Parasagittal magnetic resonance image of the equine brain on the level of the columns of the fornix.

cam: ammon’s horn, cc: corpus callosum, ccc: commissure of the caudal colliculus, ccd: caudal commissure, cec: central canal, cf: column of fornix, cgs: central grey substance, cho: optic chiasm, chp: choroid plexus, cl: central lobule, cn: caudate nucleus, cu: culmen, drp: decussation of the rostral cerebellar peduncles, dtd: dorsal tegmental decussation, dtn: decussation of trochlear nerve, Eng: endogenual sulcus, flm: medial longitudinal fasciculus, fmt: mammillo-thalamic fascicle, fo: fornix, Fp: primary fissure, Fpc: praeculminate fissure, ftp: transverse fibres of the pons, Gen: genual sulcus, hit: habenulo-interpeduncular tract, li: lingula of the vermis, mb: mamillary body, ml: medial lemniscus, nf: fastigial nucleus, no: nodulus of the vermis, olf: olfactory fibres, oli: olivary nucleus, omn: oculomotor nerve, opn: optic nerve, po: pons, py: pyramis of the vermis, rc: rostral commissure, rcc: radiation of corpus callosum, rccl: rostrum of the corpus callosum, Rfi: rhinal fissure, rn: red nucleus, roc: rostral colliculus, scc: splenium of corpus callosum, Scf: secondary fissure, sm: medial septal nuclei, smt: medullary stria of the thalamus, Spl: splenial sulcus, sre: straight sinus, tb: trapezoid body, uv: uvula of the vermis, vtd: ventral tegmental decussation, 4: fourth ventricle.