TAILIEUCHUNG - Ebook Anatomy and physiology for nurses at a glance: Part 2

(BQ) Part 2 book "Anatomy and physiology for nurses at a glance" presents the following contents: The gastrointestinal tract, the male reproductive system, the female reproductive system, the endocrine system, the musculoskeletal system, the skin, the senses. | The urinary system Chapters 31 The kidney microscopic 72 32 The kidney macroscopic 74 33 The ureter bladder and urethra 76 34 Formation of urine 78 71 Part 6 The urinary system 72 The kidney microscopic Figure A nephron Glomerular Bowman s capsule Glomerulus Distal convoluted tubule Afferent arteriole Efferent arteriole Proximal convoluted tubule Loop of Henle Interstitial fluid in renal cortex Collecting duct Interstitial fluid in renal medulla Papillary duct Dilute urine Source Peate I Nair M Fundamentals of Anatomy and Physiology for Student Nurses 2011 Figure Bowman s capsule Parietal layer of glomerular Bowman s capsule Proximal convoluted tubule Source Peate I Nair M Fundamentals of Anatomy and Physiology for Student Nurses 2011 Anatomy and Physiology for Nurses at a Glance First Edition. Ian Peate and Muralitharan Nair. 2015 John Wiley Sons Ltd. Published 2015 by John Wiley Sons Ltd. Companion website nursing anatomy Nephrons These are small structures and they form the functional units of the kidney. The nephron consists of a glomerulus and a renal tubule Figure . The renal tubule can be further divided into Bowman s capsule proximal convoluted tubule loop of Henle distal convoluted tubule and the collecting ducts. There are approximately over one million nephrons per kidney and it is in these structures that urine is formed. Its main function is to regulate water and electrolytes by filtering the blood reabsorbing what is needed and excreting the rest as urine. A nephron eliminates wastes from the body regulates blood volume and blood pressure controls levels of electrolytes and metabolites and regulates blood pH. Glomerular capsule Also known as glomerular capsule Figure this is a cuplike sac and is the first portion of the nephron. A Bowman s capsule is part of the filtration system in the kidneys. When blood reaches the kidneys for filtration it enters the Bowman s capsule first with the capsule separating the

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