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Semen Production in the Quran: Difference between revisions
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It is incorrect to assume the position of the embryonic gonads from the position of the adult kidneys, as the embryonic positions of gonads and kidneys are not the same as their adult positions. Gonads descend, while kidneys enlarge and ascend. It should also be noted that the developing gonads are ventro-medial to the mesonephros (i.e. the embryonic kidney) and not the metanephros (which would develop into the adult kidney). Hence it would seem that Zakir Naik does not know the embryology of the urogenital system and cannot differentiate between the mesonephros and the metanephros. | It is incorrect to assume the position of the embryonic gonads from the position of the adult kidneys, as the embryonic positions of gonads and kidneys are not the same as their adult positions. Gonads descend, while kidneys enlarge and ascend. It should also be noted that the developing gonads are ventro-medial to the mesonephros (i.e. the embryonic kidney) and not the metanephros (which would develop into the adult kidney). Hence it would seem that Zakir Naik does not know the embryology of the urogenital system and cannot differentiate between the mesonephros and the metanephros. | ||
Even if Naik’s implied association between embryonic and adult anatomical positions were to be accepted, he is also wrong because in the condition of cryptorchidism where the testes is undescended, the highest position of the undescended testes is | Even if Naik’s implied association between embryonic and adult anatomical positions were to be accepted, he is also wrong because in the condition of cryptorchidism where the testes is undescended, the highest position of the undescended testes is ''below'' the kidney.<ref>[http://www.nakshatras.net/genetics_basics.htm genetics basics]</ref> | ||
Note that the inferior pole of the kidney lies around ''L3'' (the third lumbar vertebra), thus the embryonic testes must be below ''L3''. The twelth rib does not extend below ''L2''. Since the testes are ''below'' the kidneys, there is no possibility that the testes were ever between the ribs and the backbone either in the embryonic or the adult (as with cryptorchidism) stage. | Note that the inferior pole of the kidney lies around ''L3'' (the third lumbar vertebra), thus the embryonic testes must be below ''L3''. The twelth rib does not extend below ''L2''. Since the testes are ''below'' the kidneys, there is no possibility that the testes were ever between the ribs and the backbone either in the embryonic or the adult (as with cryptorchidism) stage. | ||