Roles
What is the purpose of the circulatory system?
a. Regulating body temperature
b. Transporting glucose and gases
c. Maintaining pH balance
d. Fighting infections
b. Transporting glucose and gases
How is the color of human blood typically represented in diagrams?
a. Blue
b. Green
c. Red
d. Yellow
c. Red
How many chambers are in the heart
4
True or False: Arteries generally carry oxygen-poor blood.
a. True
b. False
b. False
What is the circulatory system?
a. The body's transport system consisting of the lungs, heart, blood vessels, and blood.
b. The system that draws air into the lungs.
c. The network of blood vessels that delivers oxygen to the body's tissues.
d. The liquid containing four components: plasma, red blood cells, white blood cells, and platelets.
a - The circulatory system is the body's transport system consisting of the lungs, heart, blood vessels, and blood.
What role does the circulatory system play in the body?
a. Drawing air into the lungs.
b. Transporting oxygen to the body's tissues.
c. Defending the body against pathogens.
d. All of the above.
d - The circulatory system plays the role of drawing air into the lungs, transporting oxygen to the body's tissues, and defending the body against pathogens.
What are the main components of blood?
plasma, red blood cells, white blood cells, and platelets
Which chambers of the heart pump deoxygenated blood?
a. Right atrium and right ventricle
b. Left atrium and left ventricle
c. Right atrium and left ventricle
d. Left atrium and right ventricle
a. Right atrium and right ventricle
True or False: Arteries transport oxygenated blood away from the heart.
True - Arteries transport oxygenated blood away from the heart.
How is oxygen delivered to organs and tissues?
a. Through veins
b. Through arteries
c. Through capillaries
d. Through the heart
c. Through capillaries
What is the primary role of capillaries?
a. To carry oxygenated blood away from the heart
b. To carry deoxygenated blood back to the heart
c. To allow nutrients, gases, and waste products to move between the blood and the cells
d. To prevent low pressure blood from flowing backwards
c - To allow nutrients, gases, and waste products to move between the blood and the cells
Which component of blood is responsible for transporting gases?
a. Plasma
b. White blood cells
c. Platelets
d. Red blood cells
d. Red blood cells
True or False: The coordination of the heart's contractions is part of the cardiac cycle.
a. True
b. False
a. True
True or False: Capillaries have thick muscular walls to cope with high blood pressure.
False - Capillaries have extremely thin walls to support the exchange of nutrients, gases, and waste products.
What is the main function of plasma?
a. Transporting oxygen to the body's tissues.
b. Defending the body against pathogens.
c. Allowing nutrients, gases, and waste products to move from blood to cells.
d. Forming a clot to stop bleeding.
c Allowing nutrients, gases, and waste products to move from blood to cells
What is the role of white blood cells?
a. To transport oxygen
b. To defend the body against pathogens
c. To clot blood
d. To transport nutrients
b - To defend the body against pathogens
What is the function of hemoglobin in red blood cells?
a. Maintaining pH balance
b. Regulating body temperature
c. Transporting oxygen
d. Transmitting electrical signals
c. Transporting oxygen
How does the heart receive its own supply of blood?
a. Through coronary veins
b. Through capillaries
c. Through pulmonary veins
d. Through coronary arteries
d. Through coronary arteries
True or False: The coronary arteries deliver oxygen to the heart.
a. True
b. False
a. True
Why are platelets important?
a. They transport oxygen to the body's tissues.
b. They defend the body against disease-causing organisms.
c. They allow nutrients, gases, and waste products to move from blood to cells.
d. They form a clot to stop bleeding.
d - Platelets form a clot to stop bleeding.
What is the role of red blood cells?
a. To transport oxygen to the body's tissues
b. To defend the body against pathogens
c. To cause blood clotting
d. To transport nutrients and waste products
a. To transport oxygen to the body's tissues
What determines the shade of red in human blood?
a. The amount of oxygen in the blood
b. The presence of plasma
c. The concentration of glucose
d. The size of the platelets
a. The amount of oxygen in the blood
Which valves in the heart prevent backflow of blood?
a. Aortic valves
b. Mitral valves
c. Tricuspid valves
d. Pulmonary valves
c. Tricuspid valves
True or False: Veins have valves to prevent low pressure blood from flowing backwards.
True - Veins have valves to prevent low pressure blood from flowing backwards due to gravity.
What condition can occur when oxygen-rich and oxygen-poor blood mix in the heart?
a. Heartburn
b. Anemia
c. Congenital heart defect
d. High blood pressure
c. Congenital heart defect