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A & P test 5
Urine part f
14
Anatomy
Undergraduate 1
11/01/2008

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Cards

Term
What is another term for micturation?
Definition
urination
Term
How much does the urinary bladder hold?
Definition
700 o 800 ml
Term
At what level do the stretch receptors cause stimulation?
Definition
200- 400 ml
Term
What is teh Micturation reflex?
Definition
spinal cord- contract detrussor muscle-muscularis layer
Term
When the detrussor muscle in contracted, what does the parasympathetic stimulation cause?
Definition
stimulates releases internal sphincter
Term
What part of the brain has control over the voluntar control of the external sphincter?
Definition
Cerebral cortex
Term
What is incontinence?
Definition
Uncontrolled urination
Term
What is Vesicoureteral reflux?
Definition
Urine from bladder to ureter causes reflux into ureters that increases kidney pressure and causes infections
Term
What causes the color of urine?
Definition
Urochroms- a bile pigment from hemoglobin, bilirubin
Term
What is pH of urea?
Definition
6
Term
What changes the pH of urea?
Definition
Protein diet, acidic; vegetable diet, basic
Term
What is the specific gravity of urea?
Definition
1.--1 to 1.035 compared to water at 1.0
Term
What is the chemical composition of urea?
Definition
95% water and 5

95% water and 5% solutes
Term
What are the solutes in urea?
Definition
5%- urea from amino acids, uric acid from nuclei acids, and creatine from creatine phosphate, Na+, K=, phosphate, bicarbonate
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