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The left atrium of the frog’s heart receives oxygenated blood from the lungs.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Circulatory and Excretory System
The right atrium of the frog’s heart receives deoxygenated blood from the body through the vena cava.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Circulatory and Excretory System
Frogs have one ventricle and two atria, not two ventricles and one atrium.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Circulatory and Excretory System
The sinus venosus is a triangular structure that receives deoxygenated blood from the body and directs it to the right atrium.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Circulatory and Excretory System
The vena cava collects deoxygenated blood from the body and delivers it to the right atrium of the frog’s heart.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Circulatory and Excretory System
The ventricle of the frog's heart pumps mixed oxygenated and deoxygenated blood to the body.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Circulatory and Excretory System
Frogs have a double circulatory system, unlike fish, which have a single circulatory system.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Circulatory and Excretory System
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