The preservation of tissue fine structure during rapid freezing.
D002467:Cell Nucleus; D006018:Glycols; D006652:Histological Techniques; D007053:Ice; D007668:Kidney / Q000166:cytology; D008722:Methods; D008854:Microscopy, Electron; D008928:Mitochondria; D010179:Pancreas / Q000166:cytology; D012270:Ribosomes
D006018:Glycols; D007053:Ice