Ebook BRS cell biology and histology (6th edition): Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook BRS cell biology and histology (6th edition): Part 2
Ebook BRS cell biology and histology (6th edition): Part 2
chapter ^1 2Endocrine SystemI. OVERVIEW—THE ENDOCRINE SYSTEMA.The endocrine system is composed of several ductless glands, clusters of cells within ce Ebook BRS cell biology and histology (6th edition): Part 2ertain organs, and isolated endocrine cells, so-called diffuse neuroendocrine system (DNES) cells, in the epithelial lining of the gastrointestinal and respiratory systems.B.Glands of the endocrine system include the pituitary, thyroid, parathyroid, adrenal, and pineal glands.c. Function. The endocr Ebook BRS cell biology and histology (6th edition): Part 2ine system secretes hormones into nearby capillaries and interacts withthe nervous system to modulate and control the body’s metabolic activities.II.Ebook BRS cell biology and histology (6th edition): Part 2
HORMONES1 w V JU IU. 1 w ft %|Hormones are chemical messengers that are carried via the bloodstream to distant target cells. Hormones include low-molechapter ^1 2Endocrine SystemI. OVERVIEW—THE ENDOCRINE SYSTEMA.The endocrine system is composed of several ductless glands, clusters of cells within ce Ebook BRS cell biology and histology (6th edition): Part 2ipally the steroid hormones (e.g.. progesterone, estradiol, testosterone).A.Water-soluble hormones interact with specific cell surface receptors on target cells, which communicate a message that generates a biological response by the cell.1G protein-linked receptors are used by some hormones (e.g., Ebook BRS cell biology and histology (6th edition): Part 2epinephrine, thyroid-stimulating hormone [TSHI, serotonin). Binding of the hormone to the G protein-linked receptor leads to production of a second meEbook BRS cell biology and histology (6th edition): Part 2
ssenger that evokes a target cell response.2Catalytic receptors are used by insulin and growth hormone. Binding of the hormone to the catalytic receptchapter ^1 2Endocrine SystemI. OVERVIEW—THE ENDOCRINE SYSTEMA.The endocrine system is composed of several ductless glands, clusters of cells within ce Ebook BRS cell biology and histology (6th edition): Part 2o specific receptors in the cytosol or nucleus, forming hormone-receptor complexes that regulate transcription of deoxyribonucleic acid (DNA).III. OVERVIEW—PITUITARY GLAND (HYPOPHYSIS)The pituitary gland lies below the hypothalamus, to which it Is structurally and functionally connected. It is divid Ebook BRS cell biology and histology (6th edition): Part 2ed into two major subdivisions, the adenohypophysis and the neurohypophysis (Figure 13.1). Each subdivision is derived from a distinct embryonic analoEbook BRS cell biology and histology (6th edition): Part 2
g, which is reflected in its unique cellular constituents and functions.196Endocrine System 197HypothalamusWater absorptionKtdnoyADHContractionSecretichapter ^1 2Endocrine SystemI. OVERVIEW—THE ENDOCRINE SYSTEMA.The endocrine system is composed of several ductless glands, clusters of cells within cechapter ^1 2Endocrine SystemI. OVERVIEW—THE ENDOCRINE SYSTEMA.The endocrine system is composed of several ductless glands, clusters of cells within ceGọi ngay
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