10 public questions tagged with this topic.
The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs for oxygenation.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Circulatory System - Comparative and Evolutionary Aspects
The right ventricle pumps deoxygenated blood into the pulmonary artery, not the aorta.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation ECG and Blood Vessels
The hepatic portal system transports nutrient-rich blood from the intestine to the liver for metabolism and detoxification.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation ECG and Blood Vessels
The hepatic portal vein carries nutrient-rich, deoxygenated blood from the intestine to the liver, not oxygenated blood.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation ECG and Blood Vessels
The right atrium receives deoxygenated blood from the body via the superior and inferior vena cava.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Human Heart - Structure and Cardiac Cycle
The mitral valve (bicuspid valve) prevents backflow of blood from the left ventricle into the left atrium.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Human Heart - Structure and Cardiac Cycle
Not all veins carry deoxygenated blood. Pulmonary veins carry oxygenated blood from the lungs to the left atrium.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Human Heart - Structure and Cardiac Cycle
Humans possess a closed circulatory system, in which blood always remains confined within blood vessels. The human heart is four-chambered and exhibits double circulation.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Lymph and Circulatory Pathways
The circulatory system transports hormones but does not synthesize them; hormones are produced by endocrine glands.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Lymph and Circulatory Pathways
Frogs have double circulation, meaning blood passes through the heart twice in one complete cycle.
Ref: NCERT Class 11 Biology Chapter 7: Structural Organisation in Animals Frog - Anatomy - Circulatory and Excretory System
