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What Does Diabetes Care Include - Medway Healthcare
What Does Diabetes Care Include - Medway Healthcare johan simons 1,217 Views • 2 years ago

Diabetic Foot Care, Diabetes Care Toronto

Medical Video - Abortion Surgery
Medical Video - Abortion Surgery Paul Jensen 159,381 Views • 2 years ago

Surgical abortion using the dilatation and curretage technique.

Sexual positions to get pregnant fast
Sexual positions to get pregnant fast samer kareem 19,501 Views • 2 years ago

When you’re trying to conceive a baby it is worth giving anything a go which you think will boost your chances. This includes considering that there may be better positions for getting pregnant. But it pays to bear in mind that the human race has been around for over 200,000 years and most of us were probably conceived without our ancestors investing too much thought into the mechanics. Science has proven that successful conception isn’t so much about sexual position as the frequency of sex between a fertile couple. Basically, if you want to fall pregnant, don’t use contraception and have frequent, active and enjoyable sex. Importantly, don’t stress too much about whether you’re doing it the right way. Women can, and do, conceive in any position. Nature has a way of making sure of that.

knee Arthroscopy with medial menisectomy and plica excision
knee Arthroscopy with medial menisectomy and plica excision Mohamed 20,742 Views • 2 years ago

arthroscopic medial menisectomy and plica excision of knee

Tummy Tuck Surgery Video
Tummy Tuck Surgery Video Mohamed 23,641 Views • 2 years ago

Tummy Tuck Surgery Video

Procedure for Prolapse & Hemorrhoids
Procedure for Prolapse & Hemorrhoids samer kareem 2,736 Views • 2 years ago

A surgeon begins the PPH stapled hemorrhoidectomy by inserting a circular anal dilator and obturator into the anal canal and then securing the dilator in place with four sutures. The surgeon then inserts a PPH anoscope into the obturator. Next, he places a circumferential purse-string suture of 2-0 Monocryl on a UR-6 needle 4 cm proximal to the dentate line. The surgeon opens a PPH stapler and places its anvil across the purse string. The stapler is then closed and fired; it is held closed for two minutes to improve hemostasis. Prior to firing the stapler in a female patient, the surgeon places a gloved finger in the vagina to ensure the vaginal mucosa and rectal-vaginal septum are not trapped within the jaws of the closed stapler. The surgeon then opens and removes the stapler.

Full Real Human Body Decomposing Process
Full Real Human Body Decomposing Process hooda 158,665 Views • 2 years ago

Watch that Full Real Human Body Decomposition Process

Testicular Self Exam
Testicular Self Exam samer kareem 5,041 Views • 2 years ago

Testicular Self Exam

Vaginal Child Birth
Vaginal Child Birth samer kareem 47,218 Views • 2 years ago

Labor And Delivery During Vaginal Child Birth

Man's Arm Exploded  Due to Illegal Muscles Injection
Man's Arm Exploded Due to Illegal Muscles Injection hooda 32,986 Views • 2 years ago

Watch that video of a Man's Arm Exploded Due to Illegal Muscles Injections

Medical Videos - Types of Female Genital discharge
Medical Videos - Types of Female Genital discharge hooda 26,906 Views • 2 years ago

Watch that video to know the Types of Female Genital discharge

Medical Videos - Pathway and Ejaculation of Sperm
Medical Videos - Pathway and Ejaculation of Sperm hooda 33,539 Views • 2 years ago

Watch that video of Pathway and Ejaculation of Sperm

Teeth Whitening
Teeth Whitening Dentist 25,208 Views • 2 years ago

Teeth Whitening

Neurotransmitter in action 3D Animation
Neurotransmitter in action 3D Animation Mohamed 19,755 Views • 2 years ago











Neurotransmitter 3D Animation
on Tuesday, December 21, 2010




Neurotransmitters are endogenous chemicals which transmit signals from a neuron to a target cell across a synapse. Neurotransmitters are packaged into synaptic vesicles clustered beneath the membrane on the presynaptic side of a synapse, and are released into the synaptic cleft, where they bind to receptors in the membrane on the postsynaptic side of the synapse. Release of neurotransmitters usually follows arrival of an action potential at the synapse, but may also follow graded electrical potentials. Low level "baseline" release also occurs without electrical stimulation. Neurotransmitters are synthesized from plentiful and simple precursors, such as amino acids, which are readily available from the diet and which require only a small number of biosynthetic steps to convert. The chemical identity of neurotransmitters is often difficult to determine experimentally. For example, it is easy using an electron microscope to recognize vesicles on the presynaptic side of a synapse, but it may not be easy to determine directly what chemical is packed into them. The difficulties led to many historical controversies over whether a given chemical was or was not clearly established as a transmitter. In an effort to give some structure to the arguments, neurochemists worked out a set of experimentally tractable rules. According to the prevailing beliefs of the 1960s, a chemical can be classified as a neurotransmitter if it meets the following conditions: * There are precursors and/or synthesis enzymes located in the presynaptic side of the synapse. * The chemical is present in the presynaptic element. * It is available in sufficient quantity in the presynaptic neuron to affect the postsynaptic neuron; * There are postsynaptic receptors and the chemical is able to bind to them. * A biochemical mechanism for inactivation is present. There are many different ways to classify neurotransmitters. Dividing them into amino acids, peptides, and monoamines is sufficient for some classification purposes. Major neurotransmitters: * Amino acids: glutamate, aspartate, D-serine, γ-aminobutyric acid (GABA), glycine * Monoamines and other biogenic amines: dopamine (DA), norepinephrine (noradrenaline; NE, NA), epinephrine (adrenaline), histamine, serotonin (SE, 5-HT), melatonin * Others: acetylcholine (ACh), adenosine, anandamide, nitric oxide, etc. In addition, over 50 neuroactive peptides have been found, and new ones are discovered regularly. Many of these are "co-released" along with a small-molecule transmitter, but in some cases a peptide is the primary transmitter at a synapse. β-endorphin is a relatively well known example of a peptide neurotransmitter; it engages in highly specific interactions with opioid receptors in the central nervous system. Single ions, such as synaptically released zinc, are also considered neurotransmitters by some[by whom?], as are some gaseous molecules such as nitric oxide (NO) and carbon monoxide (CO). These are not classical neurotransmitters by the strictest definition, however, because although they have all been shown experimentally to be released by presynaptic terminals in an activity-dependent way, they are not packaged into vesicles. By far the most prevalent transmitter is glutamate, which is excitatory at well over 90% of the synapses in the human brain. The next most prevalent is GABA, which is inhibitory at more than 90% of the synapses that do not use glutamate. Even though other transmitters are used in far fewer synapses, they may be very important functionally—the great majority of psychoactive drugs exert their effects by altering the actions of some neurotransmitter systems, often acting through transmitters other than glutamate or GABA. Addictive drugs such as cocaine and amphetamine exert their effects primarily on the dop

Watch How Snake Poison Could Turn Human Blood Into Jelly
Watch How Snake Poison Could Turn Human Blood Into Jelly hooda 13,514 Views • 2 years ago

Watch How Snake Poison Could Turn Human Blood Into Jelly

Human Fat Body Medical Autopsy
Human Fat Body Medical Autopsy hooda 35,670 Views • 2 years ago

Watch that Human Fat Body Medical Autopsy

Liver Disease Stages
Liver Disease Stages samer kareem 2,083 Views • 2 years ago

Symptoms of liver failure include vomiting, diarrhea and fatigue as well as the symptoms from stage 3. While the progression from cirrhosis to failure can take years, the damage is irreversible and leads to eventual death. The key to treating liver disease is to diagnose the condition as early as possible.

What is Vaginal Discharge and How To Get Rid Of It?
What is Vaginal Discharge and How To Get Rid Of It? hooda 140,360 Views • 2 years ago

Watch that video to know What is Vaginal Discharge and How To Get Rid Of It?

Femoral Bleeding
Femoral Bleeding samer kareem 3,104 Views • 2 years ago

If the artery were severed, blood would flow out unimpeded, although the artery wall would contract in an effort to stop the bleeding. After losing >30% of one's blood volume blood pressure would start dropping, and with less pressure the rate of bleeding would go down. At this stage if the blood loss wasn't replaced the person could die. Losing halve to two thirds of one's blood volume is considered to be fatal even if later on blood transfusion is attempted. One's total blood volume at 70ml/kg is estimated to be between 5 to 7 liters, so that makes a blood loss of between 2,5 to 4,7 L.

Morning Erection
Morning Erection samer kareem 9,003 Views • 2 years ago

Morning erections have colloquially been termed as “morning wood” while scientifically it is called nocturnal penile tumescence. It is a normal and healthy physiological reaction and response that most men experience in their lives. Morning erections are really the ending of a series of erections that happen to men during the night. Healthy men can, on average, have anywhere between three to five erections in a full night of sleep, each of which lasts from 25-35 minutes.

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