John P. Merrill John P. Merrill John Putnam Merrill (March 10, 1917 – April 14, 1984) was an American physician and medical researcher. He led the team which performed the world's first successful kidney transplant. He generally credited as the "father of nephrology" or "the founder of nephrology," which is the scientific study of the kidney and its diseases. Merrill was born in 1917 in Hartford, Connecticut. After graduating from Dartmouth College in 1938, he attended the Harvard Medical School. He graduated in 1942; and he was an intern at the Peter Bent Brigham Hospital. During World War II, he served for four
Sensory organs of gastropods gene), which is also important for forming structures for balance in eumetazoans. Mechanoreceptor the mechanoreceptors are very crucial to the snail's sensory. This article incorporates CC-BY-2.0 text from the reference Sensory organs of gastropods The sensory organs of gastropods (snails and slugs) include olfactory organs, eyes, statocysts and mechanoreceptors. Gastropods have no sense of hearing. In terrestrial gastropods the most important sensory organs are the olfactory organs which are located on the tips of the 4 tentacles. In opisthobranch marine gastropods, the chemosensory organs are two protruding structures on top of the head. These are known as rhinophores. An opisthobranch