valves
THE HEART WORKS AS A WHOLE. One part cannot be more important than another.
pumanary artery
There are two pacemakers in the heart. One (which is the main pacemaker of the heart) can be found in the upper right-most part of the right atrium and the other one can be found in the center most part of the heart, inside the atrio-ventricular wall.
Ligaments are part of the muscular system.
the heart'
the heart
no it is part of the circulatory system
The unit of muscular contraction is the sarcomere. Put that into your address bar and much will be revealed of importance about muscular systems. True, but I don't see how it's the most important part. There are other parts the system would not work without.
The name shared by both the external part of the ear and the muscular pouches attached to the atria of the heart is "auricle."
We can not answer your question as it is incomplete and doesn't have enough information.
Either the cardiac system or muscular system, depending on what you are covering.
The heart is the only organ that is also a muscle. There are no other organs that are an actual part of the muscular system. Many organs are lined with muscle in order to help them function, such as the intestines and the stomach. Hope that's what you were looking for.
The large, very muscular part of the animal heart that functions to pump blood is called the left ventricle. It is responsible for pumping oxygen-rich blood to the rest of the body.
While your heart is a muscle, it is part of the circulatory system because it pumps the blood that travels throughout your body.
The muscular system is comprised of skeletal muscles, tendons, and associated connective tissue. Organs such as the heart and smooth muscles in internal organs are not considered part of the muscular system.
The most muscular part of the digestive system in a pig is the stomach. The stomach is made up of four regions, which are the oesophageal, cardiac, fundic and pyloric regions.