If you are asking for cell biology, âChiasmaâ is a point of overlap of paired chromatids at which fusion and exchange of genetic material take place during prophase of meiosis. And if you are asking for Anatomy then, It is the X-shaped structure formed at the point below the brain where the two optic nerves cross over each other.
Symptoms Of Vagus Nerve Disorder. The vagus nerve innervates critical organs, such as the heart and lungs, making vagus nerve disorders serious. The symptoms of vagus nerve disorder can include cardiac, gastrointestinal, and sensory problems. Introduction to the Vagus Nerve The vagus nerve is the paired tenth cranial nerve that branches out from the brain and supplies parts of the gastrointestinal system such as the stomach, and parts of the respiratory system such as the lungs.
The symptoms of peripheral nerve hyperexcitability. The primary symptoms caused by peripheral nerve hyperexcitability (PNH) is involuntary muscle fibre activity in the form of muscle twitches(fasciculations), cramp and cramp like feelings, along with muscular aches, pain, soreness and discomfort.he symptoms of peripheral nerve hyperexcitability. The primary symptoms caused by peripheral nerve hyperexcitability (PNH) is involuntary muscle fibre activity in the form of muscle twitches(fasciculations), cramp and cramp like feelings, along with muscular aches, pain, soreness and discomfort.