What is the difference between unipolar neurons and multipolar neurons?
In a unipolar neuron, or pseudounipolar neuron, the dendrites and axon are continuous--basically, fused--and the cell body lies off to one side. In such a neuron, the initial segment lies where the dendrites converge. The rest of the process, which carries action potentials, is usually considered to be an axon. Most sensory neurons of the peripheral nervous system are unipolar. Their axons may extend a meter or more, ending at synapses in the central nervous system. Multipolar neurons have two or more dendrites and a single axon. Multipolar neurons are the most common type of neuron in the CNS (Central Nervous System). Look: Unipolar Neuron- http://psyweb.com/Physiological/Neurons/NImages/Unipolar.gif Multipolar Neuron- http://www.colorado.edu/intphys/Class/IPHY3730/image/nerve.gif
Neurons are the cells that make up our nervous systems. A neuron has basically 3 parts - dendrites which collect impulses, cyton which add them together and axon which transmit it to the next cell. These basically are of 5 types:-Unipolar- These have only one option of directing impulse while impulse can enter through any direction directly in cyton. They have one axon only. These can be found in embryonic stage.Bipolar- In such neurons impulse enters from one direction and is directed in the other. They have one axon and one dendrite .It is found in sensory areas like retina and taste buds.Multipolar- In these neurons impulse enter through various directions with the help of dendrites and is directed in one particular direction. They have multiple dendrites and one axon. Maximum neurons of CNS are of this type.Pseudo-uni-polar- In these neurons which are found in nerve ganglia (a dense network of neurons) the direction of entry and exit of impulse is same.Apolar- In these no direction of transmission and collection is specific. Only cyton is found. These are very primitive type of neuron and are not found in humans.
Which of these neurons are unipolar or multipolar?
This Site Might Help You. RE: Which of these neurons are unipolar or multipolar? *sesory neuron (afferent) *association neuron (interneuron) *motor neurons (efferent)
What is the difference between a unipolar neuron, a bipolar neuron and multi-polar one?
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Just got diagnosed Bipolar 1. Anxiety?
ok has your doctor given u a confirmed diagnosis of bipolar or is he assesing u for bipolar?, im just a bit unsure as u say he said he hasnt seen a manic episode? if this is the case then get a second opinion, if u havnt had a manic or hypomanic episode then he shouldnt have diagnosed u with bipolar, he could diagnose unipolar without the mania but not bipolar, also u have to be diagnosed by a phychiatrist not a GP, has he refered u to a phychiatrist yet? and also has he checked your thyroid, because before a diagnosis of bipolar u must have your thyroid checked as it can mimic the symptoms of bipolar, if this is the case then id maby consider getting a new doctor x theres nothing wrong with wanting to look after your health and well being and i think u are a very resposable person for asking for advice as u have concerns, u r doing the right thing episodes in bipolar are very misunderstood, alot of ppl think they are constant mood swings throughout the day or every other day but this isnt the case, bipolar episodes last minimum 4-7 days but usually weeks to months of either depression or mania/hypomania if what u meant tho was that he hadnt seen a manic episode right now but has confirmed manic/hypomanic episode in the past whitch is why u were diagnosed then what u are describing could be a mixed episode, if u have had bipolar for a long time and had many episodes then somtimes u can end up having a mixed episode where u experiance mania e.g the creativity the rapid thoughts plans etc but dont have the motovation enough to see it through as u also have the depressive symptoms etc has he spoke to u about medication that may help for biplar like lithium? if your diagnosis is confirmed and by a phychiatrist then start asking about medication options to help u but if u havnt been diagnosed the correct way and by a phychitrist then definetly get a second opinion, and maby look into boarderline personality disorder, its similar to bipolar in the way of mood changes only the moods in boarderline are a lot more rapid anyway good luck to u and i hope u get proper help and the correct diagnosis x
What are the three types of neurons?
The axon terminals of all neurons end at another structure that they stimulate (or inhibit). The connection between the two is called a synapse. Depending on the neuron, the synapse may be with another neuron (for sensory and interneurons) or a muscle fiber or a gland cell (for motor neurons). The sensory neurons inform the central nervous system of outside stimuli through the senses of touch, sight, hearing, taste and smell. By causing muscles to contract and relax, motor neurons enable such involuntary muscle functions as the beating of the heart and the passage of food through the intestines, as well as voluntary skeletal muscle function. Interneurons form the connections that enable communication between the sensory neurons and the motor neurons and also perform many other complex signaling functions within the nervous system. The brain is not always involved in signal transmission between neurons. In a monosynaptic reflex pathway, such as a knee-jerk reflex, sensory neurons pass messages directly to motor neurons, which stimulate the leg muscles to react automatically. As tasks increase in complexity, the pathways become more convoluted, and the brain comes into play. To process all this information, scientists estimate that the human brain contains roughly 200 billion neurons.
What are the three types of neurons?
The axon terminals of all neurons end at another structure that they stimulate (or inhibit). The connection between the two is called a synapse. Depending on the neuron, the synapse may be with another neuron (for sensory and interneurons) or a muscle fiber or a gland cell (for motor neurons). The sensory neurons inform the central nervous system of outside stimuli through the senses of touch, sight, hearing, taste and smell. By causing muscles to contract and relax, motor neurons enable such involuntary muscle functions as the beating of the heart and the passage of food through the intestines, as well as voluntary skeletal muscle function. Interneurons form the connections that enable communication between the sensory neurons and the motor neurons and also perform many other complex signaling functions within the nervous system. The brain is not always involved in signal transmission between neurons. In a monosynaptic reflex pathway, such as a knee-jerk reflex, sensory neurons pass messages directly to motor neurons, which stimulate the leg muscles to react automatically. As tasks increase in complexity, the pathways become more convoluted, and the brain comes into play. To process all this information, scientists estimate that the human brain contains roughly 200 billion neurons.
When I'm hypomanic, I can't even keep up with me. My thoughts branch out and tumble all around. I get impatient with myself.This means that when I'm at the grocery store, that mom who's reading the labels to make sure it's safe for her kids? I wait. And wait. And wait. Likely it's been about 42 seconds. At that point I politely say, “Excuse me?” And go on. No huffing or puffing or cursing.If I'm trying to explain one of my many brilliant ideas to someone and they interrupt with a question, I definitely will say, “Hang on! I'm not finished. I'm getting there!” That'll be just shy of annoyed-sounding.I'm always hyperaware of how others may perceive me. Likely some BPD traits, but anyway. It takes a LOT for me to actually show my impatience. I mean A LOT. So if it shows when I'm hypomanic, it would likely come out when I'm in a “normal” mood.But, yes, in answer to your question, when I'm hypomanic sometimes I feel like I could explode. I just choose not to show it.
Where are neurons located in the body?
Neurons are most dense in your brain--it's basically a hunk of neurons! You'll find a huge density of neurons in your spinal cord as well. But they're also all over your body. When you pinch your skin, the pain you feel is transmitted to your brain by neurons. When you lift your arm, your brain is using neurons to tell the muscles in your arm to move. A side note--a bundle of neurons is called a nerve. When looking at a dissected cadaver, you can pick out the nerves easily. They're about the size of a blood vessel. These nerves have millions of neurons!
Unlike several of the other respondents, I'm Bipolar II. I have massive depressive episodes, relieved by short, minor hypo-manic episodes. I actually started thinking I was Bipolar when I was in college. I had been majoring in programming and minoring in business administration, with the plan to freelance after college. Part of the BA courses was psychology. We were discussing different mental disorders, and got to Bipolar. As my professor was describing it, I realized that it described my behavior to a T. I didn't necessarily diagnose myself, but I sort of made a note of it in my mind for when I did finally see a doctor. Unfortunately, I was unable to do anything about it. I was a poor college student with no health insurance, and my parents couldn't afford it either. So I continued along, unmedicated. And the stress of trying to go to college full-time and work full-time threw me into a full-on manic episode. I still don't remember everything that happened during this period of about 8-10 months. I do know that I started doing drugs, drinking heavily, and dropped out of college. Once that ended, I plunged into a horrid depression that lasted several years. I quit my job, and moved back home into my parents house. I put on about 100lbs. Bounced around between crappy jobs, never even tried to date anyoneFast forward about 7 years. Thanks to the ACA (or "Obamacare" as some people call it), I was able to get on medicaid. Went to a counselor, who recommended me to a psychiatrist, who properly diagnosed me and put me on medication. So if you think you may be Bipolar, or have some other mental illness/disorder, go see a counselor and/or a psychiatrist and explain in full detail what you feel and do.