Dental Histology Quiz

The underside of the tongue is smooth, covered by a thick, non-keratinized lining, and hosts many small salivary glands.

The top surface of the tongue features numerous small bumps called papillae, giving it a bumpy texture.

A V-shaped groove on the tongue that separates the front two-thirds (papillary area) from the back third (tonsillar area).

The four main types of tongue papillae are: Filiform, Fungiform, Circumvallate, Foliate. Each type has a unique shape and role in the mouth.

The red area at the edge of the lips, covered by thin, keratinized epithelium, separating the oral mucosa from the skin.

The hardest substance in the human body, it is composed of about 96% calcium hydroxyapatite and only 2%-3% organic material, including very few proteins and no collagen.

Specialized cells that generate enamel, they are derived from ectodermal lining of the embryonic oral cavity.

Specialized cells that generate dentin, they are derived from neural crest cells.

The central cavity within a tooth, it contains blood vessels, nerves, and connective tissue

Inorganic mineral found in enamel and bone, providing hardness and strength.

Initial set of teeth that develop in infants, typically begin to erupt around 6 months after birth.

Secondary set of teeth, these erupt after the primary teeth are shed, typically around age 6.

The developmental stage where tooth buds are formed before the permanent teeth erupt.

The innermost lining of the digestive tract, made of epithelium, lamina propria, and muscularis mucosae.

The layer beneath the mucosa, containing blood vessels, nerves, and connective tissue.

The muscular layer responsible for moving food through the digestive tract.

The outermost layer of the digestive tract, connecting it to surrounding structures.

The narrow opening at the center of the esophagus, through which food passes.

The process of tooth development that begins in the embryo.

The first layer of dentin that is formed by odontoblasts.

The layer of cells lining the oral cavity that grows into the underlying mesenchyme during tooth formation.

The soft, connective tissue found under the ectoderm that interacts with the growing ectoderm during tooth formation.

The process where ameloblasts and odontoblasts move apart during tooth development.

The space between the ameloblasts and odontoblasts where predentin is deposited.

The process of forming dentin, the hard tissue inside teeth, starts when odontoblast process (OP) extensions grow from each odontoblast cell and are surrounded by new matrix. The matrix calcifies and becomes different from predentin, the layer before calcification.

The outermost layer of a tooth, made of enamel, consists of enamel rods. These rods extend through the entire thickness of the enamel layer, giving it strength and durability.

The layer of dentin that is not yet calcified. It is the soft, newly formed layer where the odontoblast process extends.

The long, thin extension of an odontoblast cell that plays a crucial role in dentin formation. It grows as new matrix is laid down.

The living tissue inside a tooth, containing blood vessels, nerves, and connective tissue. It provides nourishment to the dentin and gives teeth sensitivity.

A hard, mineralized tissue that surrounds a tooth's pulp. It helps protect the tooth from damage.

Parietal cells are cells found in the stomach lining. They produce hydrochloric acid (HCl) and intrinsic factor, vital for absorbing vitamin B12.

Intrinsic factor is a protein produced by parietal cells. It helps the body absorb vitamin B12 from the gut.

Pernicious anemia occurs when the body doesn't absorb enough vitamin B12 due to damaged parietal cells or a lack of intrinsic factor.

Vitamin B12 is crucial for healthy DNA synthesis and red blood cell production.

Gastric pits are invaginations or depressions in the stomach lining, lined by mucous cells. They open into the stomach lumen and play a role in digestion.