Cardiovascular System Flashcards
What is the main function of the cardiovascular system?
To transport blood, nutrients, oxygen, carbon dioxide, and hormones throughout the body.
True or False: The heart has four chambers.
True
Fill in the blank: The two upper chambers of the heart are called __________.
atria
What are the names of the two lower chambers of the heart?
Ventricles
Which blood vessels carry oxygenated blood away from the heart?
Arteries
What is the primary artery that carries blood from the heart to the rest of the body?
Aorta
True or False: Veins carry deoxygenated blood to the heart.
True
What is the function of capillaries?
To facilitate the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.
Which component of blood is responsible for transporting oxygen?
Red blood cells
What is the term for the contraction phase of the heart?
Systole
What is the term for the relaxation phase of the heart?
Diastole
What is the main pacemaker of the heart?
Sinoatrial (SA) node
Fill in the blank: Blood pressure is measured in __________ over __________.
millimeters of mercury (mmHg)
What is the normal range for resting heart rate in adults?
60 to 100 beats per minute
Which condition is characterized by the hardening and narrowing of the arteries?
Atherosclerosis
What is the role of the valves in the heart?
To prevent the backflow of blood.
True or False: The pulmonary circulation carries blood to and from the lungs.
True
What is the purpose of the coronary arteries?
To supply blood to the heart muscle.
What type of blood vessel has the thinnest walls?
Capillaries
What is the function of plasma in blood? (4)
To transport nutrients, hormones, proteins, and waste products.
Fill in the blank: The heart is located in the __________ cavity.
thoracic
What is the primary function of white blood cells?
To fight infections and provide immune defense.
Which heart valve is located between the left atrium and left ventricle?
Mitral valve
What does ECG stand for?
Electrocardiogram
True or False: The right side of the heart pumps oxygenated blood to the body.
False
What is the term for the amount of blood pumped by the heart in one minute?
Cardiac output
Fill in the blank: The condition known as hypertension refers to __________ blood pressure.
high
What is the primary function of the cardiovascular system?
To transport oxygen, nutrients, hormones, and waste products throughout the body.
True or False: The heart is a muscular organ that pumps blood through the circulatory system.
True
Fill in the blank: The two main components of the cardiovascular system are the heart and _______.
blood vessels
What are the two types of circulation in the cardiovascular system?
Pulmonary circulation and systemic circulation.
Multiple Choice: Which chamber of the heart receives oxygenated blood from the lungs?
Left atrium
What is the function of valves in the heart?
To prevent the backflow of blood.
True or False: Arteries carry blood away from the heart.
True
Fill in the blank: The largest artery in the body is the _______.
aorta
What is the role of red blood cells in the cardiovascular system?
To transport oxygen from the lungs to the body’s tissues.
Multiple Choice: Which type of blood vessel is responsible for nutrient and gas exchange?
Capillaries
What is the normal range for resting heart rate in adults?
60 to 100 beats per minute.
True or False: Veins carry deoxygenated blood back to the heart.
True
Fill in the blank: The heart is divided into four chambers: two atria and two _______.
ventricles
What is the name of the pacemaker of the heart?
Sinoatrial (SA) node.
Multiple Choice: Which part of the heart pumps blood to the lungs?
Right ventricle