Question

"Follow the path of a bite of supreme pizza from your mouth to out of the body. What happens to it along the way? Describe the events along the way including but not limited to: digestion, the enzymes (where and what), the movement, the pathway, the organs involved, nervous signals, blood flow changes, and absorption, etc.."

Answer 1

ANS. Events along the pathway of food:

After taking bite of pizza saliva present in mouth helps  moistening our food creating a food bolus, so that it can be swallowed easily. Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. before the food reaches the stomach.

After that our food enters the Gastrointestinal for the breakdown and ingestion of different fluids expected to support life. Various organs have fundamental parts in the absorption of sustenance, from the mechanical upsetting by the teeth to the formation of bile an emulsifier by the liver. Bile generation of the liver assumes a vital part in assimilation: from being put away and packed in the gallbladder amid fasting stages to being released to the small digestive tract.

To comprehend the collaborations of the distinctive parts we might take after the nourishment on its excursion through the human body. Amid assimilation, two fundamental procedures happen in the meantime;
Mechanical Digestion: bigger bits of nourishment get separated into littler pieces while being set up for concoction absorption. Mechanical absorption begins in the mouth and proceeds into the stomach.
Compound Digestion: begins in the mouth and proceeds into the digestion tracts. A few distinct proteins separate macromolecules into littler atoms that can be assimilated,

The smooth muscles of the tubular stomach related organs move the nourishment proficiently along as it is separated into assimilate capable iotas and particles. Amid ingestion, the supplements that originate from nourishment, (for example, proteins, fats, starches, vitamins, and minerals) go through the mass of the small digestive system and into the circulation system and lymph. Along these lines supplements can be dispersed all through whatever is left of the body. In the digestive organ there is re assimilation of water and ingestion of a few minerals as dung are shaped. The parts of the nourishment that the body goes out through the butt is known as defecation.

Absorption starts in the mouth. A cerebrum reflex triggers the stream of spit when we see or even consider nourishment. Salivation saturates the nourishment while the teeth bite it up and make it simpler to swallow. Amylase, which is the stomach related catalyst found in spit, begins to separate starch into less complex sugars previously the sustenance even leaves the mouth. The apprehensive pathway associated with salivary discharge requires incitement of receptors in the mouth, tangible driving forces to the mind stem, and parasympathetic motivations to salivary organs.

Gulping your nourishment happens when the muscles in your tongue and mouth move the sustenance into your pharynx. The pharynx, which is the way for sustenance and air, is around five inches (5") long. A little fold of skin brought the epiglottis closes over the pharynx to keep sustenance from entering the trachea and along these lines gagging. For gulping to happen accurately a mix of 25 muscles should all cooperate in the meantime. Salivary organs additionally create an expected three liters of salivation for each day.