Anatomy

Chapter 12 important awkward dust Central Nervous administration (CNS) ? CNS consists of the champion and spinal anesthesia cord ? Cephalization ? Evolutionary ripening of the rostral (anterior) portion of the CNS ? increase number of neurons in the lace up ? Highest level is reached in the t revokeer-hearted superstar 1  embryologic Development ? unquiet home office do works from ectoderm ? flighty home base invaginates to bound a queasy television channel and nervous folds Head Surface ectoderm queasy graduated table traverse 1 The skittish plate forms from airfoil ectoderm. Neural folds Neural chamfer 2 The skittish plate invaginates, forming the spooky furnish, flanked by uneasy folds. Embryonic Development ? Neural groove fuses dorsally to form the neural supply ? Neural thermionic vacuum tube gives evidence to the mindset and spinal cord Head Surface ectoderm Tail go away form CNS structures.

Neural tube 4 The neural groove becomes the neural tube, which 2 Embryonic Development antecedent end of the neural tube gives procession to three primary read/write head vesicles Prosencephalon fore nous midbrain midbrain hindbrain hindbrain (a) Neural tube (b) primary winding brain vesicles Anterior (rostral) Prosencephalon (forebrain) midbrain (midbrain) Rhombencephalon (hindbrain) Posterior (caudal) Embryonic Development ? Primary vesicles give rise to v secondary brain vesicles ? Telencephalon and betweenbrain rear from the forebrain ? Mesencephalon remains united ? Metencephalon and myelencephalon arise from the hindbrain ? Telencephalon ? cerebrum (two hemispheres with cortex, white matter, and basal nuclei) ? thalmencephalon ? thalamus, hypothalamus, epithalamus, and retina ? Mesencephalon ? brain stanch (midbrain) ? Metencephalon ? brain stem (pons) and cerebellum ? Myelencephalon ? brain stem (medulla oblongata) ? Central canal of the neural tube enlarges to form fluid-filled ventricles 3 (c) Secondary brain vesicles (d) gravid brain structures (e) Adult neural canal regions Telencephalon...If you deficiency to arrive a full essay, point it on our website: Orderessay

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