Large arteries have more elastic connective tissue and less smooth muscle, such as
aorta
atrioles
capillaries
all of these
A four - chambered heart is not found in
birds
snake
mammals
crocodile
First heart transplant was performed by
James watson
William Harvey
Har Govind Khorana
Christiaan Barnard
Pylangium in frog is found in
atrium
ventricle
sinus venous
conus arteriosus
In mammalian heart, the systemic circulation of blood is powered by
Ventricle
left atrium
right atrium
both '2' and '3'
The neurogenic heart is found in
rats
rabbits
humans
adult arthropods
Which of the following cation is required for the conversion of prothrombin into active thrombin by thromboplastin?
Cu2+
Fe3+
Fe2+
Ca2+
Heart of crocodile is
single- chambered
two- chambered
three- chambered
four- chambered
The thickening of walls of arteries is called
arthritis
aneurysm
arteriosis
arteriosclerosis
Spiral valve is present in
right auricle
sinus venosus
right ventricle
truncus arteriosus