๐๐จ๐ฆ๐ ๐จ๐๐ฌ๐๐ซ๐ฏ๐๐ญ๐ข๐จ๐ง๐ฌ ๐จ๐ง ๐ญ๐ก๐ ๐ฆ๐ฎ๐๐ ๐ก๐๐ก (๐๐ก๐๐ฐ๐๐-๐ฅ๐ข๐ค๐) ๐ฌ๐ญ๐๐ ๐ ๐จ๐ ๐ก๐ฎ๐ฆ๐๐ง ๐๐๐ฏ๐๐ฅ๐จ๐ฉ๐ฆ๐๐ง๐ญ ๐๐ฌ ๐๐๐ฌ๐๐ซ๐ข๐๐๐ ๐ข๐ง ๐๐ก๐ ๐๐ฅ๐จ๐ซ๐ข๐จ๐ฎ๐ฌ ๐๐ฎ๐ซ๐๐ง
Mohamad Mostafa Nassar
Twitter:@NassarMohamadMR
Figure 1:ย Left lateral view of an embryo at Carnegie stage 14 (about 32 days). Photograph from the Carnegie Collection
The Qurโan mentions the termย mudghahย ู ูุถูุบูุฉู as the third stage of human prenatal development. The wordย mudghahย has several meanings:ย โsomething that has been chewed by the teethโ,ย โa piece of meat of a size that can be chewedโ and โthe small substances.โ These meanings were described in a previous post:ย Embryology in the Qurโan: The Mudghah Stage.
In this post I highlight some observations regarding the meaning of mudghah as โsomething that has been chewed by the teethโ.
Figure 2:ย Human embryo at Carnegie Stage 14, day 32 with 35 somites. The embryo is about 7.0 mm in length. Note the indentations that are identified between somites, and with these indentations, the embryo resembles a chewed substance in its external appearance
In Figure 2 above, the embryo looks somewhat like a chewed lump. The chewed appearance results from the somites which resemble teeth marks. The somites (cuboidal blocks of mesodermal tissue) represent the beginnings or primordia of the vertebrae. By the 3rd week of human embryonic development about 38 pairs somites form.
By the 5th week there are 42-44 pairs of somites. Most of the axial skeleton (skull, vertebral column, ribs, and sternum) and skeletal muscles will be derived from these somites. The appearance of the somites or โimprintsโ changes continuously, just as the teeth imprint changes on a chewed substance with each act of chewing. And just as a substance acquires furrows, swellings and a corrugated surface as it is being chewed, so does the appearance of the embryo.
Figure 3 shows a piece of gum that has been shaped like an embryo and then chewed. During the act of chewing, the dental impressions form an imprint of the teeth on both sides of the gum as shown in Figure 4. The teeth imprints and their segmental arrangement are said to resemble the somites of an embryo. The human embryo is also said to be segmented and the segments of the embryo consist of somites, the cell masses which develop into ribs, vertebrae and back muscles.[2]
As there were no microscopes available in the 7th century CE, people would notย have known that the human embryo had this chewed-like appearance.ย Professor Marshall Johnsonย states:
โYou have to be really careful on what is the definition of โseeingโ. I can see a piece of dandruff on this tabletop; I can just barely make it out because this is a nice black surface [but] I can see no detail in it. If I want to see detail in it then I need some sort of visual aid, something to aid my vision, I need a magnifying glass, I need a microscope. So I might be able to see a piece of dandruff, but to see any detail in it as is described in the Qurโan, I need an instrument that wasnโt developed until the 1700s.โ [4]
NOTES
[1] Adult teeth image modified from http://www.anselm.edu/homepage/jpitocch/genbio/humanteeth.JPG
[2] By the end of the third week the embryo undergoes segmentation, seeย ย Embryology in the Qurโan: The โAlaqah Stage, p. 11.
[3] The right lateral views shown here were modified from the left lateral views of the embryo and chewed gum.
[4] E. Marshal Johnson as quoted inย Surely the Qurโanic โAlaqah (the leech-like stage) is easily observed with the nakedย eye?
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Source Islamic Papers