Best of luck

Best of luck for semester exams to all the students...

Work hard, perform good

Sleep satisfied

Role of kidney in acid base balance

This is the last topic of renal system before the exams.

Little difficult to understand.

But remember the KISS principle (Keep It Simple, Stupid!)

Any problem, be proactive and ask. We can help you only when u r ready to ask.

I will post the questions after your exams as this topic is not included in the exam portion.

Be alive, be kicking (not in literal sense)

How to download the powerpoint from the blog

I have been taking feedback from u ppl

It was a common problem, that u r unable to download the powerpoint.

This is a descrition of how to do that.

The picture below shows the appearance of uploaded ppt.

You have to click on  the mark jyst besides the arrow and it will open a menu asking whether u want to download a copy. . When u click on 'download the copy' ppt will start downloading.
.
Hope this helps.

If there is any other problem, plz let me know.

Tubular function continued

Glomerular filtrate quantity 180L /day

Urine formation - 1-2 L/day

The composition of glomerular filtrate and urine are very different.

So, its the tubule in between which is changing the quantity and the quality of the tubular fluid.

What does it do ?

How it does that ?

Is it regulated ?

Proximal tubule sodium , glucose, amino acid and water reabsorption.....

Intercalated cells secrete hydrogen

Principal cell secrete potassium.

Triggers - basics...read and discuss if not on post individually

Some triggers, which students must know for understanding the basics of excretory system and rather every system

1.Forces driving passive transport of uncharged and charged solute

2. Forces driving passive transport of solvent

For excretory:

Tubuloglomerular feedback....A must must know

Forces driving filtration of fluid through glomerular barrier (easier to understand if you know point no. 2)

Layer of glomerular barrier to filtration

See if you have any problem with these.....you can post ur query or you can ask in person

Can you solve these MCQ's on tubular function and GFR, before downloading the powerpoint.

1. What is Glomerular capillary hydrostatic pressure?
   a) 20 mmHg
   b) 30 mmHg
   c) 40 mmHg
   d) 50 mmHg
   e) 60 mmHg
2.  Which of the following would cause an increase in both glomerular filtration rate（GFR）and renal plasma flow（RPF）？                                      

       A. Hyperproteinemia                    

   B. A ureteral stone

      C. Dilation of the afferent arteriole         

   D. Dilation of the efferent arteriole

      E. Constriction of the efferent arteriole

     3.  Glucose reabsorption occurs in the                                    

        A. proximal tubule              

        B. loop of Henle           

        C. distal tubule

4.   Regarding the renal circulation

a) The kidneys receive about 10% of the resting cardiac output

b) As cardiac output increases during exercise renal blood flow rises

c) Renal blood flow is maintained within narrow limits despite changes in arterial blood pressure

   d) Increased activity in the renal sympathetic nerves results in increased blood flow to the kidneys.

Give reason why you select one answer and not the others . 

Triggers for next class for MGMCRI students

Clearance - Inulin
                - PAH

Tubular transport maximum

Splay

Concentration of substances along length of tubule -- Why does it vary

Glomerular filtration

Please go through the powerpoint and get your concepts clear about forces and factors affecting GFR.

It is one of the most common question asked from renal system .

Q . Can high protein diet affect glomerular filtration rate ?.....Answer appears simple but there is a catch.....Guyton first chapter on excretory system gives the answer...Go dig it out and answer on the blog .

Thought for the day:

If there is no struggle, there is no strength

Introduction to excretory system

Hi.

I m back to business again.

Now posting powerpoints of excretory system.

This is basically for the students. But can be of help to everybody.

I would be posting questions for students. If they feel they can go for a happening discussion.





Related questions to explore

1. Differences between cortical and juxtamedullary nephrons and physiological importance of the differences.

2. Importance of histological differences of various parts of tubule

3. What is safety factor. How is it applicable to kidney.

Are u up for discussion ?