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NEET MDS Quiz - Practice Test

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Oral Medicine - 3 Questions

1
Oral Medicine

In which organism is echinococcosis most commonly found?
(1) Liver
(2) Lungs
(3) Brain
(4) Heart

📝 Explanation:

Echinococcosis is a parasitic infection caused by the larvae of Echinococcus granulosus. The most common site for these larvae to form cysts is the liver.

2
Oral medicine
Most common complication of Caldwell-Luc"s operation is
1) Bleeding
2) Damage to infraorbital nerve
3) Orbital cellulitis
4) Oroantral fistula

📝 Explanation:

The most common complication of Caldwell-Luc operation is damage to the infraorbital nerve. This nerve runs in the floor of the orbit and can be injured during the surgical approach through the canine fossa, leading to numbness of the upper lip, cheek, and side of nose.

3
Oral Medicine
Which of the following conditions is a type of skeletal dysplasia primarily affecting endochondral ossification, leading to disproportionate short stature with normal torso length?
1) Generalized cortical hyperostosis
2) Craniofacial dystosis
3) Marfan's syndrome
4) Achondroplasia

📝 Explanation:

Achondroplasia is the most common form of short-limb dwarfism and affects endochondral bone formation (bone formation in cartilage), particularly in the long bones. This results in characteristic features like short arms and legs and an average-sized trunk.


Generalized cortical hyperostosis: This condition involves excessive thickening of the outer layer (cortex) of bones, not primarily the growth plates, and does not lead to the disproportionate short stature seen in achondroplasia.

Craniofacial dystosis: This is a condition (such as Crouzon syndrome) characterized by abnormal development of the skull and facial bones (premature fusion of cranial sutures), which can affect the shape of the head and face, but does not primarily cause the disproportionate limb shortening of achondroplasia.

Marfan's syndrome: This is a connective tissue disorder that typically causes individuals to be tall and thin with long limbs and fingers (dolichostenomelia), the opposite of the skeletal features in achondroplasi1) It commonly affects the cardiovascular and ocular systems.

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