联系我们联系我们
The brain stem is the lower portion of the brain that is continuous with the spinal cord. Three components comprise the brain stem, with the pons lying inferior to the midbrain and superior to the medulla oblongata. The posterior margin of the pons is divided from the cerebellum by the fourth ventricle and the aqueduct of Sylvius.
对不起,此内容在您的国家不适用。
您即将被转换到我们的本地网站。