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Medical MCQs with Explanations

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531MedicalMedium

When viewed occlusally, a primary mandibular second molar closely resembles which of the following mandibular teeth?

APermanent first molar

BPermanent second molar

CPrimary first molar

DSecond premolar

Correct answer

A. Permanent first molar

Explanation

The correct answer is Permanent first molar.

532MedicalMedium

Osteomyelitis begins as an inflammation of:________?

APeriosteum

BMedullary bone

Cperiosteum and inner cortex

DCortical bone

Correct answer

B. Medullary bone

Explanation

The correct answer is Medullary bone.

533MedicalMedium

Erythropoietin is produced in the________?

ASpleen

BBone marrow

CLiver

DKidney

Correct answer

D. Kidney

Explanation

The correct answer is Kidney.

534MedicalMedium

Parotid fascia extends anteriorly as ________?

AStylomandibular ligament

BMasseteric fascia

CDeep cervical fascia

DFascia lata

Correct answer

B. Masseteric fascia

Explanation

The correct answer is Masseteric fascia.

535MedicalMedium

Facial vein communicates with the cavernous sinus through________?

ASuperior ophtalmic vein and pterygoid venous plexus

BRetromolar vein and internal jugular vein

CExternal jugular vein and internal jugular vein

DInternal jugular vein and retromandibular vein

Correct answer

A. Superior ophtalmic vein and pterygoid venous plexus

Explanation

The correct answer is Superior ophtalmic vein and pterygoid venous plexus.

536MedicalMedium

A child is below the third percentile for height. Growth velocity is normal, but chronologic age is more than skeletal age. The most likely diagnosis is________?

APrimordial dwarfism

BGenetic short stature

CHypopituitarism

DConstitutional delay in growth

Correct answer

D. Constitutional delay in growth

Explanation

The correct answer is Constitutional delay in growth.

537MedicalMedium

Loss of capsule in bacteria is generally associated with________?

Aincrease in invasiveness

BLoss of infectivity

CInability to spread through tissue

DDecease in virulence

Correct answer

D. Decease in virulence

Explanation

The correct answer is Decease in virulence.

538MedicalMedium

Which one of the following impression materials is elastic, sets by a chemical reaction and is catalyzed by chloroplatinic acid________?

APoly vinyl siloxane

BPolyether

CCondensation silicone

DPolysulfide

Correct answer

A. Poly vinyl siloxane

Explanation

The correct answer is Poly vinyl siloxane.

539MedicalMedium

Complications of Vincents angina is________?

ANoma

BCellulites

CSystemic candidiasis

DActinomycosis

Correct answer

A. Noma

Explanation

The correct answer is Noma.

540MedicalMedium

The maxillary vein accompanies________?

AFirst part of maxillary artery

BThird part of maxillary artery

CNone of the above

DSecond part of maxillary artery

Correct answer

A. First part of maxillary artery

Explanation

The correct answer is First part of maxillary artery.

Facial vein communicates with the cavernous sinus through________?

ASuperior ophtalmic vein and pterygoid venous plexus

BRetromolar vein and internal jugular vein

CExternal jugular vein and internal jugular vein

DInternal jugular vein and retromandibular vein

Correct answer

A. Superior ophtalmic vein and pterygoid venous plexus

Explanation

The correct answer is Superior ophtalmic vein and pterygoid venous plexus.