How does the lives/hearts system work?
There are perhaps a couple of underlying questions here. More specifically:
What is the system for regaining lost lives (hearts)? It seems you can buy them back (which I haven't tried) or collect a certain amount of band-aids (the number seems to increase each time you have to do it). I'm assuming the cost of a heart also increases, so my question is: how do each of these numbers increase?
What happens if you lose all your hearts? I'm not sure I want to find out what happens, although it seems there are a few achievements geared towards it.
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How does the heart system work?
The circulatory system (cardiovascular system) pumps blood from the heart to the lungs to get oxygen. The heart then sends oxygenated blood through arteries to the rest of the body. The veins carry oxygen-poor blood back to the heart to start the circulation process over.How does the heart work automatically?
The heart's electrical systemYour heartbeat is triggered by electrical impulses that travel down a special pathway through your heart: SA node (sinoatrial node) \u2013 known as the heart's natural pacemaker. The impulse starts in a small bundle of specialized cells located in the right atrium, called the SA node.How does the crayfish heart work?
Crayfish also have an open circulatory system. Blood flows into the heart through dorsal ostia, and is pumped into body sinuses through arteries at both the posterior and anterior ends of the ventricle. The beats of both myogenic and neurogenic hearts are modulated by neurotransmitters.How does human circulatory system work – 3D animation – in English
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