Neural Control and Coordination — BIOLOGY STD 11 Science — Question

The forebrain consists of cerebrum, thalamus and hypothalamus. The cerebrum contains motor areas, sensory areas and large regions that are neither clearly sensorv nor motor in function. These regions known as the association areas are responsible for complex functions like intersensory associations, memory and communication. Thalamus is a major coordinating centre for sensory and motor signaling. The hypothalamus contains a number of centers which control body temperature, urge for eating and drinking’s It also contains neurosecretory cells which secrete hypothalamic hormones. The inner parts of cerebral hemisphere and a group of associated deep structures like amygdale, hippocampus etc. form a complex structure called the limbic system. Hypothalamus and limbic system are involved in the regulation of sexual behavior, expression of emotional reactions and motivation.