Symetry

[CabVet]

What would happen to us if the heart is skewed toward the right side of the body?

Situs inversus (also called situs transversus or oppositus) is a congenital condition in which the major visceral organs are reversed or mirrored from their normal positions. The normal arrangement is known as situs solitus. In other rare cases, in a condition known as situs ambiguus or heterotaxy, situs cannot be determined.

 

[juvenissun]

Situs inversus (also called situs transversus or oppositus) is a congenital condition in which the major visceral organs are reversed or mirrored from their normal positions. The normal arrangement is known as situs solitus. In other rare cases, in a condition known as situs ambiguus or heterotaxy, situs cannot be determined.

Thank you. Excellent. Although I do not know what does this rarity means.

 

[NailsII]

I was only respond to the position of biological control in a symmetrical body. If the control unit is not a point located at the center of symmetry, then it will be internally asymmetrical and that will make the locomotive action of the symmetrical body asymmetrical.

Which makes no difference.
If you imagine a disc-shaped organism, an asymmetrical centre of control would result in a natural wave pattern of locomotion, as one side receives the nerve impulse before the other side. (assuming it is large enough to have nerves).

For a bilaterally symmetrical body like human, there is a "plane" of symmetry. So the controlling parts can be distributed on that plane in any geometry and do not have to worry about the interruption to the bilateral symmetry.

So by your arguent, all important functions shold be controlled from the centre of all symmetry in a body.
Why do we not see this in nature?

By saying that, I understand our heart is not located on the central plane of our body. And I am not sure what would be the special effect of that skewness to our physiology. What would happen to us if the heart is skewed toward the right side of the body?

I don't think that there is any effect.
Neither is your liver or the vast majority of your GI tract, and I don't supose that has an effect either.
Note with interest what is located at the centre of your brain:

 

[juvenissun]

Which makes no difference.
If you imagine a disc-shaped organism, an asymmetrical centre of control would result in a natural wave pattern of locomotion, as one side receives the nerve impulse before the other side. (assuming it is large enough to have nerves).

So by your arguent, all important functions shold be controlled from the centre of all symmetry in a body.
Why do we not see this in nature?

I don't think that there is any effect.
Neither is your liver or the vast majority of your GI tract, and I don't supose that has an effect either.
Note with interest what is located at the centre of your brain:

Thanks for the nice info. I am a little burnt by this biological stuff. That is why I am bad in biology. Don't have much tolerance. Sorry that I can not make response in a timely manner.

 

[NailsII]

Thanks for the nice info. I am a little burnt by this biological stuff. That is why I am bad in biology. Don't have much tolerance. Sorry that I can not make response in a timely manner.

No problem.

The point I am trying to make is that he centre may have a signifance for us, but not to anything else.