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The invention of the microscope hoek
Dutch scientist Antoine van Leeuwenhoek designed high-powered single lens microscopes in the 1670s. -
Maggots and other creatures developed in decaying tissue
They lack a sophisticated digestive system. So as they move through a corpse or rotten food, they secrete fluid containing digestive enzymes to help them dissolve their foul meal. -
Hooke published Micrographia
Micrographia is a historically significant book by Robert Hooke about his observations through various lenses. -
The abbot Felice Fontana glimpsed the nucleus in epithelial cells
The abbot Felice Fontana sighted the nucleus in epithelial cells in the year 1781; however this structure had probably been viewed in animal and plant cells in the first decades of the 18th century. -
Achromatic microscopes were introduced
(1830s) That technical problem was not solved until the invention of achromatic lenses, which were introduced about 1830. -
A book by Karl Deiters, published posthumously
It contains beautiful descriptions and drawings of nerve cells studied by using histological methods and microdissections made with thin needles under the microscope -
The introduction of the oilimmersion lens
It was the development of the microtome technique and the use of new fixing methods and dyes greatly improved microscopy. -
The most important breakthrough in neurocytology and neuroanatomy came
When Golgi developed the ‘black reaction’22, which he announced to a friend with these few words, “I am delighted that I have found a new reaction to demonstrate, even to the blind, the structure of the interstitial stroma of the cerebral cortex. I let the silver nitrate react with pieces of brain hardened in potassium dichromate. I have obtained magnificent results and hope to do even better in the future.” -
Introduced the idea that the nerve-cell body and its prolongations form an independent unit
Wilhelm His sought some unification in neurology by proposing that the nerve cell body and its prolongations form an independent cellular unit. -
The term ‘‘ergastoplasm’’ (endoplasmic reticulum) was introduced
This term was introduced by C. Gamier for highly developed endoplasmic reticulum with ribosomes in synthetically active cells. Thus, ergastoplasm refers to well-developed endoplasmic reticulum along with ribosomes in some parts of metabolically active cells.