how to draw human heart
Answers
Step 1:Draw a diagonal line from Right to Left using pencil at center of page.
Mark R and L as shown. Here
our left becomes right on paper.
Step2:Draw basic shape of heart showing upper broad and lower tapering end along reference line.
Make sure the right upper corner is little protruding out.
Use only gentle pressure on pencil to draw lightly since it is easy to erase thin faint lines some times.
Step 3:Make little depressions to mark the grooves that separate the auricles and ventricles.
Step 4:Erase the out lines at required places and draw superior and inferior venacava.
Draw the opening of Pulmonary veins in Left auricle as shown.
Step 5:Draw the inner thickness of muscular heart walls. Ensure walls of auricles are thin and ventricles are thick.
Left ventricle wall should be comparatively thicker than right.
Step 6:Draw the systemic aorta originating from left ventricle as shown.
Make a hair pin loop at the top, this forms the Aortic arch of the heart.
In the next step we will start with Pulmonary Aorta that originates from Right ventricle.
Step 7:Draw Pulmonary aorta originating from Right ventricle.
To give illusion of Aorta going behind Pulmonary aorta, erase the Aorta near overlapping area. It is little tricky.
Step 8:Define the ends of pulmonary aorta and draw the valves as shown.
Label the parts neatly.
The internal structure of heart shows four septas that divide the heart into four chambers