PART I

MI CROB10 LOGY-PATH0 LOGY

-1.   Dermatotropic viral diseases include

l.2.3.4.5.

smallpox, chickenpox and measles.hepatitis, mumps and yellow fever.impetigo, scarlet fever and scabies.rabies, herpes and encephalomyelitis.influenza, common cold and primaryatypical pneumonia.

2.   The most common source of a pulmonaryembolism is   .

l.2.3.4.5.

hemorrhoids.the mitral valve.

the portal vein.the deep leg vein.a long bone fracture.

3. The ability of certain oral microorganisms tofunction as etiologic agents pf..dental cariesappears to be correlated with the cap.acity of these organisms to produce   .

1. proteolytic enzymes capable of hydrolyzing salivaryproteins.capsules which inhibit the activity of phagocytic cells present in saliva.carbonic anhydrase, an enzyme activein decreasing the CO2content of saliva.an extracellular polysaccharidedextran-like substance involvedin the

formation of dental plaque.

2.

3.

4.

4.   An oral disease characterized by whitepatches on the buccal mucous membraneswhich consist largely of pseudomycelia withminimal erosion of the membranes is caused by

1.2.3.4.5.

Candida albicans.

Treponema pallidum. Entamoeba histolytica.Sporothrichum schenckii.

Corynebacterium diph theriae.

5.   Vitamin C deficiency will

,.2.3.4.

impair collagen formation.impede re-epitheliaJization.prevent proliferation of fibroblasts.delay resolution of pre-existing exudates.

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6.

7.

8.

9.

10.

11.

In children, the bones become bowed inrickets because of failure of 

l.2.3.4.

osteoblasts to develop.osteoid tissue to calcify.osteoid tissue to form.

cartilage matrix to form.

The spreading factor produced by certainstreptococci is

l.2.3.4.5.

antigen.toxemia.

coagulase..

fibrinolysin.hyaluronidase.

Systemic lupus erythematosus, rheumatoidarthritis, idiopathic thrombocytopenicpurpura and thyroiditis are examples of 

1.2.3.4.

Arthus reaction.autoimmune diseases.

anaphylactic reactions.immediate hypersensitivity reactions.

Hypothyroidism in children results in

1.2.3.4.5.

myxedema.gigantism.cretinism.

acromegaly.diabetes insipidus.

True bacteria multiply by

1.2.3.4.5.

budding.sexual fusion.

binaryfission.   .

fragmentation of mycelia.formation of sexual spores.

The genus of fungi most frequently recoveredfrom healthy mucous membrane surfaces is

1.2.3.

.   4.5.

Candida.

 Aspergillus. Histoplasma. Blastomyces.Coccidioides.