Help!!

[aerotech]

---

Members don't see this ad.

Hi,
Does anyone have the answers for the 1997 anatomic sciences section??? Also, if anyone has the answers for the other unreleased exams...would be of great help..thanks.

If not, can you help me answer these questions?

Which of the following characterizes cytoplasmic extensions of an odontoblast?
a. microtubules and occasional mitochondria and vesicles
b. microtubules and lysosomes
c. large # of mitochondria
d. myacin filaments

Adipose tissue is found in the submucosa of the palate in the
a. rugae
b. incisive papilla
c.midline at level of molars
d. lateral areas at level of premolars
e.lateral areas at level of molars

***i know that adipose is found in ANTEROLATERAL zone..but where is the anterolateral zone?

thanks..good luck studying

 

[anjali_45]

Which of the following characterizes cytoplasmic extensions of an odontoblast?
a. microtubules and occasional mitochondria and vesicles
b. microtubules and lysosomes
c. large # of mitochondria
d. myacin filaments
Choice A
Adipose tissue is found in the submucosa of the palate in the
a. rugae
b. incisive papilla
c.midline at level of molars
d. lateral areas at level of premolars
e.lateral areas at level of molars

***i know that adipose is found in ANTEROLATERAL zone..but where is the anterolateral zone?

thanks..good luck studying[/QUOTE]
Choice A rugae

 

[scha2005]

Hi,
Does anyone have the answers for the 1997 anatomic sciences section??? Also, if anyone has the answers for the other unreleased exams...would be of great help..thanks.

If not, can you help me answer these questions?

Which of the following characterizes cytoplasmic extensions of an odontoblast?
a. microtubules and occasional mitochondria and vesicles
b. microtubules and lysosomes
c. large # of mitochondria
d. myacin filaments

Adipose tissue is found in the submucosa of the palate in the
a. rugae
b. incisive papilla
c.midline at level of molars
d. lateral areas at level of premolars
e.lateral areas at level of molars

***i know that adipose is found in ANTEROLATERAL zone..but where is the anterolateral zone?

thanks..good luck studying

i think answer to q 1
is increased no of mitochondria
coz odontoblasts process conatin a rich network of microtubulesand microfilaments , rough endoplasmic reticulum and mitochondria
they show ca-ATPase activity since they form protein collagen 1
well according to me answer is \they have rich source of mitochondria
[like other metabolically active cells---osteoblasts,fibroblasts etc]


i may be wrong ,,,do correct!!!


answer to q2
the answer is rugae area
coz the fats are located in anterolateal zone of palate n
glands in posterolateral zone of palate

 

[anjali_45]

i think it is microtubules vesicles
Mature odontoblasts, which are located around the pulp chamber as a single cell layer, result from the differentiation of mesenchymal cells of the dental papilla during tooth development (Couve 1986, Ten Cate 1994c). Fully differentiated odontoblasts have withdrawn from the cell-cycle and are, thus, postmitotic cells in nature. Functionally active odontoblasts are polarized, having long cell bodies, which contain a well-developed granular endoplasmic reticulum, many mitochondria, a Golgi apparatus, a nucleus and several secretory vesicles (Linde & Goldberg 1993, Torneck 1994). At the distal end of the cell body, close to the predentin, odontoblasts are attached to each other by intercellular junctions, which enable communication between the cells (Ushiyama 1989, Bishop & Yoshida 1992).Peripheral to the intercellular junctions odontoblast cell processes arise and insert into dentinal tubules, crossing through the predentin zone to the mineralized dentin (Linde & Goldberg 1993). The cell processes lack major organelles involved in protein synthesis, but contain an abundance of longitudinally arranged microfilaments and microtubules. In addition, numerous vesicles reflecting both endo- and exocytosis traffic exist in the processes (Torneck 1994).

i think answer to q 1

is increased no of mitochondria
coz odontoblasts process conatin a rich network of microtubulesand microfilaments , rough endoplasmic reticulum and mitochondria
they show ca-ATPase activity since they form protein collagen 1
well according to me answer is \they have rich source of mitochondria
[like other metabolically active cells---osteoblasts,fibroblasts etc]


i may be wrong ,,,do correct!!!


answer to q2
the answer is rugae area
coz the fats are located in anterolateal zone of palate n
glands in posterolateral zone of palate

 

[anjali_45]

i think it is microtubules vesicles microfilaments
Mature odontoblasts, which are located around the pulp chamber as a single cell layer, result from the differentiation of mesenchymal cells of the dental papilla during tooth development (Couve 1986, Ten Cate 1994c). Fully differentiated odontoblasts have withdrawn from the cell-cycle and are, thus, postmitotic cells in nature. Functionally active odontoblasts are polarized, having long cell bodies, which contain a well-developed granular endoplasmic reticulum, many mitochondria, a Golgi apparatus, a nucleus and several secretory vesicles (Linde & Goldberg 1993, Torneck 1994). At the distal end of the cell body, close to the predentin, odontoblasts are attached to each other by intercellular junctions, which enable communication between the cells (Ushiyama 1989, Bishop & Yoshida 1992).Peripheral to the intercellular junctions odontoblast cell processes arise and insert into dentinal tubules, crossing through the predentin zone to the mineralized dentin (Linde & Goldberg 1993). The cell processes lack major organelles involved in protein synthesis, but contain an abundance of longitudinally arranged microfilaments and microtubules. In addition, numerous vesicles reflecting both endo- and exocytosis traffic exist in the processes (Torneck 1994).

 

[scha2005]

i think it is microtubules vesicles microfilaments
Mature odontoblasts, which are located around the pulp chamber as a single cell layer, result from the differentiation of mesenchymal cells of the dental papilla during tooth development (Couve 1986, Ten Cate 1994c). Fully differentiated odontoblasts have withdrawn from the cell-cycle and are, thus, postmitotic cells in nature. Functionally active odontoblasts are polarized, having long cell bodies, which contain a well-developed granular endoplasmic reticulum, many mitochondria, a Golgi apparatus, a nucleus and several secretory vesicles (Linde & Goldberg 1993, Torneck 1994). At the distal end of the cell body, close to the predentin, odontoblasts are attached to each other by intercellular junctions, which enable communication between the cells (Ushiyama 1989, Bishop & Yoshida 1992).Peripheral to the intercellular junctions odontoblast cell processes arise and insert into dentinal tubules, crossing through the predentin zone to the mineralized dentin (Linde & Goldberg 1993). The cell processes lack major organelles involved in protein synthesis, but contain an abundance of longitudinally arranged microfilaments and microtubules. In addition, numerous vesicles reflecting both endo- and exocytosis traffic exist in the processes (Torneck 1994).

thanks anjali

 

[aerotech]

thanks guys....but is it me just having a panic attack (my test is on the 11th) or are the unreleased exams a bit tougher than all the others....aggh!!! i wish i had looked at them sooner....also, for people that have taken part 1 in the past few months, what is the exam comparable to , the newer exams or older or both? i know it's a dumb question...but just curious...thanks.

 

[aerotech]

hi...another question:

Calcification of cartilage matrix is preceded by which of the following?

a. increase in parathormone
b.increase in blood calcium
c. decrease in cellular organic phosphates
d. increase in chondrocyte alkaline phosphatase
e. decrease in blood magnesium

-it's either c or d...but not sure

 

[anjali_45]

hi...another question:

Calcification of cartilage matrix is preceded by which of the following?

a. increase in parathormone
b.increase in blood calcium
c. decrease in cellular organic phosphates
d. increase in chondrocyte alkaline phosphatase
e. decrease in blood magnesium
CHOICE D

 

[aerotech]

Can someone please clarify which parts of TMJ have which cartilage?

thanks