Crayon-style diagram illustrating the digestive system's interaction with the brain, showing a brain, stomach, and intestines with labels and arrows for nerve signals.

Example: Digestive System Map Trigger: You eat a meal → food enters stomach Step 1 – Sensory Input: Receptors in stomach wall detect stretching and chemical changes Send signal via vagus nerve to medulla oblongata in the brainstem Step 2 – Integration: Medulla oblongata interprets the signals Hypothalamus may release hormones (like gastrin) to help digestion Step 3 – Motor Output: Brain sends signals through vagus nerve to: Smooth muscles → contract to mix food (peristalsis) Glands → secrete digestive enzymes and acid Step 4 – Effector/Response: Stomach churns and secretes enzymes → food digested Step 5 – Feedback: Stretch receptors in stomach send updates to brain Once food empties, signals decrease → stomach relaxes How to draw it Start with the brain at the top (or side) – label relevant parts (medulla, hypothalamus). Draw arrows to the body system (stomach, intestines, glands). Label the pathway – “vagus nerve,” “motor neuron,” etc. Use different colors for: Sensory signals → brain (blue) Motor signals → body (red) Feedback loops (green) Add small annotations at each step: “Stretch detected → signal sent via vagus nerve.” End with the feedback loop connecting the stomach back to the brain. Make it like a little kid drew it, just black outline and not straight lines or anything make it look human kid hand drawn See more