Heart Flashcards
What is the primary function of the cardiovascular system?
To transport blood, nutrients, oxygen, carbon dioxide, and hormones throughout the body.
True or False: The heart is a double pump.
True
What are the two main circulations in the cardiovascular system?
Systemic circulation and pulmonary circulation.
Fill in the blank: The right side of the heart pumps blood to the _____ for oxygenation.
lungs
What is the name of the valve that separates the left atrium from the left ventricle?
Mitral valve
Which blood vessels carry oxygen-rich blood away from the heart?
Arteries
What type of blood vessel is responsible for gas exchange?
Capillaries
True or False: Veins carry deoxygenated blood back to the heart.
True
What is the role of the sinoatrial (SA) node in the heart?
It acts as the natural pacemaker, initiating the heartbeat.
What are the four chambers of the heart?
Right atrium, right ventricle, left atrium, left ventricle.
Multiple Choice: Which of the following is NOT a component of blood? A) Plasma B) Red blood cells C) Lymph D) White blood cells
C) Lymph
What is the function of red blood cells?
To transport oxygen from the lungs to the body’s tissues and carbon dioxide from the tissues back to the lungs.
Fill in the blank: The _____ circulatory system is responsible for supplying blood to the heart muscle itself.
coronary
True or False: The left ventricle has thicker walls than the right ventricle.
True
What is the term for the pressure in the arteries during the contraction of the heart?
Systolic pressure
What is the term for the pressure in the arteries when the heart is at rest?
Diastolic pressure
Which component of blood is primarily responsible for clotting?
Platelets
Fill in the blank: The _____ system helps regulate blood pressure and blood flow.
nervous
What is the role of the aorta?
To carry oxygenated blood from the left ventricle to the rest of the body.
True or False: The pulmonary veins carry deoxygenated blood to the heart.
False
What is the function of the valves in the heart?
To ensure one-way flow of blood through the heart chambers.
Multiple Choice: Which part of the heart receives deoxygenated blood from the body? A) Left atrium B) Right atrium C) Left ventricle D) Right ventricle
B) Right atrium
What is the role of the interventricular septum?
To separate the left and right ventricles of the heart.
Fill in the blank: The _____ system controls the heart rate and rhythm.
autonomic nervous
What is the primary purpose of the pulmonary circulation?
To carry deoxygenated blood from the heart to the lungs for oxygenation.
True or False: The cardiovascular system includes the heart, blood, and blood vessels.
True
