Jan Swammerdam was a Dutch biologist and microscopist. His work on insects demonstrated that the various phases during the life of an insect - egg, larva, pupa, and adult - are different forms of the same animal. As part of his anatomical research, he carried out experiments on muscle contraction.
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Photos 9
Oudeschans, drawing by Jan de Beijer
Illustration of a mosquito from Historia
Miraculum naturae sive uteri muliebris fabrica
Bybel der Natuure, 1693
Swammerdam's drawing of the queen bee's reproductive organs, as observed through the microscope.
Swammerdam's illustration of a nerve-muscle preparation. He placed a frog thigh muscle in a glass syringe with a nerve protruding from a hole in the side of the container. Irritating the nerve caused the muscle to contract, but the level of the water, and thus the volume of the muscle, did not increase.
Amsterdam Oudeschans 18 detailDoctors born in the 1630s 6
About this person
Jan Swammerdam was a Dutch biologist and microscopist. His work on insects demonstrated that the various phases during the life of an insect - egg, larva, pupa, and adult - are different forms of the same animal. As part of his anatomical research, he carried out experiments on muscle contraction. In 1658, he was the first to observe and describe red blood cells. He was one of the first people to use the microscope in dissections, and his techniques remained useful for hundreds of years.
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