Neurons, Hormones, and the Brain Thalamus The thalamus is a sensory way station. All sensory information except smell-related data must go through the thalamus on the way to the cerebrum. Hypothalamus The hypothalamus lies under the thalamus and helps to control the pituitary gland and the autonomic nervous system. The hypothalamus plays an important role in regulating body temperature and biological drives such as hunger, thirst, sex, and aggression. Limbic System The limbic system includes the hippocampus , the amygdala , and the septum. Parts of the limbic system also lie in the thalamus and the hypothalamus. The limbic system processes emotional experience. The amygdala plays a role in aggression and fear, while the hippocampus plays a role in memory. Cerebrum The cerebrum , the biggest part of the brain, controls complex processes such as abstract thought and learning. The wrinkled, highly folded outer layer of the cerebrum is called the cerebral cortex. The corpus callosum is a band of fibers that runs along the cerebrum from the front of
This is the end of the preview. Sign up
access the rest of the document.