Some muscles (skeletal muscles) will not contract unless stimulated by neurons; other muscles (smooth & cardiac) will contract without nervous stimulation but their contraction can be influenced by the nervous system. Thus, the nervous and muscle systems are closely interconnected.
A Roth IRA is an individual retirement plan that is subject to rules that would apply to a traditional IRA, but with some exceptions [source: IRS ]. Contributions are not tax deductible and qualified distributions are tax free. Here are some of the things you must consider when setting up a Roth IRA account:1  The account must be designated as a Roth IRA when it's opened. 2  The account can be opened at any time. 3  Contributions can be made at any age.ontributions are not tax deductible and qualified distributions are tax free. Here are some of the things you must consider when setting up a Roth IRA account: 1  The account must be designated as a Roth IRA when it's opened. 2  The account can be opened at any time.
There is no age minimum for opening a Roth. The requirement (as far as kids are concerned) is that contributions to a Roth IRA must be from eligible earned income, and contributions cannot exceed annual income. Translation â if your kid does not earn any money, you cannot open and fund a Roth IRA for them.o in 2010, a single person cannot contribute more than than $5,000 to a Roth IRA. However, some brokerages, like Fidelity as an example, may require your child to be 18 years old. In that case, you need to find a broker who will allow them to open an account.