What is the name of the glass container above
that you used to heat water?

Beakers.

Explanation:

The name of the glass container in the picture provided is: beakers, which is used to measure.

Beakers

Explanation:

The name of the glass container above is a beaker that you use to heat water.

A beaker has measurements that include how much of a substance to put in:

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.