Download RGUHS (Rajiv Gandhi University of Health Sciences) MBBS (Bachelor of Medicine and Bachelor of Surgery) 2023 February 1023 Physiology Paper II Rs 4 Previous Question Paper
Rajiv Gandhi University of Health Sciences, Karnataka
MBBS Phase ? I (CBME) Degree Examination - 11-Feb-2023
Time: Three Hours
Max. Marks: 100 Marks
PHYSIOLOGY ? PAPER - II (RS-4)
Q.P. CODE: 1023
(QP contains two pages)
Your answers should be specific to the questions asked
Draw neat, labeled diagrams wherever necessary
LONG ESSAYS
2 x 10 = 20 Marks
1.
Trace the visual pathway. Explain the lesion that occur at different levels
2.
Describe the structure of neuromuscular junction and explain the transmission across it.
Add a note on neuromuscular blockers
SHORT ESSAYS
8 x 5 = 40 Marks
3.
Explain the steps in synthesis and regulation of thyroid hormone synthesis
4.
Describe the mechanisms of heat loss and heat gain in the body
5.
Describe the stages and regulation of spermatogenesis
6.
A middle aged man reported to medical out-patient department with complaints of trembling
of hands while attempting to do some work. On examination he was found to have impaired
co-ordination and ataxia
a) Describe the signs and symptoms of cerebellar disease
b) Explain the tests used to assess cerebellar functions
7.
Explain the properties of sensory receptors
8.
Describe the actions of insulin
9.
Explain the action of glucocorticoids
10. Illustrate the pain pathway. Explain the gate control theory of pain
SHORT ANSWERS
10 x 3 = 30 Marks
11. Explain the physiological significance of muscle spindle
12. Explain the clinical features that occur below the level of lesion in Brown ? Sequard syndrome
13. List the functions of luteinizing hormones
14. What is Papez circuit?
15. What is the basis of sex differentiation in a fetus?
16. Explain fetoplacental unit
17. Explain summation in synapse
18. List the functions of blood brain barrier
19. Differentiate between pituitary and thyroid dwarfs
20. Justify the use of L-dopa in Parkinsonism
Page 1 of 2
QP CODE : 1023
Rajiv Gandhi University of Health Sciences, Karnataka
Multiple Choice Questions
10 x 1 = 10 Marks
21 i) Endolymph is secreted by
A. Reissner's membrane
B. Tectorial membrane
C. Stria vascularis
D. Outer hair cells
21 ii
) Heteronymous hemianopia is seen in lesion of
A. Optic chiasma
B. Lateral geniculate body
C. Optic tract
D. Optic nerve
21 ii
i) Spinocerebellar tract carries the sensation of
A. Conscious Proprioception
B. Crude touch
C. Unconscious Proprioception
D. Pain
21 iv)
Site of action of aldosterone on the renal tubule
A. Proximal convoluted tubule
B. Loop of Henle
C. Early distal convoluted tubule
D. Collecting duct
21 v)
The phase of menstrual cycle occurring after ovulation is
A. Proliferative phase
B. Secretory phase
C. Bleeding phase
D. Midluteal phase
22 i) Chronaxie is increased when
A. Excitability of tissue is low
B. Threshold of excitation is decreased
C. Local excitatory state is present
D. Membrane potential is near firing level
22
ii) In inverse stretch reflex
A. Golgi tendon organ is receptor
B. Muscle length is detected
C. Single synapse present
D. Excitation of same alpha motor neuron is seen
22 ii
i) After hyperpolarisation in action potential is due to
A. Opening of sodium channels
B. Opening of potassium channels
C. Slow closure of sodium channels
D. Slow closure of potassium channels
22 iv)
The only situation when the neuron is directly exposed to the external environment is in
A. Taste buds
B. Skin
C. Cornea
D. Olfactory mucous membrane
22 v)
The action of cholecalciferol on intestinal transport of calcium is mediated through
A. Troponin
B. Calbindin
C. Calmodulin
D. Cyclic AMP
E.
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This post was last modified on 02 December 2024