8 Questions
What is the main function of the circulatory system?
Transport of various substances
Which of the following is NOT a component of the blood circulatory system?
Kidneys
Which of the following is NOT transported by the circulatory system?
Bile
What is present in humans and higher animals as an independent system for blood circulation?
Circulatory system
What is the weight of the human heart?
Around 360 grams
What type of muscles make up the human heart?
Involuntary cardiac muscles
How many chambers does the human heart consist of?
Four chambers
Which membrane protects the heart from friction and mechanical shocks?
Double-layered peritoneal membrane
Study Notes
Circulatory System
- The main function of the circulatory system is to transport oxygen and nutrients to cells and remove waste products.
Components of the Blood Circulatory System
- The components of the blood circulatory system include the heart, arteries, veins, and blood vessels.
Function of the Circulatory System
- The circulatory system transports oxygen, nutrients, and hormones to cells and removes waste products like carbon dioxide.
Higher Animals' Circulatory System
- In humans and higher animals, the circulatory system is an independent system for blood circulation.
Structure of the Heart
- The human heart weighs approximately 250-300 grams.
- The human heart is composed of cardiac muscles.
- The human heart consists of four chambers: the left and right atria, and the left and right ventricles.
Protection of the Heart
- The pericardium membrane protects the heart from friction and mechanical shocks.
Test your knowledge of the human blood circulatory system, including the functions of the heart, blood vessels, capillaries, and the transportation of substances like water, hormones, oxygen, nutrients, and waste materials.
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