Oral Biology and Histology Flashcards
6 cards from real INBDE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Oral Biology and Histology flashcards as text
Which cells are primarily responsible for producing dentin?
Answer: Odontoblasts
Odontoblasts are the cells that synthesize and secrete the organic matrix of dentin throughout life.
What is the primary inorganic component of enamel?
Answer: Hydroxyapatite
Hydroxyapatite crystals [Ca10(PO4)6(OH)2] make up approximately 96% of the inorganic content of mature enamel.
Which structure connects the enamel organ to the oral epithelium during tooth development?
Answer: Dental lamina
The dental lamina is the band of epithelium that connects the developing enamel organ to the oral epithelium.
Hunter-Schreger bands in enamel are best described as:
Answer: Alternating zones of enamel rods cut in different planes
Hunter-Schreger bands are optical phenomena produced by the alternating direction of enamel rods when viewed in reflected light.
Which zone of the dental pulp contains the highest concentration of collagen fibers?
Answer: Pulp core
The pulp core (central zone) contains the largest blood vessels and nerves and has the highest density of collagen fibers.
Cementum differs from bone primarily because cementum:
Answer: Is avascular
Cementum is avascular and receives its nutrition from the periodontal ligament, unlike bone which has its own blood supply via Haversian canals.