Acute Effects Of Smoking Tobacco

• Increased airways resistance occurs due to the nonspecific effects of submicronic particles, e.g. carbon particles less than 1 |im across. The effect is reflex; even inert particles of this size cause bronchial narrowing sufficient to double airways resistance; this is insufficient to cause dyspnoea, though it might affect athletic performance. Pure nicotine inhalations of concentration comparable to that reached in smoking do not increase airways resistance.

• Ciliary activity, after transient stimulation, is depressed, and particles are removed from the lungs more slowly.

• Carbon monoxide absorption may be clinically important in the presence of coronary heart disease (see above) although it is physiologically insignificant in healthy young adults.

Blood Pressure Health

Blood Pressure Health

Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...

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