Teeth
What hard tissue covers the crown of the tooth?
Enamel
What are the small, thread-like papillae that give the tongue its rough texture but lack taste buds?
Filiform papillae.
What type of epithelium lines the esophagus?
Non-keratinized stratified squamous epithelium
What type of oral mucosa lines the cheeks and underside of the tongue?
Lining mucosa (non-keratinized).
What type of muscle makes up the tongue?
Skeletal muscle
What anchors the tooth root to the alveolar bone?
Periodontal ligament
What epithelial transition occurs at the gastroesophageal junction?
Stratified squamous --> simple columnar epithelium
Which papillae contain von Ebner’s glands?
Circumvallate papillae.
What do chief cells produce?
Pepsin
Which cells form enamel, and where are they located during tooth development?
Ameloblasts; located on the outer surface of the developing enamel.
How does the muscular composition of the esophagus change?
Superior 1/3: skeletal, Middle 1/3: skeletal & smooth, Inferior 1/3: smooth