Summary: Hormones & Homeostasis
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intro
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What are the most important principles in endocrinology?
- Hormone secretion
- Hormone action
- Principlesof feedback control
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Which kind of membrane receptors do you have?
- G-protein-coupled
- Ionotropic receptors
- steroid receptors
- Kinase-linked receptors
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How is the endocrine system evaluated?
By measuring hormone concentrations -
How are endocrine disorders amendable to effective treatment?
- deficiencies are treated with physiological hormone replacements
- excessive conditions like benign/malignent glandular adenomas (cancer)
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What is the modern definition of an hormone?
- productions does not necessarily take place in glands (gut)
- other signals come from nearby cells (paracrine) or the own self (autocrine) of are from nutrition
- many hormone receptors are not considered as endocrine targets
- The classic production in glands, secretion in the bloodflow and binding on targets does still apply for some hormones
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Which two types of hormones are there?
- Growth factors
- Sex steroids which leads to epiphysial closure
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What are the most important hormones in the regulation of the homeostasis?
- TH
- Cortisol
- PTH (regulates Ca2+ and F2)
- Vasopressin
- Mineralocortoids
- insulin
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What are the main functions of hormones?
- Growth and differentiation
- Maintainance of the Homeostasis
- Reproduction
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Which hormone is most important during child rearing?
Oxytocin -
What is the field of endocrinology concerned with?
- biosynthesis
- storage
- chemistry
- physiological function
- the productive cells and tissues
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