pulp

• less dense, innermost soft, connective tissue of the tooth

  dental pulp
• Nutritive supplies nutrients and moisture to dentin through the blood vascular supply to the odontoblasts

  true
• response to irritation

  defensive or reparative
• production of primary and secondary dentin

  formative or developmental
• form and maintain the dentin

  odontoblast
• life span of the odontoblasts is equal that of viable tooth

  true
• dental pulp and its contents give dentin its viability and ability to respond to various stimuli

  false
• forms and maintain pulp matrix which consists of collagen and ground substance

  fibroblast
• young pulp: flattened spindle-shaped cells with dense nuclei

  false
• undifferentiated ectomesenchymal cells is a pool from which pulp connective tissue cells are derived

  true
• mesenchymal cells that have self-renewal capability

  dental pulp stem cells
• bone-marrow is derived from

  dendritic cells
• matrix and ground substance are consists of collagen and ground substance that make up the intracellular matrix of the pulp

  false
• acts as a medium for the transport of nutrients

  ground substance
• enter and exit the dental pulp

  blood vessels
• extensive plexus of nerves in the cell-free zone of weil

  subodontoblastic plexus of Raschkow
• nerves enter the pulp through the apical foramen along with the afferent blood vessels and together form the ____

  neurovascular bundle
• act as a receptor in the odontoblastic theory

  odontoblasts
• stimulated directly or indirectly by fluid movement

  hydrodynamic theory
• dentin is innervated directly

  nerve theory
• mineralized masses of dentin either amorphous or complete with dentinal tubules

  pulp stones
• pulp stones are attached to the outer pulpal wall

  false
• young teeth have smaller pulp

  false
• as age changes, the volume of the pulp chamber and root canal is increased due to continued dentin deposition

  false
• increased brittleness and decreased permeability

  sclerotic dentin
• age changes render pulp more resistant to environmental injury- tubule occlusion

  true
• more severe stimulus- tertiary dentin

  true