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Diagram illustrating the general relationships of the parts of the brain. Labels: A, fore-brain; b, mid-brain; B, cerebellum; C, pons Varolii; D, medulla oblongata; B,c,and D together constitute the hind-brain.

Brain

Diagram illustrating the general relationships of the parts of the brain. Labels: A, fore-brain; b,…

The brain from the left side. Labels: Cb, the cerebral hemispheres forming the main bulk of the fore-brain; Cbl, the cerebellum; Mo, the medulla oblongata; P, the pons Varolii; *, the fissure of Sylvius.

Brain

The brain from the left side. Labels: Cb, the cerebral hemispheres forming the main bulk of the fore-brain;…

The brain of a human embryo in the fifth week. A, Brain as seen in profile. B, Mesial section through the same brain. Labels: M, mammillary eminence, Tc, tuber cinereum; Hp, Hypophysis (pituitary diverticulum from buccal cavity); Opt, optic stalk; TH, optic thalamus; Tg, tegmental part of mesencephalon; Ps, pars subtalamica; Cs, corpus striatum; FM, foramen of Monro; L, lamina terminalis; RO, recessus opticus; RI, recessus infundibuli.

Brain of Embryo

The brain of a human embryo in the fifth week. A, Brain as seen in profile. B, Mesial section through…

"Diagram of Vertebrate Encephalon ... in longitudinal vertical section. Mb, mid-brain; in front of it all is forebrain, behind it all is hind-brain; laminaterminalis, represented by the heavy black line in upper figure; Olf, olfactory lobes; Hmp, cerebral hemispheres; ThE, thalamencephalon; Py, pituitary body; FM, foramen of Monro; CS, corpus striatum; Th, optic thalamus; CQ, corpora quadrigemina; CC, crura cerebri; Cb, cerebellum; PV, pons Varolii; MO, medulla oblongata; I, olfactory nerves; II, optic nerves; III, point of ext from brain of the oculimotores; IV, of the pathetici; VI, of the abducentes; V-XII, origins of other cerebral nerves; 1, olfactory ventricle; 2, lateral ventricle; 3, third ventricle; 4, fourth ventricle." -Whitney, 1911

Encephalon

"Diagram of Vertebrate Encephalon ... in longitudinal vertical section. Mb, mid-brain; in front of it…

"Diagram of Vertebrate Encephalon ... in horizontal section. Mb, mid-brain; in front of it all is forebrain, behind it all is hind-brain; Lt, laminaterminalis; Olf, olfactory lobes; Pn, pineal body, or conarium; M, foramen of Monro; CS, corpus striatum; Th, optic thalamus; Cb, cerebellum; MO, medulla oblongata; I, olfactory nerves; II, optic nerves; 1, olfactory ventricle; 2, lateral ventricle; 3, third ventricle; 4, fourth ventricle; + is in the iter e tertio ad quartum ventriculum." -Whitney, 1911

Encephalon

"Diagram of Vertebrate Encephalon ... in horizontal section. Mb, mid-brain; in front of it all is forebrain,…

Two cross sections through the forebrain. A. Through the forebrain of the early human embryo. B. Through the forebrain and optic vesicles of Lepidosteus embryo of eight days.

Section Through Forebrain of Human and Lepidosteus Embryos

Two cross sections through the forebrain. A. Through the forebrain of the early human embryo. B. Through…