. The cat : an introduction to the study of backboned animals, especially mammals. Cats; Anatomy, Comparative. 2C6 THE CAT. [CHAP. IX. outer wall or bag of the cerebrum enclosing the lateral ventricles. Filling up the interval between the corpus callosum and fornix is a double membrane called the septum lucidum, a space called the fifth ventricle being included between its two layers. Below the fornix we have evidently cut into a cavity extending down into the infundibulum and bounded in front by the lamina terminalis. This cavity is called the third ventricle. A small aperture (the foramen of
. The cat : an introduction to the study of backboned animals, especially mammals. Cats; Anatomy, Comparative. 2C6 THE CAT. [CHAP. IX. outer wall or bag of the cerebrum enclosing the lateral ventricles. Filling up the interval between the corpus callosum and fornix is a double membrane called the septum lucidum, a space called the fifth ventricle being included between its two layers. Below the fornix we have evidently cut into a cavity extending down into the infundibulum and bounded in front by the lamina terminalis. This cavity is called the third ventricle. A small aperture (the foramen of Monro) opens immediately behind the. Fig. 129.—The Brain, as seen when a vertical longitudinal section has been MADE THROUGH ITS MIDDLE. etc. Anterior commissure. av. Arbor vitse of cerebellum. c. Crucial sulcus. cm. Corpus albicans. cc. Corpus callosum. cq. Corpora quadrigemina. F. Frontal lobe of cerebrum. /. Fornix. fm. Foramen of Monro (between the fornix and the corpus callosum is the fifth ventricle, enclosed by the two vertical layers of the septum lucidum, which pass from the lornix to the corpus callosum). Ji. Hippocampal gyrus. riii. Medulla oblongata. ol. Olfactory lobe. pv. Pons Varolii. p. Pineal gland. pt. Pituitary body. s. Superior external gyrus. v. Velum interpositum (between it and the fornix is a space enclosed by the folding over of the cerebrum upon the roof of the third ventricle). 3. Third ventricle. 4. Anterior end of fourth ventricle. II. Optic nerve, which leads back to the fourth ventricle beneath the cerebellum. The large white spot above Fig. 3 is the middle, or soft commissure, cut across. The white spot beneath and in front of Fig. 3 is the cut surface of the optic chiasma. anterior part of the fornix, and a little behind this aperture is the cut edge of a bundle of transverse fibres which form what is called the soft (or middle) commissure. The third ventricle is bounded above by a delicate membrane, the velum interpositum, which consists onl
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectanatomy, bookyear1881
