Bottom brain has eight repeated parts {rhombomere}, with one next to cerebellum and eight near spinal cord. Cells do not migrate from one rhombomere to another. Eighth cranial nerve comes from fourth rhombomere.
Low brain part {lower brain} includes medulla oblongata, pons, and cerebellum.
Above spinal cord, bottom brain {hindbrain}| is medulla oblongata then pons.
Above pons and further forward, rostrally towards nose, are cerebellar peduncles, inferior olive, quadrigeminal plate, nucleus accumbens, red nucleus, substantia nigra, tectum, and midbrain tegmentum {midbrain}|. All midbrain nuclei have ascending and descending axon tracts. Midbrain is for attention, controls aggressiveness, and predicts adjustments to visual perception that will result from movement, using signal {central kinetic factor} that codes displacement direction and speed.
Rostral to midbrain are cerebral-cortex frontal, parietal, temporal, occipital, insular, and limbic lobes, white matter, and basal ganglia {endbrain}.
Front brain {forebrain}| contains cerebrum diencephalon and telencephalon: amygdala, basal ganglia, cortex, hippocampus, olfactory bulb, and thalamus.
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Date Modified: 2022.0225