HUMAN BRAIN

Your brain is much better than you think; just use it. Leonardo Da Vinci

The human brain is the command center for the human nervous system. It recieves input from the sensory organs and sends output to the muscles.

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The large part of the brain is the cerebrum, which is divided into two hemispheres. Underneath lying the brainstem , and behind that sits cerebellum. The our most layer of the cerebrum is the cerebral cortex, which consists of four lobes, the frontal lobe, the parietal lobe, the temporal lobe and the occipital lobe.

The cerebral cortex is greatly enlarged in human brain, and it’s considered the seat of complex thought. The frontal lobes are associated with higher level functions such as self control , planning,logic and abstract thoughts . Visual process takes place in the occipital lobe, the temporal lobe process sound and language, and includes hippocampus and amygdala, which play roles in memory and emotions, respectively. The parietal lobe integrates input from different senses and it is important for spatial orientation and navigation.

The brainstem connects to the spinal cord and it consists of medulla oblongata, ponds and midbrain. Relaying information between the brain and the body, supplying some of the cranial nerves to the face and head , and performing critical functions in controlling the heart, breathing and consciousness .

Between the cerebrum and brainstem lie the thalamus and hypothalamus. The thalamus relaying sensory and motor signals to the cortex and it is involved in regulating consciousness, sleep and alertness. The hypothalamus connects the nervous system to the endocrine system where hormones are produced via pituitary gland.

The cerebellum lies beneath the cerebrum and has important functions in motor control. It plays a role in coordination and balance and may also have some cognitive functions.

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