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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
if the respiratory rate of 'A' is 35 breaths/min and tial volume 185cc/ breath and of 'B' is 25 breaths/min and tidal volume 259 cc/breath thenpulmonary ventilation of 'a' is greater than 'b'
during oxygen transport the oxyhaemoglobin at the tissue level librates oxygen to the cells because in tissueO2 tension is low and CO2 tension is high
pleura is adouble membraned structure
respiration results inrelease of CO2
maximum expiration after full inspiration is calledvital capacity
amount of oxygen present in one gm of haemoglobin is-1.34 ml
in which of the follwong sequence is the CO2 diffused out of the bodyendothelium-->basement membrane-->squamous epithelium
in which of the following the partial pressure of O2 is 95 mm of Hg -pulmonary vein and systemic arteries
trachea gets divided into left and right primary bronchi at the level of -5th thoracic vertebra
chemosensitive area situated adjacent to rhythm centre is highly sensitive toCO2 and H+
TV+ERV is-EC
the enzyme, carbonic anhydrase is found inmore in erthyrocytes and less in plama
trachea is a straight tube extending up to theanterior of thorasic cavity
the total volume of air accommodated in the lungs at the end of forced expiration is sum total ofIRV+TV+RV
the partial pressure of oxygen in alveolar air and oxygenated blood respectively104mm Hg and 95 mm Hg
about 97 per cent of O2 is transported byRBC's in the blood
the amount of O2 delivered by 100 ml blood to the tissue under normal physiological condition5 ml
oxygen carried by blood is liberated inheart
in which known animal respiration occurs without respiratory organfish
the conducting part of respiratory system extends uptorespiratory bronchioles
after taking a long deep breath we do not respire for some seconds due toless CO2 in blood
if expiratory reserve volume is 1100 ml residual volume is 1200 ml and tidal volume is 500 ml, what shall be the functional residual capacity1600
residual air mostly occurs inbronchus
for proper transport of O2 and CO2 blood should beslightly alkaline
what would happen when blood is acidicoxy-haemoglobin curve shifted toward right
respiratory process is regulated by certain specialised centres in the brain one of the following listed centres can reduce the inspiratory duration upon stimulationmedullary expiratory centre
which factor is favourable for the formation of oxyhaemoglobin in the alveolilower temperature
chloride shift occurs in response toHCO3-
vital capacity of lungs isTV+IRV+ERV
the type of tissue lining the nasal passage, bronchioles and fallopian tubes iscolumnar ciliated epithelium
residual volume isgreater than tidal volume
covering over lungs is calledpleura
increasing order of volumestidal<residual<inspiratory<vital
wha is the vital capacity of our lungstotal respiratory volume-residual volume
which of the following factors raise the P50 valve and shifts the HbO2 dissociation curve to the rightrise in Pco2 and H+(fall in pH)
hypoxia is the condition in which less oxygen become available to the tissues, this may be due toless oxygen in atmosphere, more CO2 in air and less RBC'S in blood
in a healthy person the haemoglobin contents more than25gms/100ml
percentage of CO2 carried by human RBC20-25 per cent
choride shift is essential for the transportation ofCO2
70 per cent of CO2 is transported in blood in the form ofbicarbonate
fill in the blanksA-159, B-40, C-40, D-40, E-40
if pH of blood falls the P50 value of haemoglobin will beincreased
in the lungs pneumocyte type-II cell secrete lecithin. what will happen when these cells become inactivealveoli get collapsed
incomplete cartilaginaous rings present in-trachea and primary bronchus, secondary bronchi and tertiary bronchi
is diffusion of O2 and CO2 a function of conducting part of human respiratory systemnon
low pCO2 , lesser H+ concentration and lower temperature enhanceaffinity of O2 with Hb and hence O2-Hb dissosiation curve shifts to the left side
reduction in pH of blood willdecrease the affinity of haemoglobin with oxygen
the partial pressure of oxygen in the alveoli of the lungs ismore than that in the blood
lungs do not collapse between breaths and some air always remains in the lungs which can never be expellled becausethere is -ve intraapleural pressure pulling at the lung walls
which reaction occur in pulmonary cappilariesHb+O2---->HbO2
carbon dioxide is transported from tissues to respiratory surface by onlyerythrocytes
a large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues, this O2acts as a reserve during muscular exercise
what is a possibility for most of us in regard to breathing , by making a conscious effortone can breathe out air through eustachian tubes by closing both the nose and mouth