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lecture presentations
lecture presentations

... • The adrenal cortex also produces small amounts of steroid hormones that function as sex hormones ...
Introduction to the Endocrine System
Introduction to the Endocrine System

... middle region of the adrenal cortex. The principal glucocorticoid is cortisol, which increases blood glucose levels. The third group of steroids secreted by the adrenal cortex is the gonadocorticoids, or sex hormones. These are secreted by the innermost region. Male hormones, androgens, and female ...
C16.1 PPT - Destiny High School
C16.1 PPT - Destiny High School

... produces oxytocin, which stimulates the smooth muscles in the uterus during pregnancy, causing contractions during the birth of a baby. ...
Physioactivity 1: Endocrine glands
Physioactivity 1: Endocrine glands

... Text © 2011 Patrick J. P. Brown, All images are the author’s creation, used under the GNU fair use license or are otherwise in the public domain. ...
Overview of the structures of the endocrine system
Overview of the structures of the endocrine system

... terminal ends that are close to the posterior pituitary’s capillaries. •In response to an action potential– hormones are released from vesicles (much like a neurotransmitter), in this case into venous capillaries. ...
Option D.5 Hormones and metabolism
Option D.5 Hormones and metabolism

... result in Gigantism (growth as tall as 8 feet) • In adulthood, excessive GH production stimulates bony growth in the few tissues that are still responsive to the hormone: face, hands and feet • Hyposecretion results in pituitary dwarfism (less than 4 ft.) • Genetic engineering of bacteria allows HGH ...
Biol 155 Human Physiology
Biol 155 Human Physiology

... PRL has a role in regulation of the female reproductive cycle. However, its precise role has not be delineated yet. Excess PRL secretion is know to block synthesis and release of gonadotropins, disrupting menstruation and causing infertility. ...
ENDOCRINE SYSTEM THE PITUITARY GLAND
ENDOCRINE SYSTEM THE PITUITARY GLAND

... Hypothalamus ...
Laboratory 11 Anatomy of the Endocrine System
Laboratory 11 Anatomy of the Endocrine System

... Endocrine  glands  are  organs,  which  synthesize  and  secrete  chemical  messengers  called  hormones   into  the  blood  system.    Endocrine  glands  differ  from  exocrine  glands  in  that  exocrine  glands  secrete   the  synthesized ...
The Pathology of Pituitary
The Pathology of Pituitary

... Cushing's disease-accounts for 2/3 of the cases of Nelson's syndrome ...
The Endocrine System - KCPE-KCSE
The Endocrine System - KCPE-KCSE

... Hypothalamus releases GHRH Anterior Pituitary releases GH ...
Document
Document

... Hypothalamus releases GHRH Anterior Pituitary releases GH ...
الشريحة 1
الشريحة 1

... The ratio of these two catecholamines differs considerably among species: in humans, cats and chickens, roughly 80, 60 and 30% of the catecholamine output is epinephrine. Following release into blood, these hormones bind adrenergic receptors on target cells, where they induce essentially the same ef ...
The Pituitary Gland
The Pituitary Gland

... release – increases alertness and prepares body for physical activity • mobilize high energy fuels /// lactate, fatty acids, and glucose • glycogenolysis and gluconeogenesis both boost glucose levels • glucose-sparing effect /// because inhibits insulin secretion /// muscles use fatty acids saving g ...
Appendix — Tests of Endocrine Function and Normal Values
Appendix — Tests of Endocrine Function and Normal Values

... A combined provocation test is used to test for adequate excretion of GH, TSH, LH and FSH. Basal levels of GH are of no value because of the pulsatile nature of secretion. Likewise, exercise and sleep are both very poor stimuli for GH secretion and should not be used. IGF-1 and IGFBP-3 levels, if in ...
Chapter 16 * Endocrine System
Chapter 16 * Endocrine System

... Angiotensin II targets adrenal cortex, causes increased secretion of Aldosterone  Result: Sodium retention, followed by water retention, potassium and hydrogen loss  Causes blood volume to increase ...
1 Chapter 2: The Endocrine System Chemical Communication
1 Chapter 2: The Endocrine System Chemical Communication

... o after zona pellucida forms, a space between the epithelial cells and ovum develops (called antrum) and it is filled with fluid prior to ovulation  as the antrum grows in size, it is called a tertiary follicle o Prior to ovulation, ovum is maximal size and is called a Graafian follicle  Ovulation ...
endocrine system
endocrine system

... • Hypothalamus – secretes hormones which then influence the pituitary gland to secrete corresponding hormones (see stress response) • The pituitary gland ‘ the pea sized governor’ or ‘master gland’ secretes hormones into the body maintaining homeostasis – this steady state relies on a feedback loop ...
Endocrine Physiology - e-safe
Endocrine Physiology - e-safe

... The follicles comprise a single layer of epithelial cells forming a cavity that contains colloid where the thyroid hormones are stores as thyroglobulin. C-cells, which secrete calcitonin, are found outside the follicles. Synthesis and transport of thyroid hormones Dietary iodide is concentrated by t ...
abnormal bleeding around puberty
abnormal bleeding around puberty

... Transverse vaginal septum: due to failure of canalization of mГјllerian tubules and the sinovaginal bulb, leaving a membrane present. May be associated with urinary tract abnormalities as well. If the membrane is thin, it can be incised and dilated. If it is thick, surgical excision with a split thi ...
Focused Endocrine Assessment
Focused Endocrine Assessment

... Note: Conflict of Interest is defined by ANCC as a situation in which an individual has an opportunity to affect educational content about products or services of a commercial interest with which he/she has a financial relationship. The author of this course does not have any conflict of interest to ...
GH Receptor
GH Receptor

... -possible role in prostate cancer • Serum IGF levels correlate with growth in children • GH stimulates IGF in liver (IGF measure of GH in serum) • PTH and estradiol stimulate osteoblastic IGF-1 production • IGFs are mitogenic and stimulate all metabolism of chondrocyte. ...
Cerebellum - Austin Community College
Cerebellum - Austin Community College

... • Glucose must not only be delivered to the cells, it must also be taken up by them. That job relies on insulin. • Exercise may enhance insulin’s binding to receptors on the muscle fiber. • Up-regulation (receptors) occurs with insulin after 4 weeks of exercise to increase its sensitivity (diabetic ...
L 3 Pancreatic hormones 25th september 2012
L 3 Pancreatic hormones 25th september 2012

... - No definite function has been established ...
02 Endocrine and Cell Communication
02 Endocrine and Cell Communication

... • A recent article in Scientific American indicates that the hormone oxytocin known for its role in social attachment and interaction may also play an important role in our ability to trust. ...
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Hyperandrogenism

Hyperandrogenism, or androgen excess, is a medical condition characterized by excessive levels of androgens in the body and the associated effects of these excessive levels of androgens.Hyperandrogenism is one of the primary symptoms of polycystic ovary syndrome (PCOS). In such cases, it presents with symptoms such as acne and seborrhea, is frequent in adolescent girls and is often associated with irregular menstrual cycles. In most instances, these symptoms are transient and reflect only the immaturity of the hypothalamic-pituitary-ovarian axis during the first years following menarche. Approximately three-quarters of patients with PCOS (by the diagnostic criteria of NIH/NICHD 1990) have evidence of hyperandrogenism, with free testosterone being the single most predictive marker with ~60% of patients demonstrating supranormal levels.Hyperandrogenism can also be the result of excessive production of adrenal or gonadal androgens by adrenal adenomas, carcinomas, or hyperplasia, Leydig cell tumors in men, and arrhenoblastomas in women.In women, signs and symptoms of hyperandrogenism frequently include acne, scalp hair loss (androgenic alopecia), excessive facial and body hair (hirsutism), atypically high libido, breast atrophy, and others. Collectively, these symptoms are described as virilization.Management of hyperandrogenism symptoms like androgenic alopecia, include the use of antiandrogens such as cyproterone acetate, spironolactone, and flutamide.
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