Trevor Lehman
Ever since I was a young child I have had a fascination with the human body and the wonders it can do. My fascination came from watching shows like House M.D. where they show animations and drawings of what is happening in the person’s body during illnesses. The interest grew as I became older because I wanted to learn more about injuries and how to treat them. As an artist I began with cartoons, but slowly got more involved in naturalistic drawings. I had the opportunity to draw two larger-than-life figures for my high school anatomy class on the walls. This experience made me want to continue illustrating the human body. As a senior in college, I wanted to learn about the human heart and to illustrate to my audience how important
a properly functioning heart is for life. Enlargements in any part of the heart can affect job efficiency, which is why I am comparing the non-enlarged heart to four other hearts with certain types of enlargements. Until attending Arcadia, I was a traditional artist. Over my years at Arcadia, I have learned how to become proficient with digital art. To challenge myself, my thesis is all digital. Working digitally allows me to change things easily; animating allows for a visual of the heart beating and seeing the effects of enlargements. As I become a better artist and scientific illustrator, I want to continue
to grow like my digital art.
Standard Heart:
In a standard heart beat cycle it starts with the two upper chambers (Atriums) filling up with blood coming in from veins.
Once there is blood in the atriums they receive a signal and contract at the same time. This sends blood into the bottom two chambers (Ventricles).
After a slight delay, the ventricles begin to contract which sends the blood up through the two main arteries, the aorta and pulmonary.
After the blood exits the heart muscles start to relax and the cycle starts all over again. Each cycle is roughly 0.8 seconds for a heart rate of 75 bpm.
In a standard heart beat cycle it starts with the two upper chambers (Atriums) filling up with blood coming in from veins.
Once there is blood in the atriums they receive a signal and contract at the same time. This sends blood into the bottom two chambers (Ventricles).
After a slight delay, the ventricles begin to contract which sends the blood up through the two main arteries, the aorta and pulmonary.
After the blood exits the heart muscles start to relax and the cycle starts all over again. Each cycle is roughly 0.8 seconds for a heart rate of 75 bpm.
Right Ventricle Enlargement:
The right ventricle being enlarge can cause a thinning of the outer ventricle wall and can cause fatty tissue or scar tissue to build up on the heart wall.
With a thinning of the wall, the ventricle inflates and causes the contractions to become weaker than a standard heartbeat
which could cause the heart to struggle pumping all of the blood out of the ventricle.
The right ventricle being enlarge can cause a thinning of the outer ventricle wall and can cause fatty tissue or scar tissue to build up on the heart wall.
With a thinning of the wall, the ventricle inflates and causes the contractions to become weaker than a standard heartbeat
which could cause the heart to struggle pumping all of the blood out of the ventricle.
Right Atrium Enlargement:
The right atrium being enlarge can be caused by the thinning of the outer right atrial wall.
This makes the right atrium to inflate outward and unable to contract as strongly as it would in a standard heart.
It can also cause the right atrium’s recovery time to be longer.
The right atrium being enlarge can be caused by the thinning of the outer right atrial wall.
This makes the right atrium to inflate outward and unable to contract as strongly as it would in a standard heart.
It can also cause the right atrium’s recovery time to be longer.
Left Ventricle Enlargement:
In left ventricle enlargement, the walls of the ventricle become inflated. This reduces the amount of space available for the blood to fill up in the ventricle.
Also, with the walls being enlarged, the heart walls cannot expand as far as a standard heart can and the ventricles can contract slightly harder than a standard heart.
This can be a problem because the blood can remain in the ventricles and cause problems like heart failure.
In left ventricle enlargement, the walls of the ventricle become inflated. This reduces the amount of space available for the blood to fill up in the ventricle.
Also, with the walls being enlarged, the heart walls cannot expand as far as a standard heart can and the ventricles can contract slightly harder than a standard heart.
This can be a problem because the blood can remain in the ventricles and cause problems like heart failure.
Atrial Fibrillation:
Atrial fibrillation is an enlargement in the atriums of the heart. These sections are expanded and causes the atriums to flutter.
Atrial fibrillation is an enlargement in the atriums of the heart. These sections are expanded and causes the atriums to flutter.
