study guide 14

Topics: Kidney, Urine, Nephron Pages: 4 (700 words) Published: December 8, 2013
Week 15: The Excretory/Urinary System Study Guide

List at least 4 functions of the Urinary System. Filter blood to allow toxins, metabolic wastes, and excess ions to leave body through urination Regulate volume and chemical makeup of the blood
Maintain proper balance between water and salts, acids and bases Gluconeogenesis during prolonged fasting

What is the role of the renal artery? Transports oxygenated blood from the heart and aorta to the kidneys

What is the function of the nephron? Filtration of blood and the reabsorption of secreted materials

What does the capsule do?It supports and protects the kidney

What is the function of the cortex? It is the main sight for filtration, reabsorption, and secretion

What are renal pyramids? Triangular shaped units in the medulla that house the loops of Henle and collecting ducts of the nephron. This is also the site for the counter-current system that concentrates salt and conserves water and urea

Where is the site of blood filtration? Glomerulus

What does a nephron save for the body? water

Where is the glomerous located? The glomerulus is surrounded by the Bowman’s Capsule

How are kidney stones formed? Crystallization of calcium, magnesium, or uric acid salts that are precipitated down to the renal pelvis

What are the symptoms of cystitis? Inflammation, fever, increased urgency and frequency to urinate

What are the symptoms of Bright’s disease? Back pain, vomiting and fever
13-14) Name two causes for Incontinence. Pregnancy and emotional disorders

15) How does dialysis therapy work? It is a process that removes metabolic waste from the blood

16) What is surrounded by the Bowman’s capsule? Glomerulus

17) What organ is most essential for homeostasis in this system? Kidneys

18) What are the functions of the urinary system? Filtration, Secretion, Reabsorption ,Activation of Vitamin D

19) What are the components of the nephron? Renal...
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