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Medical MCQs with Explanations

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191MedicalMedium

The alveolar ventilation in an individual with tidal volume: 600 ml, dead space 150 ml and respiratory rate of 15/ minute is________?

A4.0 lit /Min

B2.5 lit/Min

C6.75 Lit/Min

D9 Lit/Min

Correct answer

C. 6.75 Lit/Min

Explanation

The correct answer is 6.75 Lit/Min.

192MedicalMedium

The normal range of serum osmolality (in mosm/L) is________?

A200 to 250

B350 to 375

C280 to 295

D300 to 320

Correct answer

C. 280 to 295

Explanation

The correct answer is 280 to 295.

193MedicalMedium

Major basic protein is an important constituent of which leucocyte________?

ALymphocyte

BNeutrophil

CEosinophil

DBasophil

Correct answer

C. Eosinophil

Explanation

The correct answer is Eosinophil.

194MedicalMedium

Trousseau’s sign and chovstek’s sings are positive in________?

AHypothyroidism

BHyperparathyroidism

CHyperthyroidism

DHypoparathyroidism

Correct answer

D. Hypoparathyroidism

Explanation

The correct answer is Hypoparathyroidism.

195MedicalMedium

Pain originate in the pulp due to________?

Afree nerve ending in cell rich zone

BKrause bulb at the center of the pulp

Cfree nerve ending at sub odontoblastic layer

DMeisseners corpuscles at cell rich zone

Correct answer

C. free nerve ending at sub odontoblastic layer

Explanation

The correct answer is free nerve ending at sub odontoblastic layer.

196MedicalMedium

True about osteoclasts________?

AContain lysosomes with acid phosphates

BMonocytes are precursor cells of osteoclasts

CAll of the above are true

DThe plasma membrane of osteoclasts adjacent to bone that is being resorbed is known as striated or ruffled border

Correct answer

C. All of the above are true

Explanation

The correct answer is All of the above are true.

197MedicalMedium

The hyperosmolarity of the renal medulla is due to increased content of________?

AGlucose

BK+

CNa+

DNH4+

Correct answer

C. Na+

Explanation

The correct answer is Na+.

198MedicalMedium

That is not true for facial artery?

AMain source of blood supply to palatine tonsil

BConveys post ganglionic sympathetic fibers to submandibulr gland

CSupplies branches to upper and lower lips

DIs a branch of internal carotid artery

Correct answer

D. Is a branch of internal carotid artery

Explanation

The correct answer is Is a branch of internal carotid artery.

199MedicalMedium

Metalloprotienases are used in which stage of the amelogenesis________?

AProtective

BOrganising

CDesmolytic

DFormative/ Secretory

Correct answer

D. Formative/ Secretory

Explanation

The correct answer is Formative/ Secretory.

200MedicalMedium

Compared to the inter tubular dentin, peritubular dentin is characterized by which of the following?

Agreater content of inorganic salts

BGreater content of large collagen fibres

CGreater stainability

DLasser content of inorganic salts

Correct answer

A. greater content of inorganic salts

Explanation

The correct answer is greater content of inorganic salts.

Pain originate in the pulp due to________?

Afree nerve ending in cell rich zone

BKrause bulb at the center of the pulp

Cfree nerve ending at sub odontoblastic layer

DMeisseners corpuscles at cell rich zone

Correct answer

C. free nerve ending at sub odontoblastic layer

Explanation

The correct answer is free nerve ending at sub odontoblastic layer.

True about osteoclasts________?

AContain lysosomes with acid phosphates

BMonocytes are precursor cells of osteoclasts

CAll of the above are true

DThe plasma membrane of osteoclasts adjacent to bone that is being resorbed is known as striated or ruffled border

Correct answer

C. All of the above are true

Explanation

The correct answer is All of the above are true.

That is not true for facial artery?

AMain source of blood supply to palatine tonsil

BConveys post ganglionic sympathetic fibers to submandibulr gland

CSupplies branches to upper and lower lips

DIs a branch of internal carotid artery

Correct answer

D. Is a branch of internal carotid artery

Explanation

The correct answer is Is a branch of internal carotid artery.