Histo

Question 1

what are the zones of the pulp

Answer 1

Predentin
Odontoblastic layer
Cell-poor zone
Cell-rich zone

Question 2

What is in the pulp proper

Answer 2

core of connective tissue

Question 3

what cells are in the pulp

Answer 3

Fibroblasts; most numerous 
Odontoblasts 
Fybrocytes 
Undifferentiated mesenchymal cells - stem cells 
Histiocytes
Mast cells

Question 4

what is the ground substance of the pulp

Answer 4

sol-gel colloidal system of proteoglycans and water.

Question 5

What fibers are in the pulp

Answer 5

Elastin; only in walls of arterioles
Collagen:
Type
I
III
IV

Question 6

What can the pulp feel

Answer 6

ONLY PAIN

all afferent impulses from the pulp result in the sensation of pain.

Question 7

What are A -delta fibers stimulated by

Answer 7

EPT and cold

Question 8

What are c fiber stimulation associated with

Answer 8

Irreversible pulpitis 
they are considered TRUE NOCICEPTIVE NERVE FIBERS.
resistant to necrosis
stimulated by hot liquids
 Higher threshold due

Question 9

what do efferent nerve fibers do

Answer 9

C-fibers
vasoconstriction
Dentinogenesis

Question 10

What are the different theories

Answer 10

direct stimulation
transductions
hydrodynamic
stimulation

Question 11

Hydrodynamic theory falls under

Answer 11

mechano-stimulation

Question 12

Deep pulpal pain is explained by

Answer 12

Modulation theory
allogenic substances released
stimulation of C-fibers
C-fiber is bathing in hot stuff

Question 13

Is there proprioception in the pulp

Answer 13

NO

Question 14

Where are propiroception nerves found

Answer 14

PDL

Question 15

What happens to venules under pressure

Answer 15

they collapse

Question 16

What shunts the capillary beds

Answer 16

arteriovenous anastomoses

regulation of pulpal blood supply

Question 17

What is the modulation theory

Answer 17

Alegogenic substances due to inflammation leads to the decrease in threshold of c fibers