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urinary system
test
12
Anatomy
Undergraduate 2
04/02/2008

Additional Anatomy Flashcards

 


 

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Term

Afferent

Definition

Carrying to or towards a center.

Term
Efferent
Definition
Carrying away or away from, especially a nerve fibers that carries impules away from the central nervous system. 
Term
Arteriole
Definition
A minute artery
Term
Glomerulus
Definition

The capillaries run paraellel, is specialized for filtration. It differs from all other capillary beds in the body in that it is both fed and drained by arterioles

 

 

(Afferent and Efferent)

Term
Peritublar capillaries
Definition
Aries from the efferent arterioles draning the glomeruli
Term

The Nephron Capillary Beds are associated with two capillary beds

 

 

 

 

(The golmerulus and the Peritubular capillaries) 

Definition
Term
Facultative Na+ reabsorption occurs in the
Definition
distal convoluted tubule.
 Facultative Na+ reabsorption is regulated by aldosterone
Term
How is Na+ reabsorbed?
Definition
Active transport using ATP
 Most of the energy used for reabsorption is for Na+.
Term
In response to increased levels of aldosterone, the kidneys produce
Definition
urine with a lower concentration of sodium ions.
 Aldosterone increases reabsorption of sodium followed by water.
Term
Micturition is
Definition
a sacral reflex.
 This reflex is also called urination.
Term
Nephron cells that respond to the concentration of filtrate are
Definition
macula densa cells.
 These cells help regulate the filtration rate.
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