Nephron Assignment

Urinary System

AKA Renal System

Due Friday November 1st

 

The urinary system, also known as the renal system or urinary tract, consists of the kidneys, ureters, bladder, and the urethra. The purpose of the urinary system is to eliminate waste from the body, regulate blood volume and blood pressure, control levels of electrolytes and metabolites, and regulate blood pH.

 

Today we will be focusing on the nephron. The nephron is the filter inside the kidney. There are about 1,000,000 nephrons in each of your two kidneys.  We need to have an understanding of how the nephron helps maintains homeostasis and eliminates waste by making urine.

 

Todays Assignment:

  1. Make a model of the nephron.

You need to use two pieces of each color yarn, a piece of paper, clear tape (a reasonable amount) and a pencil (to write with).  Your model should show the anatomy of the nephron. Clearly label each. Be sure to include the following:

 

  • Efferent Arterioles
  • Afferent Arterioles
  • The Arteries that wrap around the nephron
  • Glomerulus
  • Proximal Convoluted Tubule
  • Loop of Henle
  • Thick Descending Limb
  • Thin Descending Limb
  • Thin Ascending Limb
  • Thick Ascending Limb
  • Distal Convoluted Tubule
  • Collecting Duct

 

  1. Your model should also show what is filtered (F), secreted (S), reabsorbed (R), and Excreted (E) at each location of the nephron.

 

It is suggested that you use the following videos and resources to complete this assignment.

https://www.youtube.com/watch?v=k5IF1j7b3fI&t=2s

https://www.youtube.com/watch?v=vNvZaGcLzEo&t=276s

Blue book.

For a C grade on this assignment complete the above mentioned with purpose.

To receive a B or an A on this assignment complete this assignment with purpose and add the effects of osmosis on the filtrate in your nephron model. Good resource – use the blue book.