Carotid artery supplies
impure blood to liver
impure blood to kidney
oxygenated blood to brain
oxygenated blood to limbs
Which of the following decreases during aerobic exercise?
skin temperature
cerebral blood flow
mean blood pressure
volume of circulating blood
A four - chambered heart is not found in
birds
snake
mammals
crocodile
Large arteries have more elastic connective tissue and less smooth muscle, such as
aorta
atrioles
capillaries
all of these
Microscopic blood vessels in the liver are called
ductules
sinusoids
venules
arterioles
First heart transplant was performed by
James watson
William Harvey
Har Govind Khorana
Christiaan Barnard
Which of the following cation is required for the conversion of prothrombin into active thrombin by thromboplastin?
Cu2+
Fe3+
Fe2+
Ca2+
Spiral valve is present in
right auricle
sinus venosus
right ventricle
truncus arteriosus
The neurogenic heart is found in
rats
rabbits
humans
adult arthropods
Heart of crocodile is
single- chambered
two- chambered
three- chambered
four- chambered
