Pysifr

Hi, I am confused by the sentence on juxtaglomerular cells - are they granular or not? It is written "They are also known as juxtaglomerular cells (juxtaglomerular cells are not granular cells but are granulated as they release renin)." I do not know what this means - it has two meanings (a) juxtaglomerular cells are not granular cells: (b) juxtaglomerular cells are not granular but only become granulated as they release renin. Whatever the sentences means, it contradicts what is written at https://en.wikipedia.org/wiki/Granular_cells there we are told (1)(JG cells, or granular cells) ie they are the same thing - so contradicts (a) above? (2)"In appropriately stained slides, juxtaglomerular cells are distinguished by their granulated cytoplasm." so contradicts (b) above Pysifr (talk) 07:43, 23 September 2013 (UTC)

Bier Block, Intravenous Regional Anaesthesia

The article is fine, as it goes, but it is missing an important piece of information. If peripheral veins have valves, how does drug flow back, against the one way valves, and reach the venules and capillaries and then to the tissues?

Pysifr (talk) 09:01, 10 January 2016 (UTC)