Which labeled structure carries swallowed food from the throat toward the organ that churns it?

Where does most absorption of digested nutrients occur?

Which finger-like structures increase the gut lining's surface area for nutrient uptake?

What is the semifluid mixture formed when food combines with gastric juices?

Which muscle action pushes a swallowed bolus through the esophagus toward the stomach?

Ana chews a piece of pandesal into smaller pieces. Which process is this?

What does salivary amylase begin breaking down?

Which substances speed up the chemical reactions that break down food?

Which labeled pair makes and stores bile, respectively?

How does bile help with fat processing?

Why does the digestive tract secrete mucus?

Which labeled structure reclaims water from material left after most digestion and nutrient uptake?

What process removes undigested material from the digestive tract as feces?

After nutrients enter the blood, which system delivers them to body cells?

How does the pictured system help regulate digestion?

Which labeled structure filters blood and removes wastes into urine?

Poor absorption of protein-digestion products slows tissue repair. Which building blocks are less available for making new proteins?

A student drinks enough water but eats little fiber. Which dietary change would best help prevent constipation?

In this model, what occurs at stage 2?

Which flowchart correctly models the route of glucose from the intestine to a muscle?