CAN YOU GIVE ME A STEP WISE EXPLANATION ON HOW TO DRAW:-

    1. HUMAN RESPIRATORY SYSTEM

    2.THE HEART

1. Human Respiratory System:

You can draw the outline of the lungs and the tubular part that runs from nose to lungs.

Then you can draw bronchioles, alveoli. Label them.

Give proper texture of trachea in the diagram.

Below lungs, draw the diaphragm.

Once the entire diagram is ready, label all the parts.

2. The Heart:

You can draw the outline of the conical structure of the heart, divide into two halve first and then ultimately into four chambers by drawing lines.

Then you can draw associated arteries and veins starting from the right atrium, right ventricle, left atrium and the left ventricle. This will ensure that you do not miss on drawing any of the blood vessels.

Once your diagram is ready you can label all the parts.