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Comment by stackghost | Hacker News Reader

>Here’s my multiple years of anatomy classes response: the heart isn’t on the left.

Why is the left lung smaller, then?

The heart is asymmetrical, but it’s in roughly the center of the chest. The left auricle and ventricle are larger muscles because they’re pumping through the descending aorta to the extremities, that’s the systemic circulatory branch, the plumbing for which is also largely to the right, while the right are pumping into the lungs alone as part of the pulmonary circulatory branch. The left lung (right on those with situs inversus) has two lobes and basically accommodates the extra muscle mass on its side of the heart, but if you really want to kill someone you stab them through the sternum, kind of dead center, not where they hold their hand when performing patriotism.

>if you really want to kill someone you stab them through the sternum, kind of dead center, not where they hold their hand when performing patriotism.

Noted, thanks.

even this is wrong, a penetrating weapon aimed for the heart is applied below the sternum at roughly the positionof the 3rd shirt button, and thrust upward at shallow angle topass behind the manubrium, and is then levered into a pommel upward position so as to lacerate the heart

Well, yes, the point of the solid bone plate right in front of your heart is to block stabbings. And it works!

If you had a weapon that wasn't bothered by the presence of the sternum, and you wanted to stab the heart, you'd go right through the sternum.

the risk is one of being unable to extract the weapon expediently.

there is an unacceptable risk of having to abandon it.

Unless you're also trying to send a message where leaving the weapon is the message

such as, a sculpture or other improvisation perhaps even advertising material.

https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2F... [JPG]

First, that’s because you want to keep your weapon, which implies you don’t really want to kill the killee. I’m assuming a half inch drill, and I’m leaving it powered up and spinning.

Second, note that what you don’t do when trying to hit the heart is aim left.

not only smaller but having 2 lobes rather than 3, the left lung is possessed of a featureknown as the cardiac "notch" an involution of the lobe that corresponds to the larger left ventricle of the heart.

More piping to and from the heart exists on the left instead of the right?

the Aorta and Vena Cava are muchmore central than sinistral.

the aortic arch begins decent left of the coronary corpus, but becomes centralized, tandem with the Vena Cava.

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