<span>c. provision of emergency services to injured victims at the accident scene.</span>
Your brain has nerves and those nerves run throughout your system so in that case your central nervous system control everything. It is like a director it tells your heart to pump blood it signals everything it even control your homeostasis and reflex.
Another name for kidney stones, is (Nephrolithiasis). Nephrolithiasis is the presence of calculi within the kidney. Nephrolithiasis is also the medical term for kidney stones.
So it's A. Nephrons
Glad to help ya!! :)
