Br-aaaaaa-in-ssss! Let's do a recap on why zombies love brains too much: 1. Brains contain memories, 2. Brains think of magnificent ideas and last but not the least, brains are tasty for it is the most mysterious body part!
But what is "brain"? Brain is an organ of the body in the head that controls functions, movements, sensations, and thoughts. Yep, brains are absolutely like remote controls! It has 3 anatomical divisions: Forebrain that contains the cerebrum, thalamus and hypothalamus, Midbrain, which is a part of the brainstem and Hindbrain that contains the pons, medulla oblongata and cerebellum.
Cerebrum, cerebellum and the brainstem are considered as the three main parts of the human brain. Cerebrum is the largest part which makes up 85% of the brain’s …show more content…
An adult brain contains about 100 billion nerve cells or neurons. But these cells need to communicate so that the brain can function well. If humans use words to communicate, while the dogs bark, bees dance and birds sing, neurons communicate with neurotransmitters! These neurons communicate with each other by sending signals in the form of tiny electrical charge that travel through their branches forming synapses. When a charge reaches a synapse, it may trigger release of tiny bursts of chemicals called neurotransmitters. Yes! Neurotransmitters are chemicals, but you can think of them as the words that neurons use to talk to each other.
Just like words, there are lots of neurotransmitters, and each one has a special meaning. Some cause you to feel specific emotions, like dopamine and serotonin which are “happy” chemicals causing feeling of pleasure and reward. If you don’t have enough serotonin, you feel sad and depressed. Some neurotransmitters help you learn, just like glutamate which is responsible for learning and memory. Others move your muscles by releasing the chemical acetylcholine or make you feel sleepy through the chemical