Optic chiasm is the name given to a junction of the optic nerve. At this section, the nerve fibers of the nasal halves of the retina cross. What is the optic chiasm? The optic chiasm is also known as the optic nerve junction and forms an important part of the visual pathway. In it, the … Optic Chiasm: Structure, Function & Diseases
Prolactin (PRL) is a hormone produced in the lactotropic cells in the anterior pituitary gland. It is especially important during the period of pregnancy and during breastfeeding. Several diseases may be related to prolactin. What is prolactin? Schematic diagram showing the anatomy and structure of the endocrine (hormone) system. Click to enlarge. Prolactin, or lactotropic … Prolactin: Function & Diseases
The milk-forming reflex, along with the milk ejection reflex, is one of the lactation reflexes that mammals use to nourish their offspring and are stimulated by direct contact with the offspring. For the lactation reflex, the hormone prolactin from the anterior lobe of the pituitary gland plays the main role. In the case of hormone … Lactic Reflex: Function, Tasks, Role & Diseases
The long-feedback mechanism is a principle of feedback as it is relevant to hormone balance in the human body. Among the best-known long-feedback mechanisms is the regulatory loop between thyroid hormones and TSH (thyrotropin). Disturbances within this control loop occur in Graves’ disease, among others. What is the long-feedback mechanism? Among the best-known long-feedback mechanisms … Long-feedback Mechanism: Function, Tasks, Role & Diseases
Definition The luteinizing hormone, LH (translated “yellowing hormone”) acts on the gonads in humans and fulfills important functions for the reproductive ability (so-called fertility). In women it is essential for ovulation and in men for the maturation of sperm. It is a so-called peptide hormone, which consists of protein. It is produced in the anterior … Luteinizing hormone
What can trigger elevated values? Elevated levels may be normal in women just before ovulation, as this increase in LH triggers ovulation. Permanently elevated concentrations of LH may indicate an underfunction of the ovaries (so-called primary ovarian insufficiency). The lack of ovarian function causes a regulatory increase in LH and attempts to activate the ovaries … What can trigger elevated values? | Luteinizing hormone
Place of education The luteinizing hormone is produced in the pituitary gland, the adenohypophysis (front lobe of the pituitary gland). The synthesis and secretion of LH is controlled by a hormone from the hypothalamus (a section of the diencephalon) called gonadoliberin (GnRH). LH in turn stimulates the production and release of estrogen and progesterone in … Place of education | Luteinizing hormone
Adolescence is the period of life from late childhood to adulthood. It begins around the onset of puberty and ends when a person is physically, psychologically, and socially mature. What is adolescence? Adolescence is the stage of life from late childhood to adulthood. Adolescence is often thought of as synonymous with the period of puberty, … Adolescence: Function, Tasks, Role & Diseases
Hyperthecosis ovarii is a disorder of ovarian function. In it, the structure of the ovaries is altered and more male sex hormones are produced. What is hyperthecosis ovarii? Hyperthecosis ovarii is one of the ovarian insufficiencies. In ovarian insufficiency, a woman’s ovaries, or ovaries, can no longer work properly. This means that eggs no longer … Hyperthecosis Ovarii: Causes, Symptoms & Treatment
Pubescence refers to male puberty. The boy reaches sexual maturity and then enters puberty, during which secondary male physical characteristics develop and the psyche evolves to the adult stage. What is puberty? Pubescence refers to the onset of puberty and strictly speaking means only the attainment of sexual maturity in boys, not the resulting developments. … Pubescence: Function, Tasks, Role & Diseases
Diagnosis As with any procedure for finding a diagnosis, the medical history can provide information: Do old rings still fit, has the shoe size changed? The comparison with old photographs can help. In endocrinology (the science of hormones), various levels in the blood can be measured: Do old rings still fit, has the shoe size … Diagnosis | Acromegaly
Forecast If the benign tumour can be operated on, its size will determine how good the chances are of achieving a complete cure. For microadenomas the effective healing rate is 90%, for macroadenomas still 60%. All articles in this series: Acromegaly Diagnosis Forecast
