It is a tracheotomy
Tracheotomy.
The medical term for incision of a membrane is "fenestration."
Cricothyroidotomy is the medical term meaning surgical incision into the cricoid.
an emergency procedure in which you make an incision in the throat to and esophagus to help breathing.
Adenotomy is surgical incision into a gland.
laparotomyLaparotomy means incision into the loin.
Thymotomy is surgical incision of the thymus.Thymotomy.
encephelotomy
Sphenoidotomy is the medical term meaning surgical incision into the sphenoid bone or sinus.
Labyrinthotomy is surgical incision of the labyrinth.
Vagotomy is the medical term meaning surgical incision of the vagus nerve.
Epididymis is a medical term. It's the location where sperm cells mature.