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The sinus venosus of frog is located on
Option: 1
Dorsal surface of the heart of frog

Option: 2
Ventral surface of the heart of frog

Option: 3
Dorsal surface of the heart of rabbit

Option: 4
Ventral surface of the heart of rabbit

Answers (1)

best_answer

Circulatory System in Frogs

Blood Vascular System

The vascular system of a frog is a well-developed closed type.
The blood-vascular system involves the heart, blood vessels and blood.
Heart is a muscular structure situated in the upper part of the body cavity.
It has three chambers, two atria and one ventricle and is covered by a membrane called the pericardium.
A triangular structure called sinus venosus joins the right atrium. It receives blood through the major veins called the vena cava.
The ventricle opens into a sac-like conus arteriosus on the ventral side of the heart.
The blood from the heart is carried to all parts of the body by the arteries (arterial system).
The veins collect blood from different parts of the body to the heart and form the venous system
A special venous connection between liver and the intestine is called the hepatic portal system is present in frogs.

Sinus venosus is a triangular chamber attached dorsally to heart formed by the union of three main vena cava.

Posted by

himanshu.meshram

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