-
Robert Hooke published Micrographia
I chose this event because it was the first important work that was about microscopical observation. He also named the microscopic units that made up the structure of a slice of cork, cells. -
Robert Brown recognizes the nucleus
I chose this even because he was the first to notice and know the nucleus as an essential part of cells. He also introduced the term nucleus. -
Matthias Jakob Schleiden aids in the composition of the cell theory
He suggested that every structural element of plants was made up of cells or their products. I chose this event because it was a large part of the cell theory. -
Period: to
Robert Remak, Rudolf Virchow and Albert Kölliker rebuted the theory of free cell formation
In the 1850s they rebutted the theory free cell formation as they showed that cells are come from pre-existing cells. I chose this event because Virchows aphorism "omnis cellula e cellula" along with their findings became a foundation of the tissue theory formation. -
Albert Kölliker wrote the fifth edition of his book on histology
He said that sensory and motor cells that were on the left and right haIves of the spinal cord were connected "by anastomoses” which was direct fusion. I chose this event because, it created more of an understanding of the human body. -
The introduction of Oil-immersion lens
I chose this event because the introduction of oil immersion lens led to the microtome technique which was being developed and other methods of fixing and dyeing that bettered microscopy. With those advancements our understanding of microorganisms and life were bettered. -
Joseph Gerlach expands Kölliker’s perspective
He said that in the central nervous system nerve cells were making anastomoses with one another. This was with a network that was created by "minute branching of their dendrites". I chose this event because this gave the science world more knowledge about the nervous system and cells. -
Camillo Golgi develops the Black Reaction
This reaction showed a entire view of a single nerve cell and its processes. They could then be observed and analyzed even if they were a long ways away from the cell body. I chose this event because it was an important breakthrough in neurocytology and neuroanatomy. -
Walther Flemming and the term ‘‘mitosis’’
Walther Flemming presented the term ‘‘mitosis’’ in 1882. He gave a definition of what it was and does. He thought that each half chromosome moves to the opposite pole of the mitotic nucleus. I chose this event because, it provided more evidence of how the living world is all united and connected. -
Wilhelm His's idea about the nerve-cell body
He though that the nerve-cell body and its " prolongations" form an independent unit. He purposed that a separation of cell units might be right when speaking about the central nervous system. The nervous system began to be considered just as any tissue as a sum of functioning independent cells. I chose this event because it changed the thought process of the nervous system. -
Wilhelm Waldeyer presented the term neurons
He presented the term "neurons" to designate the independent nerve cells. I chose this event because after that, cell theory that applied to the nervous system became known as the "neuron theory".