Learn how blood flows through the heart, and understand the difference between systemic and pulmonary blood flow. Rishi is a pediatric infectious disease physician and works at Khan Academy. Created by Rishi Desai.
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only important detail of pulmonary vein is missing here which carry oxygenated blood from the lungs to the heart. This is different from systemic veins which carry deoxygenated blood towards the heart. And Pulmonary artery too which carry deoxygenated blood away from heart.
I learned that the veins from the leg going up to the stomach to the opening of the heart thats where we get the blood.The vein is like blood going towards the heart.After the blood is pumped to the heart the blood needs to get out of the heart to the arm and splits.
As a fairly new EMT I'm not completely comfortable with cardiac issues. I feel like understand enough but I want to be able to differentiate cardiac issues more quickly and accurately in the field. This video was well explained and illustrated. By far this was the simplest & clearest explanation I have found. I find myself most interested than ever. Once I get more comfortable in the basics I plan on continuing in the field of emergency medical service.
I agree with some of the other comments. what teachers couldn't explain in "x" amount of time this video did it in 7:50. Well done!
So illustrating like a experienced and well trimmed masturbator. I am just saying, You ever seen the face of a Bank President when a Indigent Cadaver Starts speaking about donor–acceptor separation distance and their relative dipole orientations.
Antidepressants are medications that can help relieve symptoms of depression, social anxiety disorder, anxiety disorders, seasonal affective disorder, and dysthymia, or mild chronic depression, as well as other conditions.
They aim to correct chemical imbalances of neurotransmitters in the brain that are believed to be responsible for changes in mood and behavior.
Depression Medications (Antidepressants)
These are the most commonly prescribed type of antidepressant.
Serotonin and noradrenaline reuptake inhibitors (SNRIs) are used to treat major depression, mood disorders, and possibly but less commonly attention deficit hyperactivity disorder (ADHD), obsessive-compulsive disorder (OCD), anxiety disorders, menopausal symptoms, fibromyalgia, and chronic neuropathic pain.
SNRIs raise levels of serotonin and norepinephrine, two neurotransmitters in the brain that play a key role in stabilizing mood.
Selective serotonin reuptake inhibitors (SSRIs) are the most commonly prescribed antidepressants. They are effective in treating depression, and they have fewer side effects than the other antidepressants.
SSRIs block the reuptake, or absorption, of serotonin in the brain. This makes it easier for the brain cells to receive and send messages, resulting in better and more stable moods.
They are called "selective" because they mainly seem to affect serotonin, and not the other neurotransmitters.