Talk:Book - A History of Science 20
From Embryology
People
Robert Remak
Robert Remak (1815 - 1865) Polish-German embryologist, physiologist, and neurologist.
- discovered and named in 1842 the three germ layers of the early embryo (ectoderm, mesoderm and endoderm).
- discovered the nonmedullated nerve fibres in 1838, and in 1844 the nerve cells of the heart, called Remak's ganglia.
Joseph von Gerlach
Joseph von Gerlach (April 3, 1820 – December 17, 1896) was a German professor of anatomy at the University of Erlangen. He was a native of Mainz, Rhineland-Palatinate. Gerlach was a pioneer of histological staining and anatomical micrography. In 1858 Gerlach introduced carmine mixed with gelatin as an histological stain.
- "Gerlach's valve" (valvula processus vermiformis) is named after him. This anatomical structure is a fold of membrane located at the opening of the vermiform appendix.
- He was a major proponent of the theory that the brain's nervous system consisted of processes of contiguous cells fused to create a massive meshed network.
(text from Wikipedia)