Mid-sagittal magnetic resonance image of the equine brain.

acc: corpus callosum artery, ah: adenohypophysis, Ans: ansate sulcus, aq: mesencephalic aqueduct, boc: basioccipital bone, bsp: basisphenoidal bone, cam: ammon’s horn, cc: corpus callosum, ccc: commissure of the caudal colliculus, ccd: caudal commissure, ccma: caudal communicating artery, cho: optic chiasm, chp: choroid plexus, cig: cingulate gyrus, cin: cingulum, cl: central lobule, crt: rubro-cerebello-thalamic tract, cu: culmen, de: declive of the vermis, drp: decussation of the rostral cerebellar peduncles, dtn: decussation of trochlear nerve, Eng: endogenual sulcus, Enm: endomarginal sulcus, Espl: ectosplenial sulcus, flm: medial longitudinal fasciculus, fo: fornix, fol: folium of the vermis, Fp: primary fissure, Fpc: praeculminate fissure, gcc: genu of the corpus callosum, Gen: genual sulcus, icvs: intercavernous sinus, inf: infundibular stalk, ipd: interpeduncular nucleus, li: lingula of the vermis, lt: terminal lamina, mb: mamillary body, nf: fastigial nucleus, nh: neurohypophysis, no: nodulus of the vermis, obx: obex, pb: pineal body, po: pons, prr: prorean gyrus, psi: pars intermedia of the pituitary gland, py: pyramis of the vermis, pyr: pyramidal tract, rc: rostral commissure, rca: rostral cerebral artery, rcc: radiation of corpus callosum, rccl: rostrum of the corpus callosum, rpb: recess of the pineal body, roc: rostral colliculus, scc: splenium of corpus callosum, Scf: secondary fissure, scg: subcallosal gyrus, Scl: sulcus of corpus callosum, sl: lateral septal nuclei, smt: stria medullaris thalami, sn: septal nuclei, Spl: splenial sulcus, Sspl: suprasplenial sulcus, th: thalamus, tu: tuber vermis, uv: uvula of the vermis, 3: third ventricle, 4: fourth ventricle. asterisk: blind ending medullary branches, uncovered with cortex.