The vagus nerve and the heart. Fibres of the vagus nerve (right/bottom of image) innervate the sinoatrial node tissue (central and left of. image). H&E stain. Parasympathetic innervation of the heart is mediated by the vagus. nerve. Specifically, the vagus nerve acts to lower the heart rate.
1 An 8-pound newborn drinks about 2 ounces at a time, roughly 10 times a day. 2  A 14-pound 4-month-old drinks 4 to 5 ounces at a time about six to eight times a day.  A 16-pound 6-month-old drinks 5 to 6 ounces at a time, roughly five times a day, in addition to eating some baby food.
Good dairy alternatives are almond milk, other nut milks, coconut milk, etc. Your baby doesnât need 20 ounces of these per day, but theyâre okay for drinking or adding to meals when you would otherwise add dairy. Once your baby is 12 months old, her liquid intake can come from breast milk, clean water, fresh juices, or alternative milks.