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Doctor insights on: Substantia Nigra

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Substantia Nigra (Overview)

This is where a neurotransmitter called Dopamine is formed in the brain. A majority of Dopamine is formed in this area. It is responsible for many things. Degeneration of the substantia nigra leads to parkinson's disease.


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What does the substantia nigra do?

What does the substantia nigra do?

A lot!: Whole chapters in neuroanatomy are dedicated to the substantia nigra, but a short answer would be: it is indirectly involved with our muscle control including eye movement, and also the reward seeking/addictive, and learning aspects to our brain. When this part of the brain is damaged it causes parkinson's disease. ...Read more

Substantia Nigra (Overview)

This is where a neurotransmitter called Dopamine is formed in the brain. A majority of Dopamine is formed in this area. It is responsible for many things. Degeneration of the substantia nigra leads to parkinson's disease.


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What is the definition or description of: substantia nigra?

Dopamine: This is where a neurotransmitter called Dopamine is formed in the brain. A majority of Dopamine is formed in this area. It is responsible for many things. Degeneration of the substantia nigra leads to parkinson's disease. ...Read more

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What makes stimulating the substantia nigra cause depression?

What makes stimulating the substantia nigra cause depression?

Dopamine: Stimulation (presumptively by amphetamines) causes a release of dopamine. If this is "supraphysiological" - i.e., more than the body would normally account for - you can end up with a Dopamine deficit. This is the same think as Cocaine addicts have after a run on cocaine, or crank or meth addicts have after a run. The good news is that the body can and will build it back up if allowed to. ...Read more

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Which part of the brain is substantia nigra?

Which part of the brain is substantia nigra?

S. Nigra: Is pigmented cells in the midbrain that play a role in reward, addiction & movements. It came from latin words "black substance". ...Read more

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How does the substantia nigra cause depression?

No: The substantia nigra is part of the movement system and not the emotion system. For example, destruction of Dopamine neurons in the substantia nigra is the cause of Parkinson's disease. ...Read more

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Any tips on removing linea nigra?

Linea Nigra: Will normally resolve spontaneously within several months of delivery. It won't need special treatments. ...Read more

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How typical is it to have a linea nigra and not be pregnant?

How typical is it to have a linea nigra and not be pregnant?

Rarer: I don't know the incidence. It may occur is about 75% of pregnant women. It is no where's near this common in women who aren't pregnant but I could not find stats on this. ...Read more

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How to do sex?

How to do sex?

??: Need to be more specific however with the right person nature will take over and remember to protect yourself from stds. ...Read more

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Can I smoke??

Can I smoke??

No. Of course not.: Not a good thing to do. The intentional habit of inhaling burning organic material, combined with various chemicals used in the growing and manufacturing of that material (regardless of whether it is tobacco, marijuana, or any other plant) is bad for the body. Just think about it. Who would intentionally start something burning and inhale the stuff over and over and over? ...Read more

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Is lead safe?

Is lead safe?

Not if inside us...: Lead is naturally occurring on earth. Outside of our bodies, lead is not a problem. If we eat or drink too much of it, it becomes a toxic contaminant inside our bodies. Lead is everywhere in our industrialized world, which means one shouldn't worry too much about it, but be sure our families are not eating or drinking things containing lead, nor using lead-contaminated containers or toys. ...Read more

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How do I fast?

How do I fast?

Fast: I assume you are asking about fasting for a test. This is usually nothing except water after dinner. About a 12 hour fast. ...Read more

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I'm new member?

Congratulations: Congratulations for joining. We hope you find this forum to be educational and inspiring. ...Read more

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How to get fat?

How to get fat?

See below: First of all, I don't suggest getting "fat" as it brings about many hazards. But if you are underweight and want to gain weight, do so by increasing your calorie intake. You need to consume more calories than you burn. Don't do this by eating a lot of junk food. Make sure you're getting all your essential nutrients. Also, you can gain muscle mass by weight lifting or other activities like that. ...Read more

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What cause add?

What cause add?

Many things: The cause of adhd symptoms are many, allergies, low blood sugar, learning problems, nutritional deficiencies to name a few. Everyone deserves a thorough medical evaluation to look for these causes. ...Read more

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Who is at risk?

Question?: You do not have a question that I can answer. Please address who is at risk for "what"? Let us know and we will try to answer. ...Read more

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What can I ask?

What can I ask?

Basic questions: If you did not ask for premium, paid services, then this basic HealthTap public forum is free. Post a question with good grammar and spelling, and one or more of the thousands of volunteer doctors can answer it. They might skip repetitive questions, or ones that have too many abbreviations, or are otherwise hard to understand. (HealthTap's premium services provide private, virtual consultations.) ...Read more

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Is sex healthy?

Is sex healthy?

Sex is Part of Life: Sex is a very important part of our human experience. Sex can be used to enhance life, bring life to the world, to heal and enhance relationships. All forms of sexual activity can be used to be healthy but they can be misused and cause hurt and pain.

But, being sexual is going to be part of your life experience and there is nothing unhealthy about being curious and learning. ...Read more

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What cause add?

What cause add?

Not known.: It used to be thought it came from slight brain damage during pregnancy, but no longer. Perhaps it's an adaptive trait for very threatening environments left over from earlier evolution. Maybe, too, that's why it's so common. ...Read more

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What is a toxin?

What is a toxin?

Poisonous substance: From greek word toxicon) produced within living cells, i.E bacteria, insects, fungi or plants. Antharx, botulinum, bee stings, snake bites, poison ivy poison from deadly fungi are all examples. Often erroneously used interchangeably with toxicants or toxics which are man made or in-organic substances which can be toxic. Thse can be man made drugs, or chemicals like mercury etc. ...Read more

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What is a blast?

What is a blast?

Young blood cell: Blood cells that are found in the blood stream are fairly mature. They originate in the bone marrow where they grow from very early cells called stem cells. It is very hard to identify these stem cells but after they divide for awhile, they make young cells that can be identified under a microscope and with special dyes. These cells are called blasts. In acute leukemia there are too many blasts. ...Read more

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Can you help me?

Can try--: Based on your conditions, sounds as though you should be evaluated in an urgent care or er setting to see what is going on. Have someone take you, as should not drive self. ...Read more

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How to eat good?

How to eat good?

Some thoughts...: Successful diets require that a person stick to a plan for months or years, so easier goals and small milestones are good. She must be happy with the foods she gets to eat, so severe calorie restriction is not successful. Eat vegetables with little sauce or dressing. Look for healthier oils. Don't use clarified butter (an animal fat) or eat too many egg yolks. Sugar is unhealthy; try to avoid it. ...Read more