rigo duarte is hot.
arteries are thicker then veins
they expand when the balls become so tight that htye are about to explode!
Dwarf rabbits, like all rabbits can have heart attacks when their arteies are clogged with too much fat or when you scare them without them knowing!
veins capillaries arteies and for the heart there is the left and right ventricles left and right atriums the arota tricusbib valve bicusbib valve superior and inferior ven cava
Rivers are vital to daily life of a major portion of public in Bangladesh. They are transport arteies (as all rivers are navigable). Fishing is concerned with rivers. River water also used for irrigation of crops.
The waves of excitation would not be carried to the bottom of the heart first and it would spread over the ventricular walls from top to bottom causing the ventricualr muscle to contract in a way that it pushs the blood downwards. The blood would however end up going through the arteries because of the immense pressure but less will be pumped through the arteies with every contraction hence leading to less blood being pumped in the heart
Capillaries allow the exchange of substances between the blood and the cells. They can do this because they have 'leaky walls' which let substances in and out. For instance food is supplied to the cells and carbon dioxide comes out of the cells to be taken away.