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.
If you can, choose an online broker. Now that youâve decided to open a Roth IRA, youâd probably like to know how to open one. The mechanics of opening an account are fairly simple, but first you need to decide where you want to park your money.That takes a bit more work, but if you follow a few principles, youâll be investingâwiselyâin no time.f you can, choose an online broker. Now that youâve decided to open a Roth IRA, youâd probably like to know how to open one. The mechanics of opening an account are fairly simple, but first you need to decide where you want to park your money.