《英文msh词典》Area Postremas
[入口词] Area Postremas
[主题词] Area Postrema
[英文释义] A small,rounded eminence on each side of the FOURTH VENTRICLE,which receives nerve fibers from the SOLITARY NUCLEUS ,SPINAL CORD,and adjacent areas of the MEDULLA. The area postrema lies outside the BLOOD-BRAIN BARRIER and its functions include acting as an emetic chemoreceptor.