Angular cheilosis is frequently associated with the deficiency of:

 # Angular cheilosis is frequently associated with the deficiency of:

A. Thiamine

B. Riboflavin

C. Niacin

D. Folic acid

The correct answer is B. Riboflavin.

Magenta tongue (glossitis), fissures at corners of mouth (cheilosis), are common manifestations of  vitamin B2 deficiency. 

CLICK HERE FOR MORE MCQs

Lazarine leprosy is a variant of:

 # Lazarine leprosy is a variant of:

A. Lepromatous leprosy

B. Tuberculoid leprosy

C. Intermediate leprosy

D. Dimorphic leprosy

The correct answer is A. Lepromatous leprosy.

Lazarine leprosy: This an unusual type of the disease characterized by ulceration and gangrene. The early lesions are bullae, which soon rupture and become gangrenous. It includes achromic and hypochromic spots of the lepra called lazarine (systematized nervous lepra with leprous erythema, pemphigoid and escharotic), and finally of mixed lepra. 

CLICK HERE FOR MORE MCQs

Opsonins are:

 # Opsonins are:

A. C3a

B. IgM

C. Carbohydrate binding proteins

D. Selectins

The correct answer is C. Carbohydrate binding proteins.

Opsonins 

• Chemicals causing opsonisation 

• They are specific carbohydrate binding proteins 

Examples of opsonins 

• C3b 

• Fc fragment of antibody or IgG 

• Some serum proteins (like fibrinogen, mannose binding lectin and C reactive protein) 

CLICK HERE FOR MORE MCQs

Origin and insertion of which of the following muscles can be seen clearly from outside?

 # Origin and insertion of which of the following muscles can be seen clearly from outside?

A. Masseter

B. Platysma

C. Sternocleidomastoid

D. All of the above

The correct answer is C. Sternocleidomastoid.

Sternocleidomastoid forms the most important landmark on the side of the neck. It becomes prominent

when the face is turned to the opposite side and is seen as a raised ridge extending obliquely from the sternum to the mastoid process. It is the key muscle of the neck which extends obliquely across the side of the neck, dividing it into posterior and anterior triangles.

CLICK HERE FOR MORE MCQs