Questions and Answers
What is the outer layer of the brain responsible for?
Emotions
What is the primary cause of Huntington’s disease?
Loss of cells in both the cortex and basal ganglia
How many neurons are estimated to be in the brain?
100 billion
Study Notes
- The brain is made up of 100 billion nerve cells, called neurons, and thousands of billions of support cells, called glia.
- Within the brain, large groups of neurons form distinct areas, or brain regions.
- One area of the brain that is particularly associated with psychological disorders is the cortex. The cortex is the outer layer of the brain, and it is responsible for control of important functions, including emotions and memory.
- Clinical researchers have discovered connections between certain psychological disorders and problems in specific areas of the brain. One such disorder is Huntington’s disease, which is marked by violent emotional outbursts, memory loss, suicidal thinking, involuntary body movements, and absurd beliefs.
- Loss of cells in the basal ganglia and cortex is thought to be responsible for Huntington’s disease.
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