Please see the discussion on Requests for cleanup for more information and remove this template after the problem has been dealt with. 1  Afep pigeon (Columba unicincta) 2  African owl pigeon (Columba livia domestica) 3  African green pigeon (Treron calvus) 4  African olive pigeon (Columba arquatrix) 5  American pigeon (Patagioenas)
Fatal familial insomnia and sporadic fatal insomnia differ from other prion diseases because they affect predominantly one area of the brain, the thalamus, which influences sleep. The familial and sporadic forms typically begin between the ages of 30 and 50 years.
The nervous system is really complicated, but it can be divided into two really general parts. One is the Central Nervous System (or CNS). The CNS consists of your brain and spinal cord. The brain and spinal cord are inside your skull and vertebrae (the vertebrae make up your backbone).These bones protect the CNS when you get into accidents. The other part of the nervous system is the Peripheral Nervous System (or PNS). The PNS consists mainly of the nerves that go to and from the CNS.he brain and spinal cord are inside your skull and vertebrae (the vertebrae make up your backbone). These bones protect the CNS when you get into accidents. The other part of the nervous system is the Peripheral Nervous System (or PNS). The PNS consists mainly of the nerves that go to and from the CNS.