medical MCQs – Page 352

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

7021. All the following hormones are secreted by adrenal cortex except_______________?
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A. Estriol

B. Corticosterone

C. Aldosterone

D. Cortisol

7022. Trousseaus sign and chovsteks sings are positive in___________?
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A. Hyperparathyroidism

B. Hyperthyroidism

C. Hypothyroidism

D. Hypoparathyroidism

7023. Bone metabolism is controlled by ____________?
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A. Parathormone

B. Calcitonin

C. Vit D & Calcium

D. All of the above

7024. Gastro intestinal hormone in the following is_______________?
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A. Ptyalin

B. Pepsin

C. Cholecystokinin

D. Trypsin

7025. Increase in partial pressure of CO2 leading to release of oxygen to the tissues is________________?
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A. Breur effect

B. Bohr effect

C. Hamburger effect

D. Haldane effect

7026. Trypsin is an activator of all of the following enzymes EXCEPT_______________?
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A. Proelastase

B. Procolipase

C. Pepsinogen

D. Chymotrypsinogen

7027. The receptors for parathyroid hormone are present in______________?
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A. Cartilage

B. Osteoblasts

C. Periosteum

D. Osteoclasts

7028. Muscle of expiration____________?
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A. Internal intercostals

B. Diaphragm

C. External intercostals

D. Rcti Abdominis

7029. In cases of hypercapnia there is_______________?
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A. Increased pH of blood

B. Remains same

C. Decreased pH of blood

D. Increased oxygen concentration in blood

7030. Oxygen as an emergency drug is contraindicated in______________?
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A. Asthma

B. Hyperventilation

C. Anaphylaxis

D. COPD

7031. The decreased phosphate level seen in hyper parathyroidism is due to ________________?
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A. Decreased intestinal phosphate absorption

B. Increased calcium excretion

C. Decreased renal phosphate absorption

D. Increased loss of phosphate in urine

7032. Kussmamuls respiration occurs in response to_______________?
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A. Decrease in pH of blood

B. Increase in pH of blood

C. Carbon monoxide poisoning

D. Obstructive pulmonary disease

7033. Which one of the following is a precursor of both gonadal and adrenocortical hormones_____________?
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A. Corticosterone

B. Cortisol

C. Progesterone

D. Testosterone

7034. Which of the following hormones exerts the least effect on calcium metabolism of bone tissue ?
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A. Thyroid hormone

B. Estrogen

C. Anderogen

D. Nor epinephrine

7035. At what temperature blood is stored______________?
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A. -4C

B. 6C

C. 4C

D. 8C

7036. Upstroke of action potential would lead to________________?
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A. Cell interior becomes more negative

B. Net current in an outward direction

C. Cell interior becomes less negative

D. None of the above

7037. Delta waves of Electroencephalogram have frequency of ______________?
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A. More than 14 cycles per second

B. Between 8 and 13 cycles per second

C. Less than 3.5 cycles per second

D. Between 4 and 7 cycles per second

7038. Major basic protein is an important constituent of which leucocyte_____________?
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A. Lymphocyte

B. Basophil

C. Eosinophil

D. Neutrophil

7039. DOPA and 5 Hydroxytryptophan are clinically important because______________?
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A. They cross Blood Brain Barriers

B. They act as neuromodulators

C. They are metabolites of various neurogentic amines .

D. They are acidic precursors of Brain amines

7040. Which sensation is not lost on the side of lesion in brown sequard syndrome ?
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A. Vibration sense

B. Muscle sense

C. Temperature

D. Touch

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