In this procedure, the surgeon inserts a small tube or valve to drain excess endolymph fluid into a space near the mastoid bone and/or removes some of the bone surrounding the endolymphatic sac in order to reduce pressure on it
The sigmoid sinus is then collapsed with gentle pressure. The surgeon exposes the endolymphatic sac and makes an incision in it in order to insert the shunt.
Thecal sac flattening occurs when a herniated disc has into the spinal canal that it is pushing on the thecal sac. The thecal sac is the membrane of dura mater that surrounds the spinal cord and the cauda equina.
The protective sac around the embryo or fetus is the amniotic sac.
un sac
un
A small sac called a basidium
The Amniotic Sac is the sac that contains the baby.
a bag is 'un sac' in French.
Sac or Sac a main.
A sac that holds venom.
the air sac itself.
The correct spelling of cul de sac in French is "cul-de-sac."