9901. True about myoepithelial cell______________?
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A. All of the above

B. The cell expel secretions by contraction

C. Also known as basket cell

D. Structure is similar to smooth muscle and contains actin & myosin

9902. Role of meckels cartilage in development of mandible__________________?
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A. It does not have any role

B. It has a minor role

C. It has a major role

D. None of the above

9904. Serous demilunes are seen in______________?
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A. Salivary glands

B. Gastric glands

C. Pancreas

D. Liver

9905. Which of the following enzymes are involved in bone formation________________?
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A. Acid phosphatase and catalase

B. Alkaline phosphatase and urease

C. Alkaline phosphatase and phosphorylase

D. Catalase and phosphorylase

9906. Which of the following is correct ?
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A. All of the above

B. Sublingual gland bartholins duct mixed and predominantly mucous

C. Parotid stensons duct pure serous

D. Submandibular Whartons duct mixed and predominantly serous

9907. A purine which is found in saliva is_______________?
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A. Hypolithinium

B. Adenosine

C. Thymine

D. Uric acid

9908. Mucin in mucous cells usually demonstrated by______________?
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A. PAP stain

B. H & E stain

C. Mallory stain

D. Mucicarmine stain
9909. Which of the following is correct?
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A. All of the above

B. The small nerve fibres may or may not be myelinated and are concerned with discrement of pain

C. Fibronectin helps in attachment of fibroblasts to collagen

D. Cementicles are found in periodontal ligament of order individuals

E. The large nerve fibres are myelinated and are concerned with discerment of touch

9910. Which of the following is wrong?
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A. The architecture of type I spongiosa is seen in mandible

B. Bundle bone contains a lesser amounts of calcium salts than other types of bony tissue

C. Type II spongiosa is seen in maxilla

D. Condylar process & angle in mandible, and tuberosity in maxilla contain hemopoietic cellular marrow

9911. Fibres which continue from bone to ligament are_______________?
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A. Rays fibres

B. Sharpeys fibres

C. Tomes fibres

D. All of the above

9912. The type of epithelium lining maxillary sinus is_______________?
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A. Pseudo stratified columnar and cilliated

B. Simple squamous

C. Stratified squamous

D. Simple columnar

9913. The function of myoepithelial cells may be______________?
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A. Provide signals to the acinar secretary cells for structure organization

B. Support for the end piece during active secretion of saliva

C. All of the above

D. Initiating contraction

9916. Myoepithelial cells are present in________________?
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A. Serous cells

B. Intercalated & terminal duct

C. Striated duct

D. Mucous cells

9917. Which of the following is true___________?
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A. All of the above

B. Majority of nerve that enter the pulp are non myelinated and are sympathetic in nature

C. Pulpal pressure is highest among body tissues

D. Plexus of Rashkow or parietal layers of nerves is formed by network of peripheral axons located adjacent to cell rich zone

9918. The marrow found in the mandible is____________?
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A. All fibrous marrow

B. All fatty marrow

C. All red marrow

D. A combination of fatty and fibrous marrow
9919. The articular cartilage is characterized by all of the following features except_____________?
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A. It is avascular

B. It is devoid of perichondrium

C. It has a rich nerve supply

D. It lacks the capacity to regenerate

9920. Haversion systems (osteons) are found primarily in the_________________?
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A. Spongy bone

B. Endosteum

C. Alveolar bone proper

D. Periosteum

9921. Pure mucous glands are_____________?
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A. Vonebners glands

B. Labial and buccal glands

C. Glosso palatine & palatine glands

D. Lingual glands

9922. Mature bone is otherwise called as______________?
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A. Irregular bone

B. Lamellar bone

C. Resorbing bone

D. woven bone

9923. Mandible develops by______________?
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A. Endochondral ossification only

B. Membranous ossification only

C. Both of the above

D. None of the above

9925. Basic metabolic unit of bone is_______________?
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A. Osteoclast

B. Osteocyte

C. Osteoblast

D. Osteon
9928. Which of the following is not true___________?
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A. Alveolar bone proper surrounds the root and gives attachment to fibres of periodontal ligament

B. The cortical plates are thinner in maxilla than in mandible

C. They are thickest in anterior portion of jaw

D. supporting alveolar bone surrounds the alveolar bone proper and supports the socket

9929. Which of the following is true?
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A. All of the above

B. CAMP or cyclic adenosine monophosphate levels are increased on pressure side of bone and this results in bone resorption

C. Cutting cone or resorption tunnel is the area of resorption seen in alveolar bone

D. Immature born / embryonic bone seen during fracture healing contains less calcified material and greater number of large osteocytes

9930. The process of recesses formation in maxillary sinus is most frequently seen with________________?
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A. Zygomatic process

B. Palatine process

C. Frontal process

D. Alveolar process
9931. In multirooted teeth, formation of multiple roots is due to presence of_____________?
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A. Epithelial diaphragm

B. Toot bud division or bell stage

C. None of the above

D. Cell rests of Malassez

9932. Root lengthening is contributed by____________?
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A. All of the above

B. Intermediate cementum

C. Acellular cementum

D. Cellular cementum
9933. The dental pulp is derived form____________?
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A. Stellate reticulum

B. Dental sac

C. Odontoblasts

D. Dental papilla
9934. Lip furrow band is______________?
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A. Basal lamina

B. Successional lamina

C. Dental lamina

D. Vestibular lamina
9935. True about direction of enamel rods______________?
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A. In cervical region of permanent teeth, they deviate in apical direction

B. All of the above

C. They are almost vertical near the incisal edge (or) cusp tip areas

D. In the cervical third of deciduous crowns they are almost horizontal in direction

E. They originate at right angle to dentin surface

9938. Atypical or osteodentin is formed due to disturbance during____________?
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A. Apposition

B. Initiation

C. Morphodifferentiation

D. Histodifferentiation
9939. Sharpeys fibres are present in_______________?
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A. Periosteum

B. Bone

C. All of the above

D. Periodontal ligament

9942. Compared to the inter tubular dentin, peritubular dentin is characterized by which of the following ?
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A. Greater stainability

B. Lasser content of inorganic salts

C. Greater content of large collagen fibres

D. greater content of inorganic salts
9944. Accentuated incremental lines in dentin due to disturbances in matrix and mineralization process is_____________?
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A. Incremental lines of retzius

B. None of the above

C. Incremental lines of vonebner

D. Contour lines of owen
9945. Ameloblasts is______________?
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A. A tissue from which tooth erupts

B. A tumour of the jaw

C. A cell from which tooth enamel is formed:

D. Pertaining to dentin

9946. In considering the process of eruption, the pre-functional eruptive stage of a tooth begins when the_____________?
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A. Dental lamina begins forming

B. Cap stage begins

C. Bud stage begins

D. Bell stage begins

9947. Stellate reticulum is seen in______________?
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A. Enamel organ

B. Dental lamina

C. All of the above

D. Hertwigs root sheath

9948. The periodontal ligament is approximately_____________?
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A. 0.75 mm in thickness

B. mm in thickness

C. 0.25 mm in thickness

D. 0.5 mm in thickness

9949. The formation of the dental lamina is initiated by______________?
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A. Forebrain

B. Odontoblasts

C. Neural crest cells

D. Rathkes pouch

9950. Thin leaf like structures that extend from enamel surface in to DEJ are____________?
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A. Enamel spindles

B. Enamel tufts

C. Enamel lamella

D. Perikymata