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The cardiovascular system consists of the heart, blood vessels, and the approximately 5 liters of blood that the blood vessels transport.
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Is Oxygen transported primarily by blood plasma true or false?
False. Oxygen is primarily transported by red blood cells, specifically by hemoglobin molecules inside the red blood cells. Oxygen binds to hemoglobin in the lungs and is then transported to tissues throughout the body.
Oxygenated blood is found in all arteries of the body. Is this true or false?
False. Oxygenated blood is found in the systemic arteries, which carry blood away from the heart to the body, but not in the pulmonary arteries, which carry blood from the heart to the lungs for oxygenation.
Does Mother's blood flows into the foetus through placenta.True or False?
True. The placenta acts as a bridge between the mother and the fetus, allowing nutrients, oxygen, and waste products to pass between them. This includes the exchange of oxygen and nutrients in the mother's blood to the fetus.
True or False the tricuspid valve is closed while the atrium is contracting?
False. The tricuspid valve is open while the atrium is contracting, allowing blood to flow from the atrium into the ventricle.
Is it true or false that The PNS is the part of the nervous system that provides links between the outside world and your bodies?
True. The Peripheral Nervous System (PNS) is the part of the nervous system that connects the central nervous system (CNS) to the rest of the body. It includes nerves that carry signals between the brain and spinal cord and the various parts of the body, allowing for communication between the external environment and the body's internal systems.
True or false. fat is adsorbed directly from the digestive tract to the blood.?
False, fats go to the lymphatic system.
Receives blood via the hepatic portal system?
THE LIVER
True or false the fibula is part of the circulatory system?
No, the circulatory system involves blood, heart, viens, etc.
The respiratory system includes the nose pharynx larynx trachea and bronchi?
false
Homeostasis is a function carried out solely by the cardiovascular and respiratory systems?
false
Red blood cells are called macrophages true or false?
False. Red blood cells are not called macrophages. Macrophages are a type of white blood cell that helps to recognize, engulf, and destroy pathogens and foreign substances in the body.
Which of the following statements about arteries and veins is false?
Veins can collapse, serving as the blood vessel with the greatest resistance to blood flow in the circulatory system
True or false the number one cause of death is the US is cardiovascular disease?
True
Is cardiovascular endurance the ability to perform short duration high intensity exercise?
false
True or false blood vessels that carry blood to the heart are called arteries?
False. Blood vessels that carry blood away from the heart are called arteries. Blood vessels that carry blood to the heart are called veins.
Cardiovascular exercise causes your lungs to breathe less often?
False - If you are exercising, you are breathing more.
Is it true or false that blood circulates through the body only a few times a day?
False. Blood circulates through the body multiple times per minute, not just a few times a day. The circulatory system continuously supplies oxygen and nutrients to cells and removes waste products, so the blood is constantly moving throughout the body.
