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how does the brain control the heart

A 33-year-old male asked:
Dr. Harinder Gill
38 years experience Cardiology
Electrical systems: Our bodies have cells that are ALL electrically active,there are numerous interconnects via multiple modalities(nerves,hormones etc) between the vari ... Read More
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A 47-year-old member asked:
Dr. Calvin Weisberger
50 years experience Cardiology
Contraction: The contraction of the heart is a property of the heart muscle itself. The rate of contraction is a complex interaction of the cardiorespiratory syste ... Read More
A 43-year-old member asked:
Dr. Bennett Werner
43 years experience Cardiology
Tried hypnosis?: Hypnosis, transcendental meditation, yoga, psychotherapy, psychoanalysis, bio-feedback, prayer. Any/all can help.
A 29-year-old male asked:
Dr. Rick Koch
Dr. Rick Koch answered
21 years experience Cardiology
Anxiety: You likely have an anxiety disorder as you are very young and at little to zero risk for a "heart attack". Please talk to your physician. Cognitive ... Read More
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A 49-year-old member asked:
Dr. David Sherer
36 years experience Anesthesiology
All: Total!
A 51-year-old member asked:
Dr. Gutti Rao
Dr. Gutti Rao answered
45 years experience Hospital-based practice
Split second: Split seconds.
A 48-year-old member asked:
Dr. Larry Armstrong
26 years experience Neurosurgery
Fiberoptic cables: Like phone cords, the brain connects down through the brainstem by tracts like fiberoptic cables connecting the motor/sensory areas of the brain to th ... Read More
A 37-year-old member asked:
Dr. Steven Ajluni
34 years experience Cardiology
Feedback mechanisms: Many things impact bp. Neural stimuli and catecholamine release impact on heart rate and vasoconstriction. Renal blood flow and kidney function cont ... Read More
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A 54-year-old member asked:
Dr. Michael Kleerekoper
50 years experience Endocrinology
Calcitonin: For starters please go online and look for an article or two - not a difficult one to understand - that discusses Calcitonin at a level you will under ... Read More
A 46-year-old member asked:
Dr. Irv Loh
Dr. Irv Loh answered
48 years experience Cardiology
Reset own pacemaker: Assuming query is about cardioversion. There are hierarchies of pacemaker cells in the heart. Fastest one usually takes over. Normal sinus node, the ... Read More
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A 52-year-old member asked:
Dr. Bennett Machanic
51 years experience Neurology
No, never: Ms does not affect the heart or any other internal organs directly.
A 54-year-old member asked:
Dr. Calvin Weisberger
50 years experience Cardiology
Oxygen: Oxygenated blood leaves the pulmonary circulation and is pumped through the left side of the heart. After it goes through the aortic valve oxygenated ... Read More
A 42-year-old member asked:
Dr. Alon Gitig
19 years experience Cardiology
By not interfering: A healthy pericardium is a very flexible, thin tissue that is "just there." it generally serves little purpose, other than to allow the chambers of th ... Read More
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A female asked:
Dr. Silviu Pasniciuc
26 years experience Internal Medicine
Cardiac angina: Is generated through demand supply mismatch due to narrowed/ diseased coronaries, heart arteries. Atherosclerosis is the most common cause.
A 48-year-old member asked:
Dr. Sewa Legha
49 years experience Medical Oncology
Yes!: Cabncer cells travel via the blood and can get to the brain just like they do to all other body parts/sites. They are very invasive and are capable of ... Read More
A 56-year-old member asked:
Dr. Michael Sparacino
36 years experience Family Medicine
Main artery: The aorta is the main artery in the boday and is responsible for delivering blood to the rest of the body.
A 31-year-old female asked:
Dr. Karen Sibert
38 years experience Anesthesiology
No single answer: Serious complications from GA are much more likely in pts who are already sick. If you have coronary artery disease, the stress of surgery and anesthe ... Read More
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A 42-year-old member asked:
Dr. Bennett Werner
43 years experience Cardiology
Millisecond timing: The 2 atria act as reservoirs for returning blood; the 2 ventricles are the "pumpers". The 4 chambers must be coordinated with millisecond timing to m ... Read More
A 45-year-old member asked:
Dr. Mark Fisher
33 years experience Neurology
No problem: If you want to find out how the brain works, you can start with one of the standard references: Principles of Neural Science, by Kandel and Schwartz. ... Read More
A 51-year-old female asked:
Dr. Raymond Schneider
45 years experience Family Medicine
Ensure blood supply: The question is a little vague but i will try to explain. The small arteries to the heart (the coronary arteries) are what supply blood to the hearyt ... Read More
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A 49-year-old member asked:
Dr. Ralph Morgan Lewis
37 years experience Family Medicine
ACH effect on BV: M3 muscarinic ach receptors are located in smooth muscles of blood vessels. Because they're gq-coupled & mediate increase in intracellular calcium, t ... Read More
A 51-year-old member asked:
Dr. Alan Ali
Dr. Alan Ali answered
31 years experience Psychiatry
Olanzapine: Zyprexa (olanzapine) is an atypical psychotropic that affect Dopamine receptors, hence lowers Dopamine levels & reduces psychotic symptoms.
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A 52-year-old member asked:
Dr. Michael Swor
39 years experience Obstetrics and Gynecology
Varies: Im not a neuroscientist but the effects of drugs on the brain would depend on many variables, including baseline function, length of time and extent o ... Read More
A 42-year-old member asked:
Dr. Stanley Berger
32 years experience Cardiology
Clarify: What systems does WHAT affect?

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