It could be birthmarks.
This is a case where the sailing vessel does not have the right of way. The overtaking vessel must stay clear of the vessel being overtaken. The best thing you could do would me to keep a steady course, or make any changes obvious so the overtaking sailboat knows what you are doing.
A hyperextended blood vessel could cause a stroke
will capsizes
Nitrogen by itself does not support combustion. But if pressuring a vessel with nitrogen and allowing it to overpressure (beyond vessel limits) a vessel can explode by fatigue. Under pressure, for example when scuba diving, yes, but otherwise, I don't think so.
the PWC
its a vessel in your eye. its a vessel in your eye.
No, a vessel could be a number of things, such as a containment pod or space shuttel.
Could be your diet. Do you use tobacco?
Wind could knock you over or blow your vessel into a submerged (unseen) obstruction.
That could be either a ketch or a yawl, depending on location of the wheelhouse.
No, a thoracotomy is incision in the chest for surgery