. Chordate morphology. Morphology (Animals); Chordata. corpus caliosum septum lucidum invagination of roof into ventricle of cerebrum sulcus gyrus (cingulate) fornix anterior commissure lamina terminolis olfactory bulb anterior perforate substance temporal lobe foramen of Monroe intermediate moss of thalamus roof of diencepholon hippocompal commissure third ventricle habenular commissure pineal. posterior commissure corpora quodrigemina (midbrain) cerebellum dentate nucleus optic nerve optic chiasmo' pituitary tuber cinereum oculomotor nerve (111) red nucleus substantia niger reticular body wi
. Chordate morphology. Morphology (Animals); Chordata. corpus caliosum septum lucidum invagination of roof into ventricle of cerebrum sulcus gyrus (cingulate) fornix anterior commissure lamina terminolis olfactory bulb anterior perforate substance temporal lobe foramen of Monroe intermediate moss of thalamus roof of diencepholon hippocompal commissure third ventricle habenular commissure pineal. posterior commissure corpora quodrigemina (midbrain) cerebellum dentate nucleus optic nerve optic chiasmo' pituitary tuber cinereum oculomotor nerve (111) red nucleus substantia niger reticular body with cranial nerve nuclei chorioid plexus over fourth ventricle spinal cord Figure 13-1. Semidiogrommatic medial aspect of right half of a human brain. The two hemispheres are joined across the midline above the level of the diencephalon by a corpus caliosum formed of transverse fibers. This structure is characteristic of the placental brain and is derived from the pallial commissure of the opossum, the monotreme, or the reptile (Figures 13- 2, 13-4). Hanging down from the corpus caliosum are bilat- eral tracts identified as the fornix. These are suspended by a septum lucidum. Below the corpus caliosum, in the ante- rior wall of the brain (the lamina terminalis) is the anterior commissure. Below this and anterior to it are the olfactory bulbs and nerve. The posterior limit of the telencephalon is marked ven- trally by the preoptic recess, a thinning of the floor just anterior to the optic chiasma. Dorsally there is no marker, but the ingrowing chorioid tissue probably represents the velum transversum which separates the telencephalon and diencephalon of the embryo. The roof of the diencephalon is modified into a chorioid plexus which extends down into the third ventricle and through the foramina of Monroe into the lateral ventricles of the cerebral lobes. Behind this membranous roof is a pineal organ. This organ is derived from the epiphyseal diverticulum. Ventrally and anteriorl
Size: 1690px × 1479px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
