The antibodies are
germs
carbohydrates
proteins
lipids
Which one of the following organs in the human body is most affected due to shortage of oxygen?
Intestine
Skin
Kidney
Brain
In humans, blood passes from the post caval to the diastolic right atrium of heart due to
pushing open of the venous valves
suction pull
stimulation of the sino auricular node
pressure difference between the post caval and atrium.
The exchange of gases in the alveoli of the lungs takes place by
simple diffusion
osmosis
active transport
passsive transport
Damage to thymus in a child may lead to
a reduction in haemoglobin content of blood
a reduction in stem cell production
loss of antibody mediated immunity
loss of cell mediated immunity
Glucose is carried from digestive tract to liver by
pulmonary vein
hepatic portal vein
hepatic artery
None of the above
People living at sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at an altitude of 5400 metre have around 8 million. This is because at high altitude.
atmospheric O2 level is less and hence, more RBCs are needed to absorb the required amount of O2 to survive
there is more UV radiation which enhances RBC production
people eat more nutritive food, therefore, more RBCs are formed
people get pollution - free air to breathe and more oxygen is available
When the oxygen supply to the tissue is inadequate , the condition is
Dyspnea
Hypoxia
Asphyxia
Apnea
What is the vital capacity of our lungs?
Inspiratory reserve volume plus tidal volume
Total lung capacity minus expiration reserve volume
Inspiratory reserve volume plus expiration reserve volume
Total lung capacity minus residual volume
Wall of blood capillary is formed of
Haemocytes
parietal cells
endothelial cells
oxyntic cells
