Which statement best describes the affect nicotine have on the central nervous system

Nicotine can act upon the central and peripheral nervous system. And its rapt effects include increase blood pressure and heart rate, constriction of arteries, and stimulation of the CNS. Once the nicotine is in the brain it activates receptors called cholinergic receptors.

Nicotine on direct application in humans causes irritation and burning sensation in the mouth and throat, increased salivation, nausea, abdominal pain, vomiting and diarrhea.

Your dog can sniff at or even eat a bit of catnip. the herb is edible and not harmful. just don't expect them to roll around like a cat would! your dog may scrutinize catnip by licking and smelling at it, or be totally indifferent to this stimulant.

Can you give answer choices?