Anatomy Of The Brain

Anatomical Model Showing The Exterior Of The Human Brain Or Encephalon Inferior View. The Encephalon Is Composed Of The Diencephalon, Covered By The Cerebrum Flesh Colored. The Cerebellum In Brown And The Brain Stem In White Lie Under The Cerebrum. The Brain Stem Is Connected To The Spinal Cord In White, Which Carries Nerve Impulses Throughout The Organism. The Brain Is Divided By A Longitudinal Fissure Into Two Hemispheres, Each Of Which Is Composed Of Four Lobes The Frontal Anterior Region, At The Top Of The Picture, Parietal Superior Region, Temporal Lateral Region And Occipital Posterior Region Lobes. The Temporal Lobe Is Bordered By The Lateral Sulcus. The Cerebral Cortex Has A Number Of Bumps Or Ridges, Known As Gyri, Separated By Folds Known As Sulci. Below The Encephalon, The Pituitary Gland 25, In Orange, Synthesizes A Number Of Hormones. The Diencephalon, Internal Region Of The Encephalon, Is Composed Of The Thalamus, The Hypothalamus, The Epithalamus And The Subthalamus. Above The Brain Stem Is Found The Mamillary Region, The Posterior Portion Of The Hypothalamus In White, Adjacent To The Mesencephalon. The Mamillary Bodies Next To The Pituitary Gland Are Two Protuberances Which Serve To Relay Reflexes Linked To Olfaction. The Brain Stem In White Is Made Up Of The Mesencephalon, Followed By The Pons 36 And The Medulla Oblongata 37. The Mesencephalon Has Two Anterior Bundles Known As The Cerebral Peduncles, Followed By The Tegmentum Mesencephalicum 33. The Pons 36 Links The Different Parts Of The Brain, Including Areas Which Regulate Respiration. The Medulla Oblongata 37 Contains Nerve Fibers Which Connect The Spinal Cord Directly To The Brain. It Is Made Up Of Two Bulges Known As The Pyramids Of The Medulla 39, At The Intersection Of The The Largest Motor Nerve Bundles. The Olives 38 Are Located Lateral To The Pyramids And Contain Nerve Cell Nuclei. The Bra (Photo By BSIP/UIG Via Getty Images)