Physiology MCQs

Page No. 33

What effect does hyperventilation have on the oxygen binding affinity of hemoglobin ?


aP50 and oxygen affinity decrease

✖


bP 50 and oxygen affinity increase

✓


cP 50 decreases and the oxygen affinity increases

✖


dP50 increase and the oxygen affinity decreases

✖



During the initial part of inspiration, which of the following does not occur ?


aIntrapulmonary pressure falls

✖


bIntra thoracic pressure rises

✓


cIntra-abdominal pressure rises

✖


dThe partial pressure of O2 in dead space rises

✖



Cyanosis or bluish coloration of skin and mucus membrane depends upon______________?


aThe relative proportion of reduced and oxygenated hemoglobin

✖


bThe absolute amount of reduced hemoglobin

✓


cThickness of the skin

✖


dFragility of capillaries

✖



Limitation of inspiration by vagal lung inflation signals is called the______________?


aAutonomic reflex

✖


bBainbridge reflex

✖


cHerring – Breur reflex

✓


dDynamic stretch reflex

✖



Non- respiratory function of the lung is_________________?


aDopamine metabolism

✖


bAdrenaline metabolism

✖


cSerotonin metabolism

✓


dPGE2 production

✖


View Answer Serotonin metabolism

Oxygen affinity is increased by all except_________________?


aAlkalosis

✖


bHypoxia

✓


cIncreased HbF

✖


dHypothermia

✖


View Answer Hypoxia

Arterial O2 content is reduced in one of following ______________?


aStagnant hypoxia

✖


bAnemic hypoxia

✓


cHistotoxic hypoxia

✖


dHypoxic or arterial hypoxia

✖


View Answer Anemic hypoxia

Oxygen affinity decreases in_________________?


aHypoxia

✓


bHypothermia

✖


cHbF

✖


dIncreased pH

✖


View Answer Hypoxia

Vital capacity is a measure of________________?


aTidal volume

✖


bInspiratory reserve volume plus expiratory volume

✖


cTidal volume plus inspiratory reserve volume plus expiratory reserve volume

✓


dExpiratory reserve volume plus reserve volume

✖



Ventilation perfusion ratio is maximum in_______________?


aBase of lung

✖


bApex of lung

✓


cPosterior lobe of lung

✖


dMiddle lobe of lung

✖


View Answer Apex of lung

Goto Page No.

Page 33 of 52

Alphabetical MCQs Categories
—

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"
—

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan