Download MBBS 1st Year (First Year) 2024 August AUGUST 2024 Cbme Paper II Physiology MCQs Previous Question Paper || MGR University | MBBS Latest 2024 Previous Year Question MCQs Papers
[MBBS 0824] AUGUST 2024 Sub. Code : 6054
M.B.B.S. DEGREE EXAMINATION
(For the candidates admitted from the Academic Year 2020 -2021 Onwards)
FIRST YEAR ? (CBME)
PAPER II ? PHYSIOLOGY
Q.P. Code: 526054
Time: 20 Minutes Maximum : 20 Marks
Answer All Questions
Choose one correct answer in the box provided in the Answer Script.
No overwriting should be done. Choice should be given in Capital Letters.
III. Multiple Choice Questions: (20 x 1 = 20)
1. Which of the following formulae gives mean arterial pressure?
A) Systolic pressure ? Diastolic pressure
B) Diastolic pressure + (Pulse pressure/3)
C) (Systolic pressure + Diastolic pressure) / 2
D) Diastolic pressure + Pulse pressure
2. Starling's law gives the relationship between
A) Stroke volume and End-diastolic volume
B) Stroke volume and End-systolic volume
C) End-systolic volume and Blood pressure
D) End-diastolic volume and Blood pressure
3. Which of the following statements is TRUE about total peripheral resistance?
A) It is high in pregnant women because of placenta
B) It is due to large arteries
C) It is low in septic shock
D) Baroreceptor stimulation increases it
4. Which of the following phenomena is responsible for the ST segment of ECG?
A) Spread of atrial depolarization
B) Plateau phase of ventricular action potentials
C) Spread of ventricular depolarization
D) Atrioventricular nodal delay
5. The Windkessel effect of aorta leads to
A) Lower pulse pressure B) Higher systolic pressure
C) Lower diastolic pressure D) Higher mean arterial pressure
6. Sub-atmospheric intrapleural pressure is due to
A) Negative intra-alveolar pressure
B) Uniform distribution of surfactant over alveoli
C) Presence of cartilage in upper airways
D) Opposite recoil of lung and chest wall
7. Alveolar ventilation per minute for a person with tidal volume of 500 ml, dead space
volume of 150 ml and respiratory rate of 10 breaths per minute is
A) 1500 ml B) 3500 ml C) 5000 ml D) 6500 ml
... 2 ...
... 2 ...
8. In the lung, the ventilation-perfusion ratio is
A) Low at the apex and high at the base B) Low at both apex and base
C) High at apex and low at base D) High at both apex and base
9. Oxygen therapy is most useful in
A) Histotoxic hypoxia B) Stagnant hypoxia
C) Anaemic hypoxia D) Hypoxic hypoxia
10. In a patient with decompression sickness, the joint pain is due to the blocking of blood
vessels by
A) Oxygen B) Carbon dioxide C) Nitrogen D) Helium
11. The fastest-conducting nerve fibers in the human body are
A) A-alpha fibers B) A-beta fibers C) A-gamma fibers D) A-delta fibers
12. Which of the following is TRUE regarding graded potential?
A) It is an all-or-none phenomenon B) Conduction is non-decremental
C) It can be summated D) It is larger in amplitude than an action potential
13. The sense of pain and temperature is carried by which tract?
A) Lateral spinothalamic tract B) Dorsal spinocerebellar tract
C) Dorsal column pathway D) Anterior spinocerebellar tract
14. The receptor for the inverse stretch reflex is
A) The muscle spindle B) The Golgi tendon organ
C) The Pacinian corpuscle D) Ruffini's end organs
15. Which of the following is a feature of a lower motor neuron lesion?
A) Extensor plantar reflex B) Increased muscle tone
C) Increased stretch reflexes D) Fasciculation of muscle
16. Damage to the Wernicke's Area will cause
A) Dysgeusia B) Bitemporal hemianopia
C) Sensorineural hearing loss D) Fluent aphasia
17. Which of the following is involved in converting short-term memories to long-term
memory?
A) Hippocampus B) Amygdala C) Corpus callosum D) Frontal cortex
18. Examination of a patient showed pupillary constriction, drooping of the eyelid, and
sinking of the eyeball on one side of the face (enophthalmos). There was also
vasodilation of blood vessels (flushing) on the affected side with a lack of sweating.
What is the probable cause for these findings?
A) Myasthenia gravis B) Lambert-Eaton syndrome
C) Horner's syndrome D) Amyotrophic lateral sclerosis
19. A 25-year-old man develops head injury and fracture of the cribriform plate following
a motorcycle accident. Which cranial nerve is most likely to be injured in this patient?
A) Cranial nerve IV B) Cranial nerve III C) Cranial nerve II D) Cranial nerve I
20. A 25-year-old woman comes to the hospital complaining of sudden impairment of
taste sensation. Examination of taste revealed loss of taste sensation from the anterior
2/3rd of the tongue. Which cranial nerve is likely involved?
A) Trigeminal nerve B) Facial nerve C) Glossopharyngeal nerve D) Vagus nerve
*********
[MBBS 0824]
This post was last modified on 30 November 2024