Blood Circulation And Formation of Milk
Anatomy of Mammary Gland

Milk is synthesized & produced in the mammary glands. Within the mammary gland is the milk manufacturing unit, the Alveolus. It contains a single layer of epithelial secretory cells circling a central storage area called the Lumen, which is connected to a duct system. The secretory cells are further surrounded by a layer of Myoepithelial cells and blood capillaries. The raw materials for milk production transported through the bloodstream to the secretory cells. It takes 400 to 800 Liters of blood to deliver components for 1 Liter of milk.
William Harvey born 1578 was an English physician and the first known physician to describe completely, and in detail, the blood circulation and properties of blood being pumped to the brain and body by the heart. He discovered this many centuries after the Quran revealed. At the time of the revelation of the Quran, the fact that the blood carries the nutrients absorbed from digested food into its constituents to mammary glands for production of milk was not known.
Quran Miracle, Surah Nahl: Production of Milk

The blood collects and transports the substances formed by digested food to organs. This process is initiated by blood coming into contact with the contents of intestines on their walls.
Now look that almost 1400 years ago this is what the Quran told us in Surah Nahl verse 66.
٦٦ وَإِنَّ لَكُمْ فِي الْأَنْعَامِ لَعِبْرَةً ۖ نُسْقِيكُمْ مِمَّا فِي بُطُونِهِ مِنْ بَيْنِ فَرْثٍ وَدَمٍ لَبَنًا خَالِصًا سَائِغًا لِلشَّارِبِينَ
And indeed, for you in grazing livestock is a lesson. We give you drink from what is in their bellies – between excretion and blood – pure milk, palatable to drinkers. Surah Nahl 16:66

Milk is composed of carbohydrates, proteins, fat, many vitamins and water. And all of this is extracted from the animal’s nutrition. This knowledge regarding the contents of food in the gut and of blood and that this white substance (Milk) could be a product of blood, not known to people of the past and thus a great Miracle of Quran that it mentioned such a complex phenomenon of modern biology.
DETAILED ANALYSIS OF THE IMPORTANT WORDS USED IS GIVEN BELOW
فَرْثٍ
The twelfth word of verse 16:66 is an indefinite masculine noun and is in the genitive case مجرور. The noun’s root is (ف ر ث). This root occurs only once in the Quran, as the noun farth (فَرْث).
N – genitive masculine indefinite noun اسم مجرور
(ف ر ث): To let out the contents, scatter, and give out. Farath فرث: To feel heaving of the stomach. Faritha فرث : To be scattered. Farthun فرث: Contents of the stomach; Excrement; Dung; Faeces: while remaining in the stomach of a ruminant animal; anything that is scattered from a bag or other receptacle for traveling provisions etc.
دَمٍ
The thirteenth word of verse 16:66 is a noun. The indefinite noun is masculine and is in the genitive case مجرور. The noun’s root is (د م و). This root occurs 10 times in the Quran as the noun dam (دَم).
N – genitive masculine indefinite noun اسم مجرور
(د م و): To bleed, be bloodstained. Damun دم plu. Damâ’un دما. The hamza (ء) here takes the place of final ya (ى): Blood.
PLEASE ALSO READ BIBLE MIRACLES
Bible Miracle: Life is in the Blood
Leviticus 17:11 Miracle: For the life of the flesh is in the blood
Share this article
Written by : TheLastDialogue
A Synthesis of Religions: The Case of God
Praise belongs to God, the Lord of all realms, the Originator of the heavens and the earth, the One who shaped the human being from clay and breathed into him of His Spirit; the One who sent Messengers, one after another, bearing truth, guidance, and the balance, so that mankind may stand upon justice and not transgress its bounds.
Here is a discourse meant not to conquer but to illuminate, Not to divide but to gather, Not to exalt the writer but to exalt the Word of God. So approach with hearts unburdened, With intellects awakened, With spirits yearning for the Mercy of the All-Merciful. For the earth endures by His command, And knowledge is a trust, And every soul shall be returned to its Lord.
The Last Dialogue (thelastdialogue.org) recognized as a pivotal resource in comparative theology. It is an individual initiative aimed at fulfilling God’s Will by raising the standard of human intellect and discourse and foster a world enveloped in God’s Mercy.
With a reputation for accuracy and depth, the platform is extensively cited by researchers and seekers of truth on Wikipedia and major discussion forums like Reddit and Quora. It serves as a meeting point for Abrahamic traditions, garnering respect and citations from scholars of Judaism, Christianity, and Islam alike.
It distinguishes itself as the sole religious platform adhering to the noble tradition of not soliciting charity, zakat, or donations – a practice aligned with the true Sunnah of Prophets.
قُلْ مَا أَسْأَلُكُمْ عَلَيْهِ مِنْ أَجْرٍ وَمَا أَنَا مِنَ الْمُتَكَلِّفِينَ
Say, "I do not ask you for this any payment, and I am not of the pretentious.






