As Food Is Processed and Moves Through the Digestive Tract

question 42

Multiple Choice

As food is processed and moves through the digestive tract it changes form several times. What is the correct order of the stages of food processing?

• A) bolus → feces → chyme
• B) bolus → chyme → feces
• C) chyme → feces → bolus
• D) chyme → bolus → feces
• E) feces → bolus → chyme

---

Definitions:

Acetylcholine

A neurotransmitter important for learning and memory, also involved in muscle activation.

GABA

Gamma-aminobutyric acid, a neurotransmitter in the brain that plays a key role in reducing neuronal excitability and is involved in regulating anxiety.

Neurotransmitters

Chemical messengers that transmit signals across a chemical synapse, from one neuron to another target neuron.

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord, responsible for processing and sending out nerve signals.