Medical Definition of Nerve Nerve: A bundle of fibers that uses electrical and chemical signals to transmit sensory and motor information from one body part to another. The fibrous portions of a nerve are covered by a sheath called myelin and/or a membrane called neurilemma. (Note that entries for specific nerves can be found under the names of the particular nerves. For example, the optic nerve is not under 'nerve, optic' but rather under 'optic nerve.')
My oldest two have been babysitting their younger siblings since they were 13 and 12. Before that, my friendâs daughter babysat (and she was 14 or 15). Itâs really not a big deal. They take turns watching the 3yo, and the other kids pretty much take care of themselves.
But an incident last month in Plano, Texas, sparked important discussions about how old children should be before they are allowed to stay home alone or baby-sit. In mid-August, Shykeema Polk, 13, was home baby-sitting her 6-year-old sister when she heard a crash of glass.