History of Embryology Crossword Flashcards
Who coined the term ‘cell’?
Hooke
Who described the concepts of oviparity, viviparity and ovoviviparity?
Aristotle
Who demonstrated that only one sperm is required for fertilisation in 1876?
Fol
Who concluded that the ‘testicles’ of a woman were analogous to the ovaries of the dog fish?
Steno
Postulated existence of a preformed individual in a sperm- illustrated in his ‘Essay de Dioptrique’?
Hartsoeker
Who described sperm-egg pronuclear fusion in sea urchin in 1876?
Hertwig
Who described a follicle rupture in rabbits?
Dagraaf
Who was credited with the discovery of sperm in 1678?
Vanhoeuwenhoek
Who demonstrated physical contact between sperm and egg required for fertilisation by putting ‘trousers’ on frogs?
Spallanazani
What is the belief that organisms develop from miniature versions of themselves already fully formed in the sperm/egg prior to conception?
Preformationism
Who demonstrated sperm entry into a frog egg in 1854?
Newport
Who carried out the first successful artificial insemination (in a dog)
Spallanzani
Who coined the phrase ‘ex ova omnia’ (everything comes from the egg)
Harvey
Who described pathogenesis in aphids?
Bonnet
What is the belief that organisms arise through a series of stages gradually produced from an undifferentiated mass?
Epigenhesis
Who first observed and described a mammalian egg/oocyte?
Vonbaer
Who concluded that all animals derive from eggs laid by the same species. Also, refuted the notion of spontaneous generation?
Swammardam
Who first postulated that generation occurred due to the joint action of two kinds of semen- one from male ejaculate, the other from female menstrual blood ?
Hippocrates
