Question

176. Nicotine, present in tobacco smoke increases blood pressure and heart rate because (1) Smoking increases carbon monoxide content in the blood and reduces the concentration of haemobound oxygen (2) It stimulates the adernal gland to release adrenaline and nor-adrenaline (3) Nicotine receptors are adrenergic (4) Both (2) & (3) are correct​

Answer 1

Answer:

Acute exposure to passive smoking does not initially cause morphological alterations of the arterial wall. They are a result of direct action of carbon monoxide on endothelial cells and platelets and will appear later, becoming responsible for the rise in blood pressure.

Explanation:

The nicotine in cigarettes and other tobacco products makes your blood vessels get narrow and your heart beat faster, which makes your blood pressure get higher.