Disease

Biology

COMMON DENTAL DISEASES

COMMON DENTAL DISEASES

Dental Carries

Dental carries are the holes or cavities that are formed as acid corrodes enamel and eventually the dentine
Dental Carries

Dental carries are the holes or cavities that are formed as acid corrodes enamel and eventually the dentine

Causes

This is caused by bacteria acting on the food left between teeth and on the cusp
Acids are formed that eventually corrode the enamel
The pulp cavity is eventually reached
A lot of pain is experienced then
The bacteria then infect the pulp cavity and the whole tooth decays

This is caused by bacteria acting on the food left between teeth and on the cusp
Acids are formed that eventually corrode the enamel
The pulp cavity is eventually reached
A lot of pain is experienced then
The bacteria then infect the pulp cavity and the whole tooth decays

Biology

DISEASES OF THE RESPIRATORY SYSTEM

DISEASES OF THE RESPIRATORY SYSTEM

Asthma

Asthma is a chronic disease characterized by narrowing of air passages.

Causes:

Allergy

Due to pollen, dust, fur, animal hair, spores among others.
If these substances are inhaled, they trigger release of chemical substances and they may cause swelling of the bronchioles and bring about an asthma attack. Heredity
Asthma is usually associated with certain disorders which tend to occur in more than one member of a given family, thus suggesting’ a hereditary tendency.