4. Yachatz (Breaking the Matzah) - There is always a plate of three matzot (plural of matzah) on the table during a seder. (These matzot are part of the ritual meal-there are other matzot elsewhere to feed the seder guests.) At this point the seder leader takes a piece from the middle of the plate and breaks it in half.The smaller piece is put back between the remaining two matzot.These matzot are part of the ritual meal-there are other matzot elsewhere to feed the seder guests.) At this point the seder leader takes a piece from the middle of the plate and breaks it in half. The smaller piece is put back between the remaining two matzot.
Nerve fibres of the parasympathetic nervous system arise from the central nervous system. Specific nerves include several cranial nerves, specifically the oculomotor nerve, facial nerve, glossopharyngeal nerve, and vagus nerve. Three spinal nerves in the sacrum (S2-4) also act as parasympathetic nerves.he vagus nerve is an unusual cranial parasympathetic in that it doesn't join the trigeminal nerve in order to get to its target tissues. Another peculiarity is that the vagus has an autonomic ganglion associated with it at approximately the level of C1 vertebra. The vagus gives no parasympathetic to the cranium.
The longest cranial nerve in the body, the vagus nerve regulates both the heart and the digestion. Although spoken of as if it is one nerve, the vagus nerve includes both a right and left vagus nerve. It regulates the parasympathetic nervous system, the calming, relaxing system of the body. Proper vagus nerve function influences the following: 1) Digestion: The vagus nerve innervates digestive organs involved in everything from swallowing to intestinal motility.