Created by Jeff Otjen.
Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/behavior/human-development/v/gestation?utm_source=YT&utm_medium=Desc&utm_campaign=mcat
Missed the previous lesson? https://www.khanacademy.org/test-prep/mcat/behavior/human-development/v/implantation?utm_source=YT&utm_medium=Desc&utm_campaign=mcat
MCAT on Khan Academy: Go ahead and practice some passage-based questions!
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can you make your videos more advanced which will make it appealable for med students as well you can easily say that wouldnt come in mcat and give time lines in explanation of video which covers med side and mcat students can easily skip these parts of it. i think lots of people would consult you if you did like that thanks
Thank god for the comment section, the bladder is endoderm derived. This video tripped me up so much studying for the MCAT, almost missed a question on the exam. ANNOTATE OR REUPLOAD. Disgraceful, Khan Academy.
I thought the same thing, but now that I am in med school, it is very important to understand how structures are developed because it helps you predict and understand certain congenital anomalies.
For example in our first week back from second year we are learning neonatal care. One of the causes of "respiratory distress" can be a trachoesophogeal fistula. Fistula in medicine just means the connection between two open pouches. So why would the trachea and esophogeous be connected to each other? Well because the lungs come from the endoderm, and more specifically the foregut.
Stay strong, and keep studying. :)
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.