Why does the body absorb more free fatty acids in the small intestine compared to the stomach, even though both organs experience peristalsis?

💡 Explanation

Bile emulsification increases surface area for lipase activity, leading to enhanced fatty acid absorption in the small intestine, because emulsification reduces fat globule size, increasing enzymatic access. Therefore, more absorption occurs in the small intestine, rather than the stomach, where emulsification is limited.

• A patient with severe dehydration has impaired kidney function. Why does decreased glomerular filtration rate lead to oliguria (low urine output)?
• A patient with chronic kidney disease exhibits increasing fatigue and declining hemoglobin levels despite stable iron stores. Which mechanism explains this patient's developing anemia?
• A patient with a known peanut allergy experiences sudden respiratory distress after accidentally ingesting peanut oil. Which mechanism explains this acute allergic reaction?
• A cancer cell has a mutation causing constitutive activation of a growth factor receptor. If a drug inhibits a key protein in the apoptosis pathway, which consequence follows?
• Why does repeated use of certain recreational drugs lead to downregulation of neurotransmitter receptors in the brain?
• If a researcher isolates skeletal muscle fibers and introduces a non-hydrolyzable ATP analog during a contraction experiment, which consequence follows?