It's an ear drum with a hole over towards one edge.
6-8 wweks
yes
The peritoneum is at risk of infection with ruptured or perforated appendices.
Yes - usually to transport molecules of various types either into or out of the cell.
if the defect is relatively large, or if there is a poor blood supply or an infection during the healing process
A perforated septum is not serious.
Another name for a eardrum can be called a Tympanic membrane.
Nuclear Envelope is a double membrane covering which separates the nucleus from the cytoplasm. It is a discontinuous covering which us perforated by several nuclear pores. Nuclear pores allow exchange of materials between the nucleus and cytoplasm. The outer membrane of nucleus is usually connected with endoplasmic reticulum. It bears ribosomes.
perforated metal is stronger
The man had a perforated bowel which spilled infection into his peritoneal cavity.
Non-perforated mean no holes in the object or something like that
can you go on a simulated sky dive with a perforated ear drum