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THE NERVOUS SYSTEM [ WORKING TOGETHER/SEEING THE BALL ( WHAT IS PLEASURE? ) ]

THE NERVOUS SYSTEM [ WORKING TOGETHER/SEEING THE BALL ( WHAT IS PLEASURE? )] WORKING TOGETHER How do all of these systems central and peripheral, somatic and autonomic and receptors work together in the symphony of the brain? From simple actions to complex ones, these systems must work in concert. Consider the “simple” act of catching…

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DEGREES OF PAIN [ THE NERVOUS SYSTEM ]

DEGREES OF PAIN [ THE NERVOUS SYSTEM ] Similar pains don’t always register with the same intensity. Although nearly all humans-besides the very few who lack the ability to feel pain recognize extreme heat or a deep cut as painful, they can react differently. Some tolerate pain more easily, whereas others feel it more intensely….

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PATHWAYS / GRAY MATTER [ MESSENGERS ( NERVOUS SYSTEM ) ]

PATHWAYS / GRAY MATTER [ MESSENGERS ( THE NERVOUS SYSTEM ) ] PATHWAYS Pain signals take rwo tracks on their way to the brain. The express line, like a nonstop train between cities, sends signals through the spinal cord and connects directly to the thalamus. While some pain signals are diverted along the way, those that…

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BIG PAIN [ MESSENGERS ( THE NERVOUS SYSTEM ) ]

BIG PAIN [ MESSENGERS ( THE NERVOUS SYSTEM ) ] It turns out, the brain has automatic defenses cued up for a quick response to more serious pain. The perception of pain warns the brain of actual or potential tissue damage. The brain’s recognition of pain sets in motion actions to reduce or remove it,…

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PAIN GATEWAY [ MESSENGERS ( THE NERVOUS SYSTEM ) ]

PAIN GATEWAY [ MESSENGERS ( THE NERVOUS SYSTEM ) ] The nervous system does have natural responses that can ease minor pains, like the sting of a scrape or ache of a bump. When you were a child and trying to learn to roller-skate, perhaps you once fell and skinned your knee. To stop your…

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RECEPTION [ MESSENGERS ( THE NERVOUS SYSTEM ) ]

RECEPTION [ MESSENGERS ( THE NERVOUS SYSTEM ) ] A healthy brain needs a constant stream of incoming information. Picture what happens without it: When volunteers enter a sensory deprivation tank a body temperature pool of water in which they are forced to go without sights, sounds, smells, tastes, and skin sensations they begin to…