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单词 Jan Swammerdam
释义

Jan Swammerdam

原声例句
电台实验室

That's Jan Swammerdam, a  Dutch microscopist from the 1600s.

莫莉:这是 Jan Swammerdam,一位 1600 年代的荷兰显微镜学家。

英语百科

Jan Swammerdam

Illustration of a Mosquito from Historia
Miraculum naturae sive uteri muliebris fabrica
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.

Jan Swammerdam (February 12, 1637 – February 17, 1680) 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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更新时间:2025/6/17 12:17:59