Dental Pulp- Exam II Flashcards
What components can be found in mature dental pulp?
dentin
predentin
odontoblast layer
cell rich zone
pulpal core
pulpal dendritic cells
The dental pulp consists of ____ tissue derived from ____ cells.
loose connective tissue; neural crest (ectomesynchemal) cells
Mature dental pulp is divided into what two compartments?
Odontogenic zone and pulpal core
Odontoblast cell layer
cell-free zone of Weil
Cell-rich zone
Parietal plexus of nerves (Raschkow’s Plexus)
These are all components of:
Odontogenic zone of mature dentin
Fibroblasts
Type 1 and 3 collagen
Extracellular matrix
Blood vessels
Nerve tissue
These are all components of:
Pulpal core of mature dentin
The functions of the dental pulp include:
- embryonic induction
- Formative
- Protective
- Reparative
Cell populations in pulpal tissues include: (8)
- odontoblasts
- fibroblasts
- undifferentiated mesenchymal cells
- macrophages
- dendritic cells
- blood vessel related cells
- neural-related cells
- lymphocytes
The extracellular matrix of pulpal tissues incudes what type of collagen?
type 1, 3, 4 and 5
Non-collagenous matrix components of dental pulp include: (5)
- proteoglycans
- glycosaminoglycans
- phosphoproteins
- glycoproteins
- gamma-carboxyglutamate- containing proteins
The gamma-carboxyglutamate-contianing proteins include:
- BMP 2, 4 and 7
- fibroblast growth factor
- epidermal growth factor
- dentin matrix protein
Pulpal innervation includes both _____ and ____ nerve axons.
myelinated and unmyelinated
The pulpal innervation (axons) progressively branch, passing through the subodontoblastic layer as the _______.
parietal neural plexus
The parietal neural plexus may also be called:
Rashchows plexus
The pulpal axons progressively branch, passing through the subodontoblastic layer as teh parietal neural pelxus , on to the _____ cell layer and some fibers enter into ____.
odontoblastic cell layer; dentinal tubules
Most nerve endings in pulp are for:
pain
The nerve endings in pulp that are for pain are:
free nerve endings as sensory afferents from trigeminal nerve
A few nerve endings in the dental pulp are concerned with:
vasodilation and vasoconstricton
sensory afferents in the dental pulp come from:
trigeminal nerve (CN5)
Sensory afferents from the trigeminal nerve in the dental pulp include:
- pain
- mechanical (pressure)
- thermal (heat)
- tactile (touch)
____ branches from the superior cervical ganglion are primarily vasomotor fibers to pulpal blood vessels, concerned for the most part, with ____.
sympathetic; vasoconstriction
The majority of myelinated pulpal nerve axons in dental pulp are:
A-delta
A-delta myelinated pulpal nerve axons are:
fast conducting