contract
Clogs up
3 Li + P = Li3P
Ventricles.
The ventricles contract.
the ventricles
the lower heart.
Those holes are called Ventricles, and together are part of the ventricular system. There are 4 ventricles altogether in the brain: 2 lateral ventricles (right and left) a third ventricle and a fourth ventricle (names are not very original, but thankfully easy to remember).
Very strongly
strongly, very, profoundly, fiercely
Very.
third degree heart block
Probably, but I would VERY STRONGLY recommend that you DO NOT! Probably, but I would VERY STRONGLY recommend that you DO NOT!