Increases normal ns activity i has the right shape to

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INCREASES normal NS activity i. Has the right shape to MIMIC the neurotransmitter ii. Stops reuptake (so there is more NS for the recieving dendrite than the finished axon terminal) iii. Increases natural NS production Antagonist DECREASES NS activity i. BLOCKS the neurotransmitter channel ii. (Like a stick of wood blocking a key port).
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The Nervous System Peripheral and Central Nervous system CNS- Brain and spinal cord Responds to messages and sends messages The SPINAL CORD is an extension of the brain, bridge between the brain and the body Spinal reflexes occur in the spine without any brain activity- involuntary- this is far faster PNS- everywhere else Contains SOMATIC and AUTONOMIC ( parasympathetic and sympathetic NS) nervous system Sensory Neurons From receptors TO brain Motor Neurons From brain TO muscles, skin, and various glands
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The Endocrine System Hormones CHEMICALS secreted into the bloodstream via GLANDS Travel farther in the body, but it is slower Hypothalamus Brain structure Controls the pituitary GLAND Pituitary Gland The “Master Gland” The pituitary gland releases melatonin from the suprachiasmatic nucleus Adrenal Glands
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Important for releasing hormones for mood, energy level, and the STRESS response.
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