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 del