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a complex combinatin of cells that receive information, integrate that info with previous info to generate choices and decisions and guide actions and output based on those decisions
carry signals away from the neuron to points where communication occurs with other neurons; create action potentials
a fatty substance that wraps around some axons; speed's an action potential's travel down the length of the axon
the very small gap b/t the presynaptic cell sending a message and the postynaptic cell receiving that message
usually located on the dendrites of the postsynaptic cell, are stimulated when neurotransmitters fit into them, like a key
peripheral nervous system
The section of the nervous system lying outside the brain and spinal cord; consisting of nerves spinal and cranial
sympathetic nervous system
mobilizes forces you need when you need to deal with fear; fight-or-flight ; heart beat and adrenaline increase
parasympathetic nervous system
works to conserve your resources; slows organ and gland activity to conserve bodys energy
serves as a routing station; receives sensory info from the rest of the body and decides where in the brain to send it; only the sense of smell skips it and goes straight to the brain.
affects emotional behavior especially agressive and defensive behavior; pleasure center; restrains sexual urges
a system of functionally related neural structures in the brain that are involved in emotional behavior
left cerebral hemisphere
controls right side of body;speech; academics- essays, math,science, writing, language, logical thinking
right cerebral hemisphere
controls left side of body, musical and artistic behavior, perception of space, imgaination, body control ans awareness
a bundle of nerve fibers that helps right and left sides of the brain to communicate
1."reward pathway", pleasure; 2.voluntary movement 3.learning and memory 4. emotion; an increase causes Schizophrenia and a decrease causes Parkinsons
major inhibitory transmitter of the central nervous system; decrease causes Huntington's disease
natural opiate -like compounds, can reduce pain or at least adjust our pain tolerance which is hoe we perceive pain and how we express it; causes sleep
made up of cells that communicate with each other to influence many behaviors and mental processes
chemicals that,when released by the glands of the endocrine system, travel viaa the blood strea and communicate with other cells, thus influencing behavior and mental processes
master gland b/c it controls tons of behaviors such as it regulates growth, controls thyroid, ovverie/testes, pancreas and adrenal cortex; regulates water and salt metabolism
Group of disease that disrupt the function of the immune system, causing the body to produce antibodies against itself, resulting in tissue damage.
The lobe at the front of the brain associated with movement, speech, and impulsive behavior.
portion posterior to the frontal lobe, responsible for sensations such as pain, temperature, and touch
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