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Doctor insights on: Brain Structures And Functions Worksheet

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Dr. Buck Parker
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Cerebrum (Definition)

Cerebrum essentially refers to the majority of the brain. Embryologically, it develops from the telencephalon, and together with the diencephalon, ...Read more


Dr. Buck Parker
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Whats the brain structure like for a person with normal memory loss vs a memory loss disorder?

Whats the brain structure like for a person with normal memory loss vs a memory loss disorder?

Atrophy: Various areas of the brain will shrink, or atrophy, with progressive memory disorders, and the patterns can assist with clinical diagnosis. Although normal aging is associated with gradual atrophy, this is far less than alzheimer's. Atrophy, either focal or diffuse, can be present in younger patients following a brain injury, or multiple sclerosis. ...Read more

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What is the difference in brain structure of someone with a memory loss disorder?

What is the difference in brain structure of someone with a memory loss disorder?

It depends: It really depends on the reason for the memory loss. Different pathologies have different brain structure changes. And some people with the same diagnosis (i.e., vascular dementia) might have different areas of their brain affected. ...Read more

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Dr. Buck Parker
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Is it true that methylphenidate can cause changes in the brain like neurons structure after long term use (years)?

Is it true that methylphenidate can cause changes in the brain like neurons structure after long term use (years)?

Not in monkeys: There is no data yet that convincingly show long-term problems with methylphenidate. In fact one study done in monkeys specifically showed no change in brain structure on pet scan. The ultimate study of course remains to be done on humans. I think that it's safe to say that the basic science research looks very good but the final studies in human beings still need to be carried out. So far however there was no signal that long-term structural changes are occurring. Hopefully will find this reassuring and helpful. Best wishes. ...Read more

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Can depression and ptsd change your brain structure and cause neurological problems later in life? I am 33 and have been on meds & therapy for 5 yrs.

Can depression and ptsd change your brain structure and cause neurological problems later in life? I am 33 and have been on meds & therapy for 5 yrs.

Brain changes: Ptsd can cause significant changes in brain physiology. The amygdala (fight or flight) becomes over -active. The frontal cortex forgets to monitor the amygdala- so there is more impulsive behavior the hippocampus forgets to do it's job laying down new memories and retrieving old ones. Neurotransmitters are out of wack. Early and aggressive treatment is important for optimal outcomes in tx. ...Read more

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How does the structure of lymphatic capillaries correlate with their function?

How does the structure of lymphatic capillaries correlate with their function?

Intelligent design: The fluid carried by the blood stream/arteries leaks out into the tissues through the capillary walls and when the tissues are healthy, are drawn into the minute lymph channels and flows back into the blood stream at the superior vena cava just above the heart before the blood goes through the lungs for re-oxygenation. Impairment of the delicate channels or lymph nodes results in edema. ...Read more

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What is the structure and function of myocardium?

What is the structure and function of myocardium?

Heart muscle: Myocardium (heart muscle) is made up of cardiomyocytes. The function is pumping blood. ...Read more

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Dr. Buck Parker
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