general can produce widespread sweating has greater influence during physical activity inhibits heart rate but stimulates contraction of urinary bladder stimulation of this system often activates many effectors at the same time release of epinephrine and norepinephrine thoracolumbar division fight-or-flight response provides innervation to blood vessels in skeletal muscles The celiac ganglion is one of the three main _________ ganglia. collateral Axons from preganglionic neurons of the parasympathetic
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Serotonin Vittorio Erspamer first found serotonin in the 1930s. It was discovered again in blood serum in 1948 by Irvine Page‚ who named it serotonin (from "serum-tonic"). assists with feeling‚ driving forces‚ and dream. It is not in charge of empowering the cerebrum but rather it can abundance sums in the mind that prompts the steady dispositions. Serotonin is an inhibitory neurotransmitter that has been observed to be personally required in feeling and state of mind. Too little serotonin has been
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major cause of senility. Norepinephrine In 1946‚ a Swedish biologist by the name of Ulf von Euler discovered norepinephrine (formerly called noradrenalin). He also won a Nobel Prize. Norepinephrine is strongly associated with bringing our nervous systems into "high alert." It is prevalent in the sympathetic nervous system‚ and it increases our heart rate and our blood pressure. Our adrenal glands release it into the blood stream‚ along with its close relative epinephrine (aka
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LABORATORY REPORT Activity: Blood Glucose Regulation Name: Brent Goo Instructor: Thomas Redenbaugh Date: 12.23.2014 Predictions Plasma glucose levels will be highest 1-3 hours after the meal Plasma ketone levels will be highest before the meal (fasting) Plasma insulin levels will be highest immediately after the meal (0 hr) Plasma glucagon levels will be highest 1-3 hours after the meal Materials and Methods Dependent Variable plasma levels of glucose‚ ketones‚ insulin‚ and glucagon Independent
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PhysioEX notes Autorhythmicity- heart’s ability to trigger its own contractions Phase O- a lot like depolarization in neuronal action potentials. Sodium channels open‚ increase of sodium INTO cell. Phase 1- sodium channels close‚ potassium channels close‚ decrease in potassium and sodium. Calcium channels open‚ increase of calcium into cell. Phase 2- Plateau phase‚ membrane still depolarized (contract). Potassium channels closed‚ L-type calcium channels stay open. Lasts 0.2 seconds/200
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The Endocrine System The endocrine system regulates the functioning of every cell‚ tissue‚ and organ in the body. It acts to maintain a stable internal body environment‚ regardless of changes occurring within or outside of the body. Endocrine cells have the ability to sense and respond to changes via the excretion of specific chemicals known as hormones. The endocrine system is one of the body’s two major communication systems‚ the nervous system being the other. Communication within the nervous
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steroid hormones are the cortisol‚ testosterones and estrogens linked to the reproductive system. They are able to spread around in the intestine. The protein hormones include the insulin and growth hormone and the modified amino acids are epinephrine‚ norepinephrine‚ oxytocin and vasopressin. The proteins and the amino acids are what’s need to be
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LABORATORY REPORT Activity: Blood Glucose Regulation Name: Deidra Silva Instructor: Jeba Inbarasu EdD.‚ PhD Date: 01.28.2015 Predictions Plasma glucose levels will be highest immediately after the meal (0 hr) Plasma ketone levels will be highest 1-3 hours after the meal Plasma insulin levels will be highest before the meal (fasting) Plasma glucagon levels will be highest before the meal (fasting) Materials and Methods Dependent Variable plasma levels of glucose‚ ketones‚ insulin‚ and glucagon
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Pharmacology Project: Nicotine Pharmacological Category: Stimulant By definition‚ nicotine is a highly addictive central nervous system stimulant. Nicotine behaves in the body much in the way caffeine does. Mainly‚ it gives you focus‚ concentration‚ accelerates your heart rate‚ breathing rate‚ and increases blood pressure. Cigarettes and other tobacco products are both physically and psychologically addictive‚ because they contain a powerful drug called nicotine . Nicotine is a
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a neurotransmitter that causes an IPSP is ___gaba___________. c. What type of ions move into the cell in response to this neurotransmitter? __C1-____________. 4. a. Norepinephrine binds to a receptor that is separate from the ion channel. This is known as a/an _____indirectly__ - acting neurotransmitter. b. Norepinephrine is known as the ____first_________ messenger. c. The receptor is coupled to the ion channel by a ___G protein________________. 5. a. This activates an enzyme which induces
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