___ carry oxygen rich blood from the heart to all parts of the body.
Arteries carry oxygen-rich blood from the heart to all parts of the body while veins carry carbon-dioxide rich blood from all parts to the heart.
___ carry oxygen rich blood from the heart to all the body parts.
The vessels which carry oxygen rich blood from heart to all the parts of the body:
Fill in the blanks of the following paragraph using just two words – arteries and veins
___(a)___ carry oxygen-rich blood from the heart to all parts of the body and ___ (b)___ carry carbon dioxide-rich blood from all parts of the body back to the heart. ___ (c)___ have thin walls and ___ (d)___ have thick elastic walls. Blood flows at high pressure in ___ (e)___. Valves are present in ___ (f) ___ which allow blood to flow only towards the heart. ___ (g)___ divide into smaller vessels. These vessels further divide into extremely thin tubes called capillaries. The capillaries join up to form ___ (h)___.