PSY210H5 Chapter Notes - Chapter 5: Asthma, Twin, Binge Eating
Document Summary
In prenatal period, the brain grows rapidly, and it continues to grow at an amazing pace. By the time the baby is about 6 months old, his brain weighs half of what an adult brain weighs, and the brain of an adult weighs 75% as much as an adult. Cerebrum the two connected hemispheres of brain (largest portion of human brain) Cerebral cortex the covering layer of the cerebrum that contains the cells that control specific functions, such as seeing, hearing, moving, and thinking. Neuron proliferation the rapid proliferation of neurons in the developing organism"s. Neurons and synapses: during embryonic period, neurons multiply about 250,000 neurons every minute. Glial cell a nerve cell that supports and protects neurons and serves to encase them in. Myelination the process by which glial cells encase neurons in sheaths of the fatty brain sheaths of myelin substance myelin.
