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Download RUHS MBBS 1st year Physiology Paper I 2021 February Question Paper

Download RUHS (Rajasthan University of Health Sciences) MBBS (Bachelor of Medicine Bachelor of Surgery) First Year (1st Year) Physiology Paper I 2021 February Previous Question Paper || RUHS First Year MBBS Study Materials || RUHS 1st year (first year) Previous Year Question Papers

This post was last modified on 20 November 2022

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RUHS MBBS 2nd Year 2013-2025 Last 12 Years Previous Question Papers || Rajasthan University for Health Sciences


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I-MBBS

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(This paper consists of 2 pages)

First M.B.B.S. (Main) Examination (New Scheme)

February - 2021

PHYSIOLOGY

Paper-I

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Time: Three Hours

Maximum Marks: 100

Attempt all questions in both sections

(Use separate answer book for each section)

Section-A

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  1. Fill in the blanks:

    6 x 1 = 06

    1. In __________, the muscle weakness is caused by an autoimmune attack against one of the Ca+2 channels in the nerve endings at the neuromuscular junction.

    2. The deep reflexes become weak and pendular in __________ lesion.

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    3. High circulating levels of progesterone and estrogens in pregnancy prevent __________ bleeding and cause amenorrhea.

    4. Cushing's disease is due to excessive levels of __________.

      5. --- Content provided by‍ FirstRanker.com ---

    5. Visual receptors are not found at __________ part of the eye.

    6. Glucose enters in the intestine and renal tubules by __________ transport.

    2. --- Content provided by‍ FirstRanker.com ---

  2. Choose the correct option in the following multiple choice questions:

    4 x 1 = 04

    1. Flocculonodular lobe is directly connected to-

      1. Red nucleus

        2. --- Content provided by‌ FirstRanker.com ---

      2. Vestibular nucleus

      3. Dentate nucleus

      4. Inferior olivary nucleus

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    2. Capacitation of sperm takes place in-

      1. Seminiferous tubules

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      2. Epididymis

      3. Vas deferens

      4. Uterus

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    3. Which of the following best describes a physiological difference between the contraction of smooth muscle compared with the contraction of cardiac muscle and skeletal muscle?

      1. Ca+2 independent

        2. --- Content provided by‍ FirstRanker.com ---

      2. Does not require an action potential

      3. Requires more energy

      4. Shorter in duration

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    4. Neurotransmitter released at sympathetic preganglionic fibers-

      1. Epinephrine

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b) Nor epinephrine

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c) Acetyl choline

d) Dopamine

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  • A 45-year-old man visits a physician because of difficulties performing simple tasks that involve repetitive movements. The physician asks the patient to turn one hand upward and downward at a rapid pace. The man quickly loses all perception of the instantaneous position of the hand, which results in a series of delayed attempts and jumbled movements. Use this information to answer the following questions-

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    1. This patient's neurological signs are most likely related to lesion within which part of the brain? Name the probable condition with its pathophysiology.

    2. What are the connections and functions of this part of the brain?

    3. What are the other characteristics of disease associated with dysfunction of this part.

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    15

  • Write short notes on (Any five):

    5 x 2 = 10

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    1. Dark adaptation

    2. Decerebrate rigidity

    3. Thalamic syndrome

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    4. Sarcotubular system

    5. Impedance matching

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    6. Passive transport

  • Explain briefly (Any three):

    3 x 5 = 15

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    1. Endogenous pain relief (Analgesia) system

    2. Female contraceptives

    3. Stretch reflex

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    4. Composition and functions of cerebrospinal fluid

    • Section-B

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  • Discuss the common causes of infertility in a couple and role of in-vitro fertilization (IVF) in managing a case of infertility. Describe the following changes during different phases of menstrual cycle along with a suitable diagram-

    1. Hormonal

    2. Uterine

      3. --- Content provided by⁠ FirstRanker.com ---

    3. Ovarian

    4. Vaginal

    20

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  • What will happen and why (Any five):

    5 x 2 = 10

    1. IF circulating levels of free Thyroxine & Triiodothyronine decrease in infants.

      2. --- Content provided by‍ FirstRanker.com ---

    2. If LH surge in an ovulatory cycle is absent.

    3. If vascular blockage of the thalamus occurs.

    4. If Ciliary muscles get temporarily paralysed.

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    5. To pupil in oculomotor nerve paralysis.

    6. To menstrual cycle in a breast-feeding lady.

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  • Explain briefly (Any four):

    4 x 5=20

    1. Suckling reflex.

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    2. Mechanism of accomodation of eye.

    3. Functions of Insulin.

    4. Differentiate between action potential and receptor potential.

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    5. Tests of pregnancy.

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    2



    This download link is referred from the post: RUHS MBBS 2nd Year 2013-2025 Last 12 Years Previous Question Papers || Rajasthan University for Health Sciences

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    This post was last modified on 20 November 2022