Sheehan syndrome (HVL necrosis) is the term used to describe a deficiency of ACTH. It is caused by medications or by an alteration of the anterior pituitary gland and is nowadays easily treatable. What is Sheehan syndrome? Sheehan syndrome is a loss of function of the anterior pituitary gland, which usually occurs after childbirth. The … Sheehan Syndrome: Causes, Symptoms & Treatment
Small as a hazelnut, huge in effect: the pituitary gland (hypophysis) controls a wide variety of functions in the body through hormones – from body growth to milk production after childbirth to urinary excretion. Learn more about the control center of our hormonal system here. What does the pituitary gland look like and where exactly … Pituitary Gland: Hormonal Gland in the Turk’s Saddle
When tumors press on the pituitary gland, they interfere with hormone production. More common are benign tumors of the gland-forming tissue, HVL adenomas, which cause hormone imbalance. Malignant tumors of the pituitary gland are extremely rare. Inflammation of the meninges (meningitis) or brain (encephalitis), an accident or surgery, radiation, or circulatory problems can also affect … Pituitary Gland: Diseases
The pituitary gland, in German Hirnanhangsdrüse, is a hormonal gland about the size of a hazelnut seed, located at the level of the nose and ears in the middle cranial fossa. It works closely with the hypothalamus and, like an interface between the brain and bodily processes, controls the release of vital hormones that influence … Pituitary Gland: Structure, Function & Diseases
Hypophysitis is a rarely occurring inflammation of the pituitary gland. Various forms of pituitary inflammation are known, but not all physiologic and immunologic relationships have been elucidated, especially in lymphocytic pituitary inflammation, which is probably due to an autoimmune response of the body. As it progresses, pituitary inflammation leads to progressive loss of pituitary function, … Pituitary Gland Inflammation: Causes, Symptoms & Treatment
Negative feedback refers to a control loop in which the output variable has an inhibitory effect on the input variable. In the human body, negative feedback is particularly crucial for hormonal homeostasis. In hormonal function testing, the control loops are examined for errors. What is negative feedback? In the human body, negative feedback is especially … Negative Feedback: Function, Tasks, Role & Diseases
The thalamus is a part of the diencephalon. It is composed of different nucleus areas. What is the thalamus The dorsal thalamus represents a component of the diencephalon. Other subregions include the hypothalamus including the pituitary gland, the subthalamus, and the epithalamus including the pineal gland. The thalamus exists once in each brain hemisphere. It … Thalamus: Structure, Function & Diseases
Triiodothyronine, also known as T3, is an important hormone produced in the thyroid gland. Together with T4, another thyroid hormone, it plays a major role in many metabolic processes in the human body. What is triiodothyronine? Infographic on the anatomy and location of the thyroid gland, as well as the symptoms of hyperthyroidism and hypothyroidism. … Triiodothyronine: Function & Diseases
Somatotropin, also called somatropin, growth hormone, or somatotropic hormone, is a so-called peptide hormone that is produced in the anterior pituitary gland. The hormonal action of somatotropin affects overall metabolism and growth. What is somatropin? Schematic diagram showing the anatomy and structure of the endocrine (hormone) system. Click to enlarge. Like most hormones in the … Somatropin: Function & Diseases
Lactation reflexes play a role in pregnancy and lactation and serve to nourish the offspring. Breast milk is produced reflexively in the mammary gland under hormonal influence and is secreted by the gland. Absent lactation reflexes can be related to psychological causes such as stress, but can also be caused by faulty breastfeeding behavior. What … Lactation Reflex: Function, Tasks, Role & Diseases
Oxytocin is a much-discussed substance, not least in connection with its important function in the social fabric. Colloquially, oxytocin is known as the “bonding hormone.” What is oxytocin? Oxytocin (also called oxitocin) is both a hormone and a neurotransmitter with a central role in the birth process. At the same time, oxytocin influences behavior among … Oxytocin: Function & Diseases
In gynecology, the ovarian follicle is a unit consisting of female oocytes, epithal granulosa cells, and the two surrounding connective tissue fringes, theca interna and theca externa, which are localized to the ovarian cortex at advanced stages of follicular maturation. The ovarian follicle and in particular its anatomical auxiliary cells themselves perform important tasks in … Ovarian Follicles: Structure, Function & Diseases
