AIDS is caused by HIV that principally infects
all lymphocytes
activator B-cells
T4 lymphocytes
cytotoxic T-cells
Carbon dioxide is transported from tissues to respiratory surface by only
plasma and erythrocytes
plasmas
erythrocytes
erythrocytes and leucocytes
Glucose is carried from digestive tract to liver by
pulmonary vein
hepatic portal vein
hepatic artery
None of the above
Air is breathed through
trachea-lungs-larynx-pharynx-alveoli
nose-larynx-pharynx-bronchus-alveoli-bronchioles
nostrils-pharynx-larynx-trachea-bronchi-brochioles-alveoli
nose-mouth- lungs
Which of the following is not main function of lymph glands?
Forming WBC
Forming antibodies
Forming RBC
Destryoing bacteria
When the oxygen supply to the tissue is inadequate , the condition is
Dyspnea
Hypoxia
Asphyxia
Apnea
The life span of human WBC is approximately
less than 10 days
between 20 to 30 days
betweeen 2 to 3 months
more than 4 months
Removal of calcium from freshly collected blood would
cause delayed clotting
prevent clotting
cause immediate clotting
prevent destruction of haemoglobin
The antibodies are
germs
carbohydrates
proteins
lipids
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
