Careful tooth brushing is an important part of oral hygiene.
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Tools for tooth brushing
- dental floss
- cup for tooth brushing
- tooth neck
- tooth enamel
- decayed part
- teeth - Humans have 20 milk teeth during infancy. The number of permanent teeth is 28-32.
- tongue - A muscular organ with a characteristic shape. It plays an important role in chewing, forming a bolus, as well as in speech and the formation of some facial expressions.
- gum - A mucous tissue that covers the bones into which the teeth are fixed.
- hard palate - A bony plate covered with mucous membrane at the front of the roof of the mouth.
- soft palate - The soft tissue that forms the back of the roof of the mouth. It separates the oral cavity from the nasal cavity.
- uvula - A conic projection at the back of the soft palate, covered by mucous membrane. Its primary function is to prevent food from entering the nasopharynx.
- vestibule - The part of the oral cavity found between the teeth and the cheeks.
Humans have 4 types of teeth: incisors, canines, premolars and molars.
Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.
The dentition of different species of mammals reflect their feeding habits.
This animation demonstrates how a washing machine works.
The first section of the gastrointestinal tract comprises the oral cavity, the pharynx and the oesophagus.
During swallowing food travels from the mouth cavity into the stomach.
When producing sound, the vocal cords are vibrated by the air flowing out of the lung.
This animation helps you learn the basics of healthy eating.