It is the SEPTUM
the wall that divides heart cavity down middle is... septum...this is the TRUE answer... I hope thi helped you=}.
I think it is called the Septum.
Not in humans. It's a bit further down than the heart is.
The heart cavity is divided down the middle into a right and a left heart, which in turn are subdivided into two chambers. The upper chamber is called an atrium (or auricle), and the lower chamber is called a ventricle. The two atria act as receiving chambers for blood entering the heart; the more muscular...
It is called line symmetry when we can actually draw a line down the middle of a figure that divides the figure into two mirror images.
No, the lungs are located in the chest, on either side of the heart. They extend from just above the collarbone down to the diaphragm, which is the muscle that separates the chest cavity from the abdominal cavity.
Your lungs are in the thoracic cavity, which includes the chest down to the diaphragm. The lungs are located on both sides of the heart in pleural cavities.Source:http://www.dummies.com/how-to/content/what-is-in-the-thoracic-cavities.html
This is a sack like structure surrounding the heart. It gives the heart a lot of room to beat. As the heart beats it needs room to actually wring all the blood it can with each beat. Any thing that slows this down (like fluid in the space) can cause heart failure or even death.
oral cavity and stomach
The diaphragm is below the lungs and the heart and above the stomach,and the intestines,therefore the diaphragm must be pushed down or in a convex position to the heart.
A line of symmetry divides a figure into two halves that are the mirror images of each other.Fold a square sheet of paper exactly in half. When you unfold the paper you will see the crease down the center. That is an example of a line of symmetry. Both sides of an object must be equal to be symmetrical. Let's do a construction taking off on this idea. You've probably already done it at one time or another.Fold that piece of paper, and take a pair of scissors and cut half a heart out of it using the crease as a line going down the "middle" of the heart. Unfold the finished construction. You'll have a heart and that fold you made in the paper is the line of symmetry for the figure. The line of symmetry divides any shape into mirror images.
A love heart typically has one axis of symmetry, which is a vertical line that runs down the center from the top point to the bottom point. This line divides the heart into two mirror-image halves. The heart's symmetrical shape means that if you fold it along this axis, both sides will match perfectly.