Download NTRUHS 1st Year MBBS 2023 April Physiology Paper II Question Paper

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CBME

DR. YSR UNIVERSITY OF HEALTH SCIENCES: AP: VIJAYAWADA-520 008

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MBBS DEGREE EXAMINATION – APRIL, 2023

FIRST M.B.B.S. EXAMINATION

PHYSIOLOGY - PAPER-II (SET-D)

(Multiple Choice Questions)

Time: 20 Minutes Max Marks: 20

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Note: Answer all questions

SECTION - I (MCQs- 20 MARKS) 1x20=20

1. Multi unit smooth muscle is found in
1. Heart
2. GI tract

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3. Large blood vessel
4. Urinary bladder
2. Addison's disease is due to
1. Hyper-adrenalism
2. Hypo-adrenalism

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3. Increased secretion of melanin
4. Increased Adrenal Androgens
3. The transport of proteins and polypeptides synthesized in soma of nerve cell to the axonal ending is called as
1. Retrograde transport
2. Axoplasmic flow

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3. Transcytosis
4. Exocytosis
4. Which of the following muscle cannot be tetanized
1. Skeletal muscle
2. Smooth muscle

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3. Cardiac muscle
4. All the above
5. Which of the following hormones acts on its target tissues by a steroid hormone mechanism of action
1. Thyroid hormone
2. Parathyroid hormone (PTH)

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3. Antidiuretic hormone (ADH) on the collecting duct
4. Glucagon
6. Inhibin inhibits
1. FSH
2. TSH

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3. ACTH
4. TRH
7. Factors that stimulate growth hormone is
1. Increased blood glucose
2. Exogenous growth hormone

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3. Somatomedin
4. Testosterone
8. The growth hormone receptor
1. Must be internalized to exert its effect
2. Requires dimerization to exert its effect

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3. Resembles IGF-I receptor
4. Resembles ACTH receptor
9. Regression of tissues as in uterine regression after pregnancy is a function of
1. Nucleus
2. Lysosomes

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3. Secretory vesicles
4. Peroxisomes
10. The intrafusal fibers of muscle spindle is supplied by
1. Alpha motor neuron
2. Dorsal root Neuron

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3. Gamma motor neuron
4. Renshaw cell
11. Blood testis barrier is formed by
1. Leydig cell
2. Sertoli cells

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3. Epididymis
4. Vas deferens
12. The property of specificity of nerve fibers for transmitting only one modality of sensation is called
1. Law of projection
2. Spatial summation

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3. Labelled line principle
4. Weber-Fechner law
13. Sensation carried by the lateral spinothalamic tract is
1. Crude touch and fine touch
2. Tactile localization and discrimination

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3. Vibration and proprioception
4. Pain and temperature
14. Vagal stimulation causes increase in
1. Heart rate
2. R-R interval in ECG

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3. Cardiac output
4. Force of contractions
15. The increase in heart rate following an increase in atrial pressure is called as
1. Bainbridge reflex
2. Volume reflex

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3. Cushing's Reflex
4. Baroreceptor reflex
16. The nucleus responsible for maintaining circadian rhythm is
1. Subthalamic nucleus
2. Suprachiasmatic nucleus

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3. Raphe nucleus
4. Lateral reticular nucleus
17. Refractive index of cornea is
1. 1.39
2. 1.33

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3. 1.42
4. 1.37
18. The Refractive error which occurs in elderly people is
1. Myopia
2. Astigmatism

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3. Hypermetropia
4. Presbyopia
19. Parkinson's disease is characterized by the following triad
1. Hypokinesia, rigidity, tremors
2. Rigidity, tremors, nystagmus

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3. Placidity, intentional tremors, ataxia
4. Rigidity, hypokinesia, dysarthria
20. Lesion in optic chiasma causes
1. Binasal hemianopia
2. Bitemporal hemianopia

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3. Contralateral homonymous hemianopia
4. Ipsilateral complete blindness