[Verse 1]
Stomach drops acid like a chemist with a vendetta,
Chief cells pour out pepsinogen, parietal cells do better —
Hydrochloric acid, intrinsic factor, tight and clever,
Without that glycoprotein, B12 absorption — never.
Motor function churns the bolus, trituration of the mass,
Three layers of muscle coordinating what will pass,
Gastrin signals antrum, CCK waits downstream,
The stomach is the opening act to a digestive regime.
[Chorus]
El estómago, el intestino, el colorecto —
Secreción, absorción, motilidad — perfecto.
Stomach, bowel, colon — learn the functions cold,
Resect a segment, predict what consequence unfolds.
O intestino sabe o que o corpo precisa,
Cut away the tissue, read the physiologic visa.
Functions four: secretory, motor, immune, absorptive —
When you bypass any segment, expect the disruptive.
[Verse 2]
Small intestine — duodenum first, recibiendo bile and pan,
Iron and folate absorption here, a meticulous plan.
Jejunum handles carbohydrates, amino acids too,
Brush border enzymes — lactase, maltase — breaking residue.
Ileum's the specialist: bile salts recycled tight,
Enterohepatic circulation running day and night —
Resect the terminal ileum, bile salt diarrhea erupts,
B12 deficiency, fat malabsorption — the cascade corrupts.
Peyer's patches lining ileal walls, immune surveillance dense,
Mucosa-associated lymphoid tissue — the body's own defence.
[Chorus]
El estómago, el intestino, el colorecto —
Secreción, absorción, motilidad — perfecto.
Stomach, bowel, colon — learn the functions cold,
Resect a segment, predict what consequence unfolds.
O intestino sabe o que o corpo precisa,
Cut away the tissue, read the physiologic visa.
Functions four: secretory, motor, immune, absorptive —
When you bypass any segment, expect the disruptive.
[Bridge]
Now here's a rare word, surgeon — colubrine — sinuous, serpentine,
Like the colon winding proximal to sigmoid, a colubrine design.
The colon absorbs sodium, water salvaged from the flux,
Short-chain fatty acids from fermentation — colonocyte crux.
Bypass the colon — diarrhea, electrolyte depletion hits,
Short bowel syndrome quantified by whatever segment quits.
Gastric bypass? Dumping syndrome, hypoglycaemia cascades,
Achlorhydria post-gastrectomy — bacterial overgrowth invades.
[Verse 3]
Colorectum — not just passage, it's a metabolic throne,
Ferments resistant starch to butyrate, feeds the mucosa alone.
Motor: haustral contractions, mass movement, defecation reflex,
Low anterior resection — anterior resection syndrome perplexes.
Immune function: tolerogenic dendritic cells patrolling the lumen,
Regulatory T-cells dampening inflammation — profoundly human.
Resect right colon — fluid balance falters, bile acid surge,
Resect the rectum — continence mechanisms on the verge.