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Pulp
Histo Exam 4
33
Other
Not Applicable
07/24/2008

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Cards

Term
Pulp is found in the ______
Definition
pulp chamber
Term

True or False:

 

The shape of pulp chamber is different in every tooth.

Definition
TRUE
Term
Pulp that is in the crown and contains the pulp horns
Definition
coronal pulp
Term
pulp that is in the roots and is called the "pulp canal"
Definition
radicular pulp
Term
the opening from the pulp at the tooth apex
Definition
apical foramen
Term
pulp develops from the central cells of the ___________
Definition
dental papilla
Term

pulp has an embryological origin similar to dentin becuase both tissues are formed from this:

 

Definition
the dental papilla
Term
in a formed tooth, _______ surrounds the pulp
Definition
dentin
Term

Which of the following is NOT a component of pulp:

 

- loose connective tissue

- several types of cells

- blood vessels and nerves

- organic fibrillar or fibrous matrix with collagen type I

- none of the above

- all of the above

Definition
all of the above
Term

-the most numerous cell type in the pulp

-they produce collagen fibers 

- they form and maintain pulp 

Definition
Fibroblasts
Term
- The cell bodies of ___________ are located in the pulp adjacent to the dentin.
Definition
Odontoblasts
Term
- these cells do not proliferate by mitosis but they produce secondary dentin throughout the life of the tooth.
Definition
odontoblasts
Term

the cells that will produce reparative dentin in response to mild tooth damage

 

(tertiary)

Definition
odontoblasts
Term

in response to severe tooth damage _______ will differentiate into odontoblasts and secrete reparative dentin

 

these cells will decrease in number with age so the ability of pulp to respond to severe injury is weakened

Definition
undifferentiated mesenchymal cells
Term

blood vessels enter and leave the pulp at the________ nad travel through the root canals to the pulp chamber

 

Definition
apical foramen
Term
_____________ drain lymph from the pulp
Definition
lymphatic vessels
Term
Nerves enter the pulp along with the blood vessels at the ______________
Definition
apical foramen
Term

The pulp contains which of the following:

 

- autonomic 

- sympathetic 

- afferent sensory nerves

- all of the above

- A and B only 

Definition
all of the above
Term

fibers that surround some of the blood vessels in pulp

 

function to regulate arteriole diameter and blood flow to capillaries in the pulp

Definition
autonomic sympathetic nerves
Term
afferent sensory nerve fibers are found throughout the _____ and also in the ________ ________
Definition
pulp, dentinal tubules
Term
pain sensations are transmitted from dentin to pulp so both tissues are often considered together as this:
Definition
dentin-pulp complex
Term

-pain fibers in the pulp which are myelinated axons and are associated with sharp, quick, well-localized pain that goes away aftera stimulus is removed

 

-drilling, probing, air drying, heat, cold, can all stimulate these fibers

Definition
delta fibers
Term

- unmyelinated pain fibers in the pulp that are activated by thermal, mechanical or chemical stimuli reaching the deeper parts of the pulp

 

- play a role in the mediation of the dull pain connected with pulpal inflammation

Definition
C fibers
Term

-theory that external stimuli that are applied to the exposed dentin surface will cause the fluid in the dentinal tubule to move

 

this fulid movement stimulates the nerve endings in the dentinal tubules 

 

the nerves continue into the pulp

Definition
hydrodynamic theory
Term
function of pulp in which the dental papilla interacts with the dental lamina to initiate tooth formation
Definition
inductive function of pulp
Term
function of pulp in which the odontoblasts form dentin. following injury, the undifferentiated mesenchymal cells in pulp may differentiate into odontoblasts to form reparative dentin
Definition

formative function of dentin

 

Term
function of pulp in which blood vessels in pulp carry oxygen and nutrients to the dentin. the dentin has no blood supply to support odontoblastic processes
Definition
nutritional function of pulp
Term
function of pulp in which sensory nerves in the pulp respond with pain. the formation of tertiary and/or sclerotic dentin protects pulp from invasion by bacteria
Definition
protective function of pulp
Term
function of pulp which involves the formation of tertiary dentin, and the initiation of inflammation following trauma or infection.
Definition
defensive/reparative function of pulp
Term
The size of the pulp chamber __________ in size with aging becuase of continued deposition of dentin
Definition
decreases
Term
with aging, there is a _______ in the total number of cells. this starts in the 20's and by the 70's there are  ______ as many cells present
Definition
decreases, 1/2
Term

The amount of ___________ increase with aging

 

 

only thing that increases with aginag

Definition
collagen fibers
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