Week 15: The Excretory/Urinary System Study Guide
1) List at least 4 functions of the Urinary System. Filtration of the blood. Reabsorption. Secretion and activation of vitamin D.
2) What is the role of the renal artery? Transports oxygenated blood from the heart and aorta to the kidney for filtration
3) What is the function of the nephron? It is used for filtration of blood and reabsorption and secretion of materials
4) What does the capsule do? Supports and protects the kidney
5) What is the function of the cortex? It is the outer layer of the nephron; it is the main site for filtration reabsorption and secretion
6) What are renal pyramids? They ...view middle of the document...
17) What organ is most essential for homeostasis in this system? The kidneys
18) What are the functions of the urinary system? Filtration of blood, Reabsorption of vital nutrients, ions and water, Secretion of excess materials, Activation of Vitamin D,
19) What are the components of the nephron? Glomerulus, bowman’s capsule, proximal convoluted tubule, loop of henle, distal convoluted tubule
20) What is the upper portion of the urethra connected to? The bladder
21) Describe the male vs. female anatomy of the urinary system. For the actual things they contain, they all contain the same parts, however a males is longer due to the penis and women’s is shorter.
22) Describe nephron filtration. Both the glomerulus and bowman’s capsule mechanically filter blood. The proximal convoluted tubule reabsorbes 75% of water salts glucose and amino acids, the henie maintain the concentration gradient, and distal convoluted tubule does tubular secretion of H ions, potassium and certain drugs.
23) What are the characteristics of urinary diseases such as renal calculi, Bright’s disease, diabetes mellitus, cystitis, incontinence? All of these affect a person’s urination and can lead to problems. Most are caused by a bacteria or a disorder; most can lead to inflammation and uncomfortable situations