Psycho medicine

  The midbrain   -The midbrain, mesencephalon, connects the hindbrain with the forebrain. -Its cavity is known as the cerebral aqueduct (aqueduct of Sylvius),  aqueductus cerebri : connects the third ventricle with the fourth. midbrain connects the pons and diencephalon conveys  motor impulses  from the cerebrum to the cerebellum and spinal cord, sends  sensory impulses  from the spinal cord to the thalamus regulates  auditory and visual reflexes . It also contains the nuclei of origin for  III and IV cranial  nerves.   External structure posterior (inferior) part of the midbrain is formed by cerebral peduncles,  pedunculi cerebri The anterior (superior) part is the  tectum  with  lámina quadrigémina. it is made of the superior and inferior colliculi , colliculi superiores et inferiors Each of the colliculus is connected to the appropriate  geniculate body of the metathalamus  (the diencephalon). superi...

   The telencephalon The telencephalon or endbrain It controls human mental and intellectual activity. The telencephalon includes the cerebral hemispheres their commissures and cavities Each cerebral hemisphere has an  external  layer of neurons, the  cortex  or  pallium , an internal mass of neuronal processes, deeply situated  basal nuclei  (núclei basáles) and rhinencéphalon.   The  lateral ventricles  (ventriculi lateráles) are the  cavity  of the telencephalon. Two hemispheres are connected by  córpus callósum  that consists of  transverse white fibers . Anterior part of the corpus callosum flexes inferiorly and forms the genu,  génu córporis callósi . Under the corpus callosum is  fórnix , which consists of two bundles of white fibers.       - Anteriorly these fibers diverge and form  colúmnae fórnicis , - posteriorly –  crúrae fórnicis. - Between colú mnae fórni...