Hey Bryan.... How Do...

[NWlifter]

myosin heads move?
we know sarcomeres 'contract' by myosin heads attaching, pulling, re-grabbing, but 'how' do 'they' move? What causes them to attach and have force? Is it like magnetic?

 

[NWlifter]

Ok, should have read before I asked, looks like chemical bonds are via electron sharing between the atoms, so in essence, all chemical/molecular bonds are via magnetism at the base atomic level.
https://sciencing.com/facts-4909878-definition-molecular-bonds.html

So chemical alterations to the myosin would cause bonds to form that deform the myosin chain and at the root, it would be magnetic via electrons, etc. Interesting!

 

[Bryan Haycock]

This is a very good video explaining what's happening.

 

[NWlifter]

OK yes, I think I was being super technical, in that, all chemical reactions are actually magnetic at the root (due to how electrons fill in 'holes' and share orbits with other atoms to form molecules.