ANATOMY

Detailed explanation-1: -Acute or chronic cold exposure elicits several effects on the respiratory system. Pulmonary mechanics are compromised by bronchoconstriction, airway congestion, secretions and decreased mucociliary clearance.

Detailed explanation-2: -Influenza (flu) and the common cold are both contagious respiratory illnesses, but they are caused by different viruses.

Detailed explanation-3: -Coughing. Mucus dripping down your throat (post-nasal drip) Watery eyes. Fever (although most people with colds do not have fever)

Detailed explanation-4: -An increase in mucus production (a runny nose). Swelling of the lining of the nose (making it hard to breath and congestion). Sneezing (from the irritation in the nose). Cough (from the increased mucus dripping down the throat).