n. 1. A nonmetallic element, such as arsenic, that has some of the chemical properties of a metal. Most metalloids behave as semiconductors. 2. A nonmetallic element, such as carbon, that can form an alloy with metals. adj. also metÂ·alÂ·loiÂ·dal (mÄtâ²l-oidâ²l). 1. Relating to or having the properties of a metalloid.
It is your right part of your brain.The right part of the brain controls speech and emotions.Left controls movement and the necessery thinking. The limbic system controls human emotion. It includes the hippocampus, amygdala, anterior thalamic nuclei, and limbic cortex and forms the inner border of the cortex. The frontal cortex.
Another part of the brain that seems to be affected by stress is the amygdala -- the part of the brain that regulates fear and other emotions. A 2003 study found that in mice under stress, the amygdala grew larger while the dendrites in the hippocampus shrank.