The iPhone 6s and 6s Plus are made from a 7000 Series aluminum alloy, which is stronger and more durable than the 6000 series used in the previous-generation iPhones. Apple's also updated the devices with stronger glass, made using a dual ion exchange process.
Sacral Nerves. The brain tells the bladder and bowel what to do by sending electrical signals to the muscles in the pelvic floor, the sphincters, the urethra as well as the bladder and rectal area. The messages or impulses sent by the brain to the pelvic area are carried by a system of special fibres called nerves.
The parasympathetic nerves that regulate digestion for the liver, stomach, pancreas, small intestine, and part of the large intestine are vagus nerves (the tenth cranial nerve). Unlike the splanchnic nerves, these nerves carry messages directly to the brain.he hormones that control digestion are produced and secreted by various organs along the tract. These hormones cause the various chemicals that aid in digestion to be released or prevented from being released.