PSYC10003 Lecture Notes - Lecture 4: Myelencephalon, Abdominal Cavity, Tonotopy
Document Summary
The neural axes (directions: rostral (anterior): toward the beak, caudal (posterior): toward the tail, dorsal (superior): toward the back, ventral (inferior): toward the belly. Development of the cns: begins 18 days after conception, 28 days after conception: the neural tube has differentiated to form three interconnected chambers, destined to become the ventricles, surrounding tissue will for the forebrain, midbrain and hindbrain. Histogenesis of the cortex: cortex develops from the inside out, positions of cell bodies, axons and dendrites determine the six layers of the neocortex. Greyish-brown appearance: two hemispheres are asymmetrical, central sulcus: distinguishes between frontal and parietal love. Cortical development: primary motor area, the primary somatosensory area and the primary visual area mature relatively early in life, the prefrontal cortex and parietal cortex do not mature until relatively later on in life. Senses are usually received in the brain contralaterally, aside from olfaction and gustation (smell and taste).
