simplified sentences

[aksamgunesi]

This system controlled by renin, a hormone produced in the kidney that is part of the fluid and blood pressure regulation systems of the body.

Is this sentence right as gramatically? Shouldn't it be as 'a hormone is produced in the kidney...'?
How should I understand if a sentence is simplified?

 

[emsr2d2]

This system controlled by renin, a hormone produced in the kidney that is part of the fluid and blood pressure regulation systems of the body.

Is this sentence [STRIKE]right as[/STRIKE] grammatically correct? Shouldn't it be as 'a hormone is produced in the kidney...'?
How should I understand if a sentence is simplified?

I think the word "is" has been omitted after "This system". The rest is OK as written.

I don't understand your final question. Are you trying to work out if the original sentence has already been simplified? Are you asking how to recognise a "simplified sentence"?

 

[aksamgunesi]

Yes, I can't recognize if a part of a sentence has been omitted.

I think the word "is" has been omitted after "This system". The rest is OK as written.

I don't understand your final question. Are you trying to work out if the original sentence has already been simplified? Are you asking how to recognise a "simplified sentence"?

 

[SoothingDave]

You can imagine the sentence like this to help you understand. "...renin, a hormone which is produced..."

There should be a comma after "kidney."

 

[Tarheel]

This system controlled by renin, a hormone produced in the kidney that is part of the fluid and blood pressure regulation systems of the body.

You could read it as if "that is" comes after "renin" if that helps. However, there is nothing wrong with that "sentence" (a very common construction).