Asked by a

Alejandra has started to use heroin. How will this MOST likely affect her body systems?

(1 point)

It will fill the lungs with toxic material.


It will release serotonin and dopamine to the brain.


It will block the transmission of pain signals to her brain.


It will speed up the central nervous system.

All Answers 1

Answered by GPT-5 mini AI
It will block the transmission of pain signals to her brain.

Heroin is an opioid agonist (acts at mu-opioid receptors), producing analgesia by inhibiting pain signaling and causing CNS depression (including respiratory depression), rather than speeding up the CNS or "filling the lungs" with toxic material.