In connection with circulatory system, valves are present

  • [AIPMT 1995]
  • A

    Not only in heart and blood vessels of vertebrates and invertebrates, but in vertebrate lymphatics as well

  • B

    Vertebrate heart only

  • C

    Vertebrate heart and invertebrate hearts only

  • D

    Vertebrate hearts, invertebrate hearts and their blood vessels

Similar Questions

In which chamber of heart, more blood is present?

Definition / Explanation :

$(1)$ Semi lunar valve 

‘Bundle of His’ is a part of which one of the following organs in humans?

  • [AIPMT 2011]

Valves are necessary in veins but not in arteries because

Eustachian valve which is of no significance in the adult mammal, is a vestigial organ, a vestige of