Il corpo umano - paperback edition

Product Information

This section may require cleanup to meet Wikipedia's quality standards. The specific problem is: Should be cut down more to fit the length of the other systems, and some paragraphs are a bit difficult to read. Please help improve this section if you can. ( June 2023) ( Learn how and when to remove this template message) Frausto Da Silva, J. J. R; Williams, R. J. P (2001-08-16). The Biological Chemistry of the Elements: The Inorganic Chemistry of Life. OUP Oxford. ISBN 9780198508489. L' anatomia umana studia le strutture e i sistemi del corpo umano. La fisiologia studia il funzionamento del corpo umano. L' ecologia si concentra sull'ecosistema e su interazioni fra l'essere umano e l' ambiente.

a b c Institute of Medicine (29 September 2006). Dietary Reference Intakes: The Essential Guide to Nutrient Requirements. National Academies Press. pp.313–19, 415–22. ISBN 978-0-309-15742-1 . Retrieved 21 June 2016. The heart has an electrical conduction system to control the contractions and relaxation of the muscle. It starts in the sinoatrial node traveling through the atria causing them to pump blood into the ventricles. It then travels to the atrioventricular node which makes the signal slow down slightly allowing the ventricles to fill with blood before pumping it out and starting the cycle over again. [16] Of the 94 naturally occurring chemical elements, 61 are listed in the table above. Of the remaining 33, it is not known how many occur in the human body. Ndefo, Uche Anadu; Eaton, Angie; Green, Monica Robinson (June 2013). "Polycystic Ovary Syndrome". Pharmacy and Therapeutics. 38 (6): 336–355. ISSN 1052-1372. PMC 3737989. PMID 23946629.Cardiovascular System / Introduction to the Cardiovascular System, su training.seer.cancer.gov, 2 febbraio 2007. URL consultato il 9 dicembre 2017 (archiviato dall' url originale il 2 febbraio 2007). Many diseases affect the reproductive system such as polycystic ovary syndrome (PCOS) which is characterized by elevated androgen levels, menstrual irregularities and/or small cysts on one or both of the ovaries. It is a common disease affecting at least 7% of adult women. Symptoms may include excess body hair, infertility, or weight gain, male pattern baldness. [45] [46] Bianconi, Eva; Piovesan, Allison; Facchin, Federica; etal. (5 July 2013). "An estimation of the number of cells in the human body". Annals of Human Biology. 40 (6): 463–471. doi: 10.3109/03014460.2013.807878. hdl: 11585/152451. PMID 23829164. S2CID 16247166. The Cardiovascular System, su ect.downstate.edu. URL consultato il 9 dicembre 2017 (archiviato dall' url originale l'11 giugno 2016).

Ultratrace minerals". Authors: Nielsen, Forrest H. USDA, ARS Source: Modern nutrition in health and disease / editors, Maurice E. Shils ... et al.. Baltimore: Williams & Wilkins, c. 1999, p. 283-303. Issue Date: 1999 URI: [1] Il corpo maschile di un adulto di circa 70 Kg è formato da 42 litri di acqua, corrispondenti al 60% del proprio peso. Il liquido è suddiviso in circa 19 litri nel compartimento extracellulare (inclusi i 3,2 litri di plasma sanguigno e 8,4 litri di liquido interstiziale) e 23 litri nel compartimento intracellulare. The urinary system consists of the two kidneys, two ureters, bladder, and urethra. It removes waste materials from the blood through urine, which carries a variety of waste molecules and excess ions and water out of the body.Mizutani, K.; Mikami, B.; Aibara, S.; Hirose, M. (2005). "Structure of aluminium-bound ovotransferrin at 2.15 Å resolution". Acta Crystallographica Section D. 61 (12): 1636–42. doi: 10.1107/S090744490503266X. PMID 16301797. Each day, the kidneys process about 200 quarts (50 gallons) of blood to filter out about 2 quarts of waste and water. Internally, the male reproductive system starts in the testes where hundreds of seminiferous tubules produce sperm which is then stored and matured into spermatozoon in the epididymis. They are then brought through the vas deferens which leads away from the testes to the seminal vesicles where the sperm cells are mixed with a fructose-rich fluid from the seminal vesicles allowing the sperm to stay alive and remain healthy. It is then brought by the ejaculatory duct through the prostate and bulbourethral gland, and mixed with fluids from said glands. The fluid from the prostate helps to neutralize the acidity of the vagina and keep the sperm alive. This mixture of sperm and accessory gland fluids is called semen and is released through the urethra during ejaculation. Almost the entire internal male reproductive system works in pairs with two testes, two epididymis, two vas deferens, two seminal vesicles, two ejaculatory ducts, two bulbourethral glands, but only one prostate and urethra. [41] [42] External female reproductive system with mons pubis highlighted Zimmermann, Kim Anne. "Lymphatic System: Facts, Functions & Diseases". LiveScience . Retrieved 4 September 2016.