile, the rear pituitary gland remains associated with the hypothalamus, which acts as a storage for hormones produced by the hypothalamus and receiving messages from it that regulates when the hormones are to be released into the anterior pituitary and through the anterior pituitary. Although the anterior and rear organs of the pituitary are working closely for hormone regulation, they are basically two different organs in physiology and function.
The medical term for the pituitary is the pituitary. It consists of adenohypophysis, or anterior lobe and neurohypophysis or back. Both are controlled directly by neurons and axon Messenger paths from the hypothalamus and share localVascular network with hypothalamus. This network of arteries, veins and capillaries connects to the bloodstream of the body and transports hormones to other endocrine organs such as thyroid, ovaries, adrenal glands and other glands. These glands also send feedback signals to the back pituitary gland, which adjust the release of hormones due to the needs of the body.
hormones developed in the anterior pituitary gland regulate physiological processes related to growth, reproduction and metabolism. For example, it excludes hormones when it gets a signal from a hypothalamus that gives growth hormones to the bones; Or when oxytocin is released from another part of the body, which stimulates the anterior pituitary gland to release hormones to stubbish the contraction of the mammary gland in breastfed mothers. In the anterior pituitary, adrenocorticotropic hormone (ACTH) is sent to the adrenal glands to stimulate the production of glucocorticoids to respond to stress reactions or fear. Endorphin's edition creates a feeling pEast to balance the pain or danger that causes adrenaline release.
back pituitary gland, unlike the anterior, is not a gland; This organ is a collection of vascular network and nerve pathways from hypothalamus to the anterior pituitary. Does not perform any hormones; Rather, it deposits them for hypothalamus, which can eliminate them when signaled to work in conjunction with other leading pituitary hormones. From the back storage, vasopressin hormones that regulate the renal water renal retention can be released by the hypothalamic signal.
Within high -performance electron microscopes, physiological differences between front and post -postouerior pituitary cells are easily obvious. Front cells are clearly endocrine cells and the rear cells are bright nerve cells. The front and rear pituitary controls also show that the front is controlled by the blood release factors from the hypothalamus, while the nerve signals control the rear pituitary.