The human circulatory system consists of $.....$

The most common site for a fatal occlusion leading to myocardial infarction is:

The circulation of blood was discovered by

When the heart of a frog is removed from the body,it continues to beat for some time. Select the correct statement$(s)$ from the following:
$(i)$ The frog is a cold-blooded animal.
$(ii)$ The frog does not have a heart-based circulatory system.
$(iii)$ The heart has myogenic properties.
$(iv)$ The heart is self-excitable.

The nodal tissue located in the lower left corner of the right atrium is

Which of the following statements regarding cardiac output is incorrect?