Medical MCQs

5099 MCQs  (Page 249 of 510)

Collagen molecule exhibits all of the following features except_____________?
A. Triple pleated sheath
B. Mostly contains glycine residues
C. Exhibit cross striations at 64 μm
D. Intracellular in nature
The vascular supply of the periodontal ligament is______________?
A. Greatest in the middle-third of a single rotted tooth
B. Greatest in the middle-third of a multirooted tooth
C. A net like plexus that runs closer to the cementum than to the bone
D. A net like plexus that runs closer to the bone than to the cementum
Collagen biosynthesis occurs inside the______________?
A. Chondroblasts
B. Odontoblasts
C. Osteoblasts
D. Fibroblasts
Principal fibres of periodontal ligament are attached to_____________?
A. Alveolar bone proper
B. Bundle bone
C. Lamellar bone
D. Cortical bone
The calcified mass found in the PDL are_____________?
A. Cementicles
B. Osteoblasts
C. Cementoclasts
D. Osteoclasts
Sharpey’s fibres are present in_______________?
A. Bone
B. Periosteum
C. Periodontal ligament
D. All of the above
True about osteoclasts_____________?
A. Monocytes are precursor cells of osteoclasts
B. The plasma membrane of osteoclasts adjacent to bone that is being resorbed is known as striated or ruffled border
C. Contain lysosomes with acid phosphates
D. All of the above are true