The Nephron
How many nephrons does each kidney have?
Over 1 million! (approximately 1.25 million, but who's counting really..?)
What is the purpose of excretion?
To rid the body of waste materials
I am the primary organ of the urinary system
kidney
What does -itis at the end of a term mean?
swelling or inflammation
This human body system's main function is to transport nutrients, gases, and wastes around the body
Circulatory System
Where in the nephron does ultrafiltration take place?
In the Bowman's capsule
Aside from the urinary system, what two other systems excrete wastes?
Digestive (feces) and Respiratory (carbon dioxide)
I am the tube that connects the bladder to the outside world
urethra
a person in End Stage Renal Disease may need to go on this in order to survive until a new kidney can be found for transplantation.
dialysis
This system provides support and structure for the human body
Skeletal System
Selective reabsorption occurs between the nephron and what blood vessels?
The structure located at the bottom of the bladder just before the urethra, which can hold urine in the bladder until we are ready to void.
sphincter
I am the structure that brings "clean" blood from the kidneys back into the vena cava for circulation
renal vein
This disease is caused by bacteria growing inside of the urinary system
Cystitis, or Urinary Tract Infection
These grape-like sacs within the lungs are the site of gas exchange
Alveoli
The filtrate (urine) is collected from nephrons at what structure?
collecting ducts
Fish excrete their nitrogenous waste in the form of ____________ directly into the water around them.
ammonia
I am the tube which connects the kidneys to the bladder
ureters
This organization is helping to bring kidney donors and those in need together to save lives.
National Kidney Foundation
#BigAskBigGive
These structures within the small intestine increase surface area and allow for increased absorption of nutrients into the bloodstream.
Villi
The nephron filters molecules based on what?
Size. It filters out everything small enough to get through the holes in the glomerulus.
What percentage of urine is made up of urea (on average)?
around 2%
I am the chalice like structure which collects all filtrate before it flows down the ureters
renal pelvis
One way to avoid developing Kidney Stones
drink plenty of water
avoid high protein diets
avoid soda
In the heart, the left ventricle pumps blood through which vessel?
the Aorta