nbde 1 q's ,pls answer

[sen555]

pls answer these questions,im taking the test on 25th


Each of the following is necessary for viral antigen recognition by CD4 T-Helper cells EXCEPT one which one is this EXCEPTION?

• Viral replication in host cells
• Cleavage of viral proteins into small peptides
• Transport of viral peptides to a cell surface by MHC class II molecules.
• Binding of the T cells TCR to a MHC class II bound viral peptide
• Internalization of the virus (or viral protein) by an antigen presenting cell.

The microflora of the healthy gingival sulcus is predominantly

• Spriochetes and yeasts
• gram positive facultative rods and spirochetes
• Gram positive facultative cocci and filamentous bacteria
• Gram negative anaerobic rods and fusobacteria
• Gram negative anaerobic cocci and gram positive facultative cocci

Which of the following represents the most numerous leukocytes found in gingival crevicular fluid?

• Monocytes
• Neutrophils
• Plasma cells
• B-lymphocytes
• T- lymphocytes

Which of the following muscles has an important influence on the function of the mandible although it is not generally considered a muscle of mastication?

• Omohyoid
• Geniohyid
• Mylohyoid
• Digastric
• Sternocleidomastoid

Each of the following factors affects heights of cusps and depths of fossae on restorations EXCEPT one which one is this EXCEPTION?

• Curve of spee
• Intercondylar distance
• Vertical overlap of anterior teeth
• Horizontal overlap of anterior teeth
• Steepness of the articular eminence

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[pol37]

• Viral replication in host cells (that has only to do with the replication of the virus itself intracellulary and has nothing to do with antigen recognition)
• Gram negative anaerobic cocci and gram positive facultative cocci
• Neutrophils - most everywhere (why not here?)
• Digastric (the hyoid muscles are assisting muscles but since u have only one choice to pick its the digastric - ant. belly is especially involved in assisting)
• Intercondylar distance (I don't see a connection to the height of the cusps)

correct me if I wrong or u disagree