Download MBBS RUHS 1st Year 1st Year 2023 November Physiology Paper I Question Paper

10-11-2023
I-MBBS 01112A1+01112A2
(This question paper consists of 2 pages)

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

First M.B.B.S. (New Scheme) (Main) Examination
November - 2023
PHYSIOLOGY
Paper- I
Time: Three Hours

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

Maximum Marks: 100
Attempt all questions in both sections.
(Use separate answer book for each section)
Section-A
1. Fill in the blanks: 6x1=06

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

a) The coupling ratio for sodium potassium pump is ______
b) Initiation of action potential occur at ______ of neuron.
c) Melatonin is secreted by ______
d) Cells responsible for nourishment of sperm ______
e) ECG rhythm having lowest frequency is ______

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

f) In an isotonic contraction of muscle ______ remain same.
2. Choose the correct option in the following multiple choice questions:
i) Strongest stimulation for ADH secretion is:
a) Hypersomolarity
b) Hyponatremia

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

c) Hypotension
d) Hypovolemia

---

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

ii) Conscious proprioception is carried by:
a) Dorsal column
b) Anterior spinothalamic tract
c) Lateral spinothalamic tract
d) Vestibular tract

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

iii) Binasal Hemianopia occurs when the lesion is present in:
a) Right optic nerve
b) Optic Chiasma
c) Temporal retina
d) Left geniculocalcarine tract

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

iv) Which body muscle can resist fatigue?
a) Skeletal muscle
b) Cardiac muscle
c) Smooth muscle
d) Both a & b

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

3. A 35-year-old fem
ale is taking oral pills to avoid conception. She missed
doses of pills for two successive days. 3 x 5 = 15
a) What precautions should she take in this situation to avoid conception?
b) What are the various contraceptive methods in female?

--- Content provided by​ FirstRanker.com ---

c) Explain mechanism of action of oral contraceptive pills.
4. Write short notes on (Any five): 5x2=10
a) Excitation contraction coupling

---

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

b) Diabetes insipidus
c) Gate control theory of pain
d) REM Sleep
e) Organ of Corti

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

f) Law of projection
5. Explain briefly (Any three): 3x5=15
a) Muscle spindle
b) Circadian rhythm
c) Motor aphasia

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

d) Conditioned reflex
Section-B
6. Name parts of Basal ganglia. Describe causes, features and treatment of
Parkinsonism. 20
7. What will happen and why? (Any five): 5x2=10

--- Content provided by​ FirstRanker.com ---

a) An individual who sleeps with their arm under their head for a long period.
b) To gain sensation
after local rubbing.
c) To ovulation during breastfeeding.
d) To a person's vision when he enters into a cinema hall.

--- Content provided by​ FirstRanker.com ---

e) To color of skin in primary adrenal insufficiency.
f) To eye muscle in myasthenia gravis.
8. Explain briefly (Any four): 4x5=20

---

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

a) Secondary active transport
b) Menstrual Cycle
c) Adrenogenital syndrome
d) Visual pathway

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

e) Goitre
***

---