Week 7 - Circulatory system of fish
Closed type of circulatory system is found in fishes.
Blood is reddish in color due to the presence of hemoglobin.
Hemoglobin is found in erythrocytes. Thrombocytes are useful in
blood clotting.
Heart in fishes is two chambered with an auricle and ventricle. It is known as venous heart due to the circulation of only impure
blood.
Arterial and venous systems are developed in fishes. Hepato portal system is developed in fishes.