Hypothalamus and pituitary gland

Jan 29, 2017 by in GYNECOLOGY Comments Off on Hypothalamus and pituitary gland

Figure 16.1 Blood supply to, and venous drainage from, the hypothalamo–pituitary axis Histology of the hypothalamo-pituitary region There are three types of hypothalamic neurosecretory cells. Magnocellular neurons secrete arginine vasopressin…

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Female reproductive physiology

Jan 29, 2017 by in GYNECOLOGY Comments Off on Female reproductive physiology

Figure 29.1 The main stages of follicle growth Figure 29.2 Cross-section through an antral, or Graafian, follicle Selection of a single follicle and oocyte Folliculogenesis is defined as growth of…

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Screening and trials statistics

Jan 29, 2017 by in GYNECOLOGY Comments Off on Screening and trials statistics

Likelihood ratio or Odds ratioProbability/(1 – probability)Accuracy(TP + TN)/total T = true | F = false | P = positive | N = negative Sensitivity Sensitivity is the proportion of…

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Calcium homeostasis and bones

Jan 29, 2017 by in GYNECOLOGY Comments Off on Calcium homeostasis and bones

Table 8.3 Organs that regulate calcium homeostasis Organ Function Kidney Response to Ca2+, PTH, vitamin D and calcitonin Activation of vitamin D Regulation of Ca2+ and PO43− reabsorption and excretion…

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Placental structure and function

Jan 29, 2017 by in GYNECOLOGY Comments Off on Placental structure and function

Figure 15.1 Development of the conceptus from the eight-cell stage to the time of implantation In the preimplantation phase, new trophoblast develops from the base of the inner cell mass…

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Adrenal and thyroid glands and the pancreas

Jan 29, 2017 by in GYNECOLOGY Comments Off on Adrenal and thyroid glands and the pancreas

Figure 17.1 Hypothalamo–pituitary–adrenal axis and control of cortisol secretion Cells in the paraventricular nucleus of the hypothalamus secrete corticotrophin-releasing hormone (CRH). Released from nerve terminals in the median eminence, this…

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Cellular response to disease

Jan 29, 2017 by in GYNECOLOGY Comments Off on Cellular response to disease

Figure 23.1 Mechanisms of increased vascular permeability Chemical mediators Broadly speaking, the chemical mediators of inflammation originate either from plasma or from cells (Table 23.3). The production of active chemical…

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Viral infections in pregnancy

Jan 29, 2017 by in GYNECOLOGY Comments Off on Viral infections in pregnancy

Figure 21.1 The pathogenesis of varicella embryopathy Immunological evidence of in utero infection This may be by one of two ways: persistence of VZV-specific IgG at one year of age…

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