nerve(s) cells in the human body
that are the building blocks of the nervous system (the system that records and transmits
information chemically and electrically within a person). Nerve cells, or neurons, are
made up of a nerve cell body and various extensions from the cell body that receive and
transmit impulses from and to other nerves and muscles. Nerve tissue in the breast makes
breasts sensitive to touch, allowing the baby's sucking to stimulate the let-down or
milk-ejection reflex and milk production.
nipple the protruding part of the
breast that extends and becomes firmer upon stimulation. In breastfeeding, milk travels
from the milk sinuses through the nipple to the baby.
nipple shield an
artificial latex or silicone nipple used over the mother's nipple during nursing.
nurse-midwife A nurse who
has undergone special training and has received certification on birthing (labor and
delivery). Nurse-midwifes can perform most of the same tasks as physicians and have
emergency physician backup when they deliver a baby.