conjunctiva
pleura
meninges
peritoneum
B. pleura
returns highly oxygenated blood to the left heart for distribution throughout the body
returns highly oxygenated blood to right heart for distribution throughout the body.
delivers blood to lungs low in oxygen
delivers highly oxygenated blood in lungs
Oxidases
Metabolites
ATP
ADP
the oxygen content of the blood
the nitrogen content of the blood
receptors in the larynx
the carbon dioxide content of the bkxxl
egg-laying mammals only
marsupial mammals only
eutherian mammals only
all the mammals
less than that in alveolar air
more than that in alveolar air
equal to that in alveolar air
similar to oxygen pressure in the capillaries
chemicals
physical conditions
nerves
all of these
flattened and ciliated cells to increase the surface area of lungs
columnar and ciliated cells to increase the surface area of lungs
only ciliated cells to increase the surface area of lungs
only squamous cells to decrease the surface area of lungs
25-30 times
10-15 times
14-18 times
20-25 times
RBC
WBC
Both (a) and (b)
RBC and hormones
neuron
alveolus
bronchus
none of these
expiration
inspiration
respiration
oxidation
absence of oxygen
diminished amount of oxygen delivered to the tissues
both (a) and (b)
none of these
500 ml
1000 ml
2000 ml
3000 ml
medulla oblongata
spinal cord
vagus nerve
cerebrum
Glottis
Vocal cords
Vocal sacs
Epiglottis
less than that is lung capillaries
equal to that in lung capillaries
double of that in lung capillaries
half of that in lung capillaries
Cells lining the lung cavities
Cells found in blood
All living cells of the body
RBC only
cerebral cortex
hypothalamus
medulla oblongata
procencephalon
yeast cell in fermentation
a liver cell in glycolysis
an Amoeba in aerobic respiration
a muscle cell in lactic acid formation
tidal volume
ventilation rate
residual volume
all of these
hypercapnia
pulmonary edema
hypoxia
emphysema
3 per cent
25 per cent
16 per cent
20 per cent
carbohydrates are synthesised
proteins are broken down
fat molecules are metabolised
energy is liberated
moist
immersed in water
very thin
vascular
residual volume
tidal volume
vital capacity
lung volume
haemocyanin
haemoglobin
myoglobin
haemoerythrin
external nares
pharynx
larynx
bronchi
asthma
pericarditis
bronchitis
pneumonia
dull red
bluish red
bright red
dull brown
increased alveolar ventilation and increased cardiac output
shift in the haemoglobin dissociation curve to the right
increased erythrocytes and haemoglobin content of blood
all of these