how/why does water leave the proximal tubule? ? how/why does water leave the descending loop of...
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How/why does water leave the proximal tubule?
?
How/why does water leave the descending loop of Henle?
?
How is urine concentrated?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
How/why does water leave the distal tubule?
How/why does water leave the collecting ducts?
?
?
How is urine concentrated?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
Concentration of urine is dependent on the concentration gradient existing in the kidneys.
Maintained 3 ways
1) _________________:
Both H2O and solutes are lost from loop of Henle (__________________ ____________________).
2) ________________:
Network of capillaries carrying blood in ___________________ of nephron flow
3) ________:
Diffuses into _________ ________________… impermeable until collecting duct… ______ _______________
How is urine concentrated?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
How is urine concentrated?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
How is urine concentrated?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
80% of reabsorption is _____________20% regulated via ________________Who?
What?
Where?
When?
Why?
How?
Posterior pituitary
Changes in _______ and __________
Maintain homeostasis
Cause formation of _____________ in __________ and _____________
You
How is urine concentration regulated?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
Take 2!!!
Discuss with your neighbor and predict
an answer.
Ethyl alcohol (found in alcoholic beverages) inhibits ADH secretion. Since this is so, why/how does consumption of an alcoholic beverage influence urine production?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
Who?
What?
Where?
When?
Why?
How?
Kidneys, blood
Changes in pressure and osmolality
Maintain homeostasis
_____ causes ultimate formation of ___________ which is a __________ AND causes secretion of ______________
You
80% of reabsorption is obligatory20% regulated via hormonal control
How is urine concentration regulated?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
Who?
What?
Where?
When?
Why?
How?
Adrenal glands
______________________ and osmolality
Maintain homeostasis
______________ causes increase in ________ __________ in _________ and ______________.
You
80% of reabsorption is obligatory20% regulated via hormonal control
How is urine concentration regulated?If LOW levels of aldosterone what happens to “salt” levels in filtrate? What happens to osmotic potential?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
Who?
What?
Where?
When?
Why?
How?
Right atrium of heart
High blood volume stretches the chamber
Maintain homeostasis
____________________ inhibits the secretion of _____ and the ______________________ (it also dilates vessels).
You
80% of reabsorption is obligatory20% regulated via hormonal control
How is urine concentration regulated?
What effect does this have on blood volume?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
Who?
What?
Where?
When?
Why?
How?
Afferent arteriole
Changes in blood pressure
Maintain homeostasis
Dilate or restrict afferent arteriole. Controls what pressure?
You
How is urine concentration regulated?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
Who?
What?
Where?
When?
Why?
How?
Small renal arteries and afferent arterioles
Severe stress and/or cardiac shock
Appropriate resources
_______________________ (including afferent arterioles) What happens to filtration pressure?
You
How is urine concentration regulated?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
2 main types:
•___________
•___________ ____________
How is “urine” produced artificially?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
1) ____________ ___________
2) _______ ________ signal _________ & ________
3) Bladder ________ and internal sphincter ________
4) __________ ______________ Bladder Incontinence!
What is involved with micturition?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
Nephritis (acute and chronic)
Renal failure (acute and chronic)
Kidney stones (renal caliculi)
Incontinence (nerve damage, gestational)
Urinary tract infection (cystitis, urethritis)
Diuretics
What are some kidney diseases/disorders?
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
Let’s practice some renal histology!
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II
Let’s practice some renal histology!
BI 203 Human Anatomy & Physiology IIBI 203 Human Anatomy & Physiology II