Kidneys.pdf - 10/22/2018 NursingABC - Module Kidney...

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10/22/2018NursingABC - Module1/24Kidney OverviewNotice:To optimize your learning in this course, we advise that you complete the labs and modules asindicated in theBIOD 152 Lab Schedule.The urinary system is composed of a pair of kidneys, each with one ureter which leads to the urinary bladderfrom which the urethra carries wastes as urine from the body. The ureters and urethra are tubes which transportthe urine from kidney to bladder and bladder to the outside the body respectively. The bladder is a urine storagecontainer. The kidneys serve many functions among which are: fluid homeostasis, filtration of wastes andhomeostasis of blood volume and chemical makeup.
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10/22/2018NursingABC - Module2/24Kidney AnatomyAn adult kidney is bean­shaped, about the size of a can of soup and weighs about 5 ounces. The right kidney(because of the liver's location just above it) lies slightly lower than the left and both are protected by the ribcage since they are located in the lumbar region between the T­12 and L­3 vertebra. The kidney's medialsurface is concave and has a cleft called the renal hilus leading to a space within the kidney called the renalsinus. The ureters, blood vessels, and nerves are located in the sinus and entering the kidney at the hilus. Ontop of each kidney is an adrenal gland.The kidney surface is protected by three layers of specialized tissue. The renal capsule is a tough fibrous outerskin of the kidney which protects it from injury and infection. Outside of the renal capsule is a fatty layer thatprotects the kidney from trauma which is called the adipose capsule. The outer renal fascia is dense fibrousconnective tissue which keeps the kidney in place inside the abdominal cavity.The three separate regions evident in a vertical section of the kidney are the cortex, the medulla, and the pelvis.The outer renal cortex, just inside the renal capsule, is a continuous outer region with a number of projections
10/22/2018NursingABC - Module3/24(cortical columns) that extend down between the renal medulla pyramids. Located within the cortex are theglomerular capsule and the distal and convoluted tubule sections of the nephrons along with associated bloodvessels.Deeper within the kidney lies the renal medulla which is divided into sections called pyramids that point towardthe center of the kidney. Located within the medulla are the Loop of Henle and the collecting duct sections ofthe nephrons along with associated blood vessels.The centermost section of the kidney near the renal hilus is the renal pelvis which constitutes a funnel­shapedtube that connects to the ureter as it leaves the hilus. Several extensions of the pelvis called calyces collecturine which drains continuously into the renal pelvis and subsequently into the ureter, which transports the urineto the bladder to be stored.

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Term
Fall
Professor
Rebekah Stepp
Tags
peritubular capillaries, renal pelvis, loop of Henle, Ureter
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Human Physiology: From Cells to Systems
The document you are viewing contains questions related to this textbook.
Chapter 14 / Exercise 1
Human Physiology: From Cells to Systems
Sherwood
Expert Verified

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