Salaam Deliverence,
Milk is essentially formed from proteins, carbohydrates, fat, and many other elements, and vitamins and water. And all of this is extracted from the animal's nutrition (food that they consume), drink and blood, described through Allah Statement. The word that one should be focusing on is "wadamin"
The word farthin is also known to us as changed to a thick liquid is called chyme which is the process in cows and other animals.
The raw materials for milk production are transported via the bloodstream to the secretory cells
People automatically assume that blood is red, which it is not, blood is made out of calcium, vitamins, protein, sugars and several other nutrients.
Milk is synthesized in the mammary gland. Within the mammary gland is the milk producing unit, the alveolus. It contains a single layer of epithelial secretory cells surrounding a central storage area called the lumen, which is connected to a duct system. The secretory cells are, in turn, surrounded by a layer of myoepithelial cells and blood capillaries.
"Milk Biosynthesis
Milk is synthesized in the mammary gland. Within the mammary gland is the milk producing unit, the alveolus. It contains a single layer of epithelial secretory cells surrounding a central storage area called the lumen, which is connected to a duct system. The secretory cells are, in turn, surrounded by a layer of myoepithelial cells and blood capillaries.
Udder, Alveolus, Secretory Cell: 26 KB
The raw materials for milk production are transported via the bloodstream to the secretory cells. It takes 400-800 L of blood to deliver components for 1 L of milk.
• Proteins: building blocks are amino acids in the blood. Casein micelles, or small aggregates thereof, may begin aggregation in Golgi vesicles within the secretory cell.
• Lipids:
o C4-C14 fatty acids are synthesized in the cells
o C16 and greater fatty acids are preformed as a result of rumen hydrogenation and are transported directly in the blood
• Lactose: milk is in osmotic equilibrium with the blood and is controlled by lactose, K, Na, Cl; lactose synthesis regulates the volume of milk secreted
The milk components are synthesized within the cells, mainly by the endoplasmic reticulum (ER) and its attached ribosomes. The energy for the ER is supplied by the mitochondria. The components are then passed along to the Golgi apparatus, which is responsible for their eventual movement out of the cell in the form of vesicles. Both vesicles containing aqueous non-fat components, as well as liquid droplets (synthesized by the ER) must pass through the cytoplasm and the apical plasma membrane to be deposited in the lumen. It is thought that the milk fat globule membrane is comprised of the apical plasma membrane of the secretory cell.
Milking stimuli, such as a sucking calf, a warm wash cloth, the regime of parlour etc., causes the release of a hormone called oxytocin. Oxytocin is released from the pituitary gland, below the brain, to begin the process of milk let-down. As a result of this hormone stimulation, the muscles begin to compress the alveoli, causing a pressure in the udder known as letdown reflex, and the milk components stored in the lumen are released into the duct system. The milk is forced down into the teat cistern from which it is milked. The let-down reflex fades as the oxytocin is degraded, within 4-7 minutes. It is very difficult to milk after this time."
buṭūnihi (bellies) min (from) bayni (between) farthin (the food) wadamin (blood) labanan (milk) khāliṣan (milk) The nutrients from the food that a human female eats, has the same process for making the milk to feed their baby.
https://www.uoguelph.ca/foodscience/dairy-science-and-technology/dairy-chemistry-and-You will be amazed on all the clues that Allah gives us indeed. He also mentions it in verse 41:53 "Soon We will show them our signs in the horizons and in themselves until t becomes clear to them that it is the truth, is it not sufficient concerning your lord that He is over all things a witness?
So no, it is not feces, because feces is just that feces/dung because there is no use for it that is why it exists the body. It is only feces when all the nutrients is extracted from the food. The anatomy of a human or animal for that matter as far as digestion is concerned is the same when it comes down to waste/feces/urine, once the nutrients is extracted the rest goes on it's way to form and exit the body.
https://www.uoguelph.ca/foodscience/dairy-science-and-technology/dairy-chemistry-and-
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