Question

the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order.
the central nervous system relays an impulse to certain brain regions.
isabels breathing rate increases.
sensory neurons generate an impulse.
sensory receptors in the arteries detect low oxygen levels.
the brain sends signals through motor neurons.

Explanation:

The body's regulatory process for breathing in response to low - oxygen levels starts with sensory receptors detecting low oxygen in arteries. Then sensory neurons generate an impulse. This impulse is relayed by the central nervous system to certain brain regions. The brain sends signals through motor neurons, and finally, the breathing rate increases.

Answer:

1. Sensory receptors in the arteries detect low oxygen levels.
2. Sensory neurons generate an impulse.
3. The central nervous system relays an impulse to certain brain regions.
4. The brain sends signals through motor neurons.
5. Isabel's breathing rate increases.