The thickening of walls of arteries is called
arthritis
aneurysm
arteriosis
arteriosclerosis
Microscopic blood vessels in the liver are called
ductules
sinusoids
venules
arterioles
Lead concentration in blood is considered alarming if it is
5 μg/100 ml
10 μg/100 ml
20 μg/ 100 ml
30 μg/100 ml
Carotid artery supplies
impure blood to liver
impure blood to kidney
oxygenated blood to brain
oxygenated blood to limbs
Which arterial arches are absent in a frog?
Ist, 2nd and 5th
3rd and 4th
3rd, 4th and 5th
5th and 6th
In mammalian heart, the systemic circulation of blood is powered by
Ventricle
left atrium
right atrium
both '2' and '3'
A four - chambered heart is not found in
birds
snake
mammals
crocodile
The study of blood group is
of no importance
of great clinical significance
of minor clinical importance
important for an unhealthy person
Spiral valve is present in
right auricle
sinus venosus
right ventricle
truncus arteriosus
Which of the following decreases during aerobic exercise?
skin temperature
cerebral blood flow
mean blood pressure
volume of circulating blood