In a healthy heart, nerve impulses originate solely within the heart itself. The wall of the right atrium contains special cells for this purpose. Specifically, in the sinus node, the natural pacemaker of the heart. Authors: ZDF/3sat/nano/Südkino F i l m p r o d u k t i o n GmbH/Berndt Welz/Hannah
Click here to see more videos: https://alugha.com/mysimpleshow Every day we perceive many visual impressions. We can differentiate a multitude of colors in a bunch of flowers, and we can respond in a matter of seconds when driving a car. But what do we actually know about visual perception? Learn t
The male penis consists of the root, shaft and glans. When a man is sexually aroused, his brain sends signals to the nerves in the erectile tissue in the shaft. The penis becomes stiff and erects. Translation and dubbing: alugha Click here to see more videos: https://alugha.com/TerraX Thumbnail
All living organisms are made up of cells - they are the basic building blocks of life. There are two important categories of cells: plant cells and animal cells. In this video we look at animal cells in more detail. Animal cells are the type of cell that make up our bodies... and the bodies of al
Our bodies have a system in place which enables us to react really quickly, called reflex reactions. Click here to see more videos: https://alugha.com/FuseSchool VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else w
Our body is a pretty fantastic feat of engineering. But how does it work? How do all of the different components come together to keep us alive, keep us functioning and achieving our goals? In this video we are going to look at the levels of organisation in organisms, from smaller than cells to bigg
Respiration is the chemical process that supplies the body with energy for all other life processes: growth and repair of cells, muscle contraction, protein synthesis, sending nerve impulses, absorbing molecules in active transport to name just a few. It happens in ALL living cells, not just anima
Do you know someone who is really shy? Have you ever wondered if they’re interested in you in a romantic way? People who are shy often struggle to show that they are attracted to someone. They may find it even nerve-wracking sometimes to approach the person they like. This can cause them to send mix
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