All areas of the tongue can detect tastes.
Papillae - cover layer of tonuge, help grip food and move it around while you chew.
Posterior region of the tongue called root is anchered to the hyoid bone.
People are born with about 10,000 taste buds.
Old person may only have 5,000 taste buds.
Taste buds detect: Sweet, Sour, Bitter, and salty flavors.
Each taste bud is made up of taste cells, which have sensitive, microscophic hairs called microvilli.
Palate
Roof of the oral cavity, comsists of 2 parts: Hard palate (located anteriorly) and Soft palate (located posteriorly).
Hard palate is made up of parts of the maxilla.
Soft palate extends back towards the uvula.
2 type of tonsils
Palatine tonsils
Pharyngeal tonsils
Teeth
Hardest substances in the body.
Primary teeth - baby teeth come in between 6 months and 2-4 years. 10 primary teeth form from the midline towards the side in this order: Central incisor, Lateral incisor, Cuspid (canine), First molar, and Second molar.
32 secondary teeth, 16 in each jaw.
Crown - above the gum.
Root - anchor into the jaw.
Neck - where crown and root meet.
Enamel - hardest substance, will not repair if damage.
Dentin - similar to bone, but harder makes up the bulk of teeth.
Pulp cavity - blood vessels, nerves and connective tissue.
Root canal - where blood vessels travel into the root.
Cementum and Periodontal ligament - hold the tooth in place in the jaw.
Papillae - cover layer of tonuge, help grip food and move it around while you chew.
Posterior region of the tongue called root is anchered to the hyoid bone.
People are born with about 10,000 taste buds.
Old person may only have 5,000 taste buds.
Taste buds detect: Sweet, Sour, Bitter, and salty flavors.
Each taste bud is made up of taste cells, which have sensitive, microscophic hairs called microvilli.
Palate
Roof of the oral cavity, comsists of 2 parts: Hard palate (located anteriorly) and Soft palate (located posteriorly).
Hard palate is made up of parts of the maxilla.
Soft palate extends back towards the uvula.
2 type of tonsils
Palatine tonsils
Pharyngeal tonsils
Teeth
Hardest substances in the body.
Primary teeth - baby teeth come in between 6 months and 2-4 years. 10 primary teeth form from the midline towards the side in this order: Central incisor, Lateral incisor, Cuspid (canine), First molar, and Second molar.
32 secondary teeth, 16 in each jaw.
Crown - above the gum.
Root - anchor into the jaw.
Neck - where crown and root meet.
Enamel - hardest substance, will not repair if damage.
Dentin - similar to bone, but harder makes up the bulk of teeth.
Pulp cavity - blood vessels, nerves and connective tissue.
Root canal - where blood vessels travel into the root.
Cementum and Periodontal ligament - hold the tooth in place in the jaw.