Breaking and blood circulation is controlled by
Breathing and blood circulation controlled by medulla oblongata, autonomic nervous system.
Ref: NCERT Psychology Class 12 Chapter 1 Assessment, Psychological Testing Textbook
#blood circulation
11 public questions tagged with this topic.
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What is the primary function of the pulmonary artery?
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
Which of the following is incorrect regarding blood circulation?
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
What is the function of the hepatic portal system?
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
Which of the following is incorrect about the hepatic portal system?
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
Which chamber of the heart receives deoxygenated blood from the body?
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
Which valve prevents backflow of blood into the left atrium?
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
Which of the following is incorrect about the function of veins?
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
Which of the following is incorrect about the human circulatory system?
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
Which of the following is NOT a function of the circulatory system?
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
Which type of blood circulation is present in frogs?
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
