Nicky Hopkins played the piano on this track. Hopkins was a renowned session player who appeared on tracks for The Who, The Rolling Stones, The Beatles and many others. Robert Plant wrote the lyrics, which were a response to critics who claimed their previous album, Led Zeppelin III, wasn't really rock and roll. Led Zeppelin III had more of an acoustic, folk sound, and Plant wanted to prove they could still rock out.
How to control acid reflux. Next. Making simple lifestyle changes can help you contain the problem. T he most intriguing fact one learns about the stomach is that it secretes acids that are strong enough to burn a hole in your handkerchief.ow to control acid reflux. Next. Making simple lifestyle changes can help you contain the problem. T he most intriguing fact one learns about the stomach is that it secretes acids that are strong enough to burn a hole in your handkerchief.
1 Gastric juice = HCl + pepsin + hormones = secreted by the stomach (parietal and chief cells, and enteroendocrine cells). 2  Pepsin = protease that works best in acidic environment. 3  Goblet cells secrete mucus lining that protect the stomach from the acid and self-digestion.