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WHS Urinary 1
basic anatomy and glomerular filtration
29
Physiology
12th Grade
11/16/2010

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Term
maintaining salt and water balance in the blood and cells
Definition
The kidneys do osmoregulation. What is osmoregulation?
Term
removal of metabolic wastes from the body
Definition
What is excretion?
Term
NH3, ammonia
Definition
What metabolic waste forms from the digestion of proteins and nucleic acids?
Term
urea (NH2)2CO
Definition
The liver converts ammonia into ________
Term
Na+, K+, H+, Cl-
Definition
What are some of the ions found in blood that are regulated by the kidneys?
Term
They regulate the H+ concentration in the blood.
Definition
How can the kidneys affect blood pH?
Term
They regulate blood volume and blood volume has a direct effect on b.p.
Definition
How can the kidneys affect blood pressure?
Term
UP (direct relationship)
Definition
IF blood volume goes up, then blood pressure goes ____________
Term
ureters
Definition
Name the tubes that connect the kidney to the bladder.
Term
urethra
Definition
Name the tube that extends from the bladder to the outside.
Term
adrenal gland
Definition
What gland sits directly above the kidney?
Term
Adipose tissue for cushioning the kidney from a physical trauma.
Definition
What's the only protective structure surrounding the kidney?
Term
cortex
Definition
What is the outer portion of the kidney?
Term
medulla
Definition
What is the center region of the kidney?
Term
calyces (major and minor)
Definition
What are the large collecting tubes that drain the urine to the pelvis?
Term
renal pyramids
Definition
What are the triangular. darker regions in the medulla called?
Term
15-30%
Definition
About what % of the body's blood supply is in the kidneys?
Term
1.25 million
Definition
How many nephrons are in one kidney?
Term
nephron
Definition
What is the functional unit of the kidney?
Term
Glomerulus
Definition
What's the name of the capillary "ball" inside Bowman's capsule?
Term
glomerular capsule
Definition
What's another name for Bowman's capsule?
Term
afferent arteriole
Definition
What's the name of the blood vessel that brings blood to the glomerulus?
Term
efferent arteriole
Definition
What's the blood vessel that takes blood away from the glomerulus?
Term
To create a filtration pressure inside the glomerulus to push the small molecules out of the capillaries.
Definition
Why is the afferent arteriole bigger than the efferent arteriole?
Term
fenestrae
Definition
What's the name of the tiny holes in the glomerulus?
Term
size (only small molecules pass through)
Definition
The glomerulus filters substances based on ___________
Term
Large blood components like RBC's, WBC's, hormones, antibodies, clotting factors
Definition
What is missing from the filtrate in Bowman's capsule?
Term
salts, vitamins, sugars, amino acids, urea, water, fatty acids,
Definition
What small molecules could be found in the filtrate after glomerular filtration?
Term
glomerular filtration
Definition
The first stage in the process of urine formation is ____________
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