Heart & Blood Flow
What is the primary function of the heart
To pump blood throughout the body
What type of blood vessel carries blood away from the heart?
Arteries
What component of blood carries oxygen to the body's tissues?
Red Blood Cells
What is a common condition caused by high blood pressure?
Hypertension
How many chambers does the human heart have?
Four
What is the name of the valve that prevents backflow of blood from the left ventricle to the left atrium
Mitral valve
Which blood vessel is the smallest and facilitates the exchange of oxygen and nutrients with tissues?
Capillaries
What component of blood helps fight infections?
White Blood Cells
What is the name of the condition where the blood lacks enough healthy red blood cells?
Anemia
What is the name of the upper chambers of the heart?
Atria
What is the name of the blood vessel that carries oxygenated blood from the lungs to the heart?
Pulmonary vein
What is the name of the largest vein in the human body?
Inferior Vena Cava
What is the liquid portion of blood called?
Plasma
What is the term for irregular heartbeats?
Arrhythmia
What organ helps regulate the circulatory system by producing hormones that influence heart rate?
The Adrenal Glands
What is the average resting heart rate for an adult?
60-100 beats per minute.
What is the largest artery in the human body?
Aorta
What component of blood is responsible for clotting?
Platelets
What circulatory disease occurs when arteries become narrowed due to plaque buildup?
Atherosclerosis
What is the approximate total length of all blood vessels in the human body?
About 100,000 Miles
How long does it take for blood to circulate through the entire body?
About 1 minute.
What is the function of capillaries?
To allow the exchange of oxygen, nutrients, and waste between blood and tissues.
What protein in red blood cells binds to oxygen for transport?
Hemoglobin
What disorder causes excessive bleeding due to the lack of blood clotting factors?
Hemophilia
What is unique about the pulmonary artery compared to other arteries?
It carries deoxygenated blood instead of oxygenated blood.