Blood Flashcards
(27 cards)
What is the primary function of the circulatory system?
To transport blood, nutrients, gases, and waste products throughout the body.
True or False: The heart is a muscle that pumps blood through the circulatory system.
True
Fill in the blank: The main components of the circulatory system are the heart, blood, and ______.
blood vessels
What are the two main types of circulation in the circulatory system?
Systemic circulation and pulmonary circulation.
Multiple choice: Which blood vessel carries oxygen-rich blood away from the heart?
Arteries
What is the role of veins in the circulatory system?
To carry deoxygenated blood back to the heart.
True or False: Arteries have thinner walls than veins.
False
Fill in the blank: The largest artery in the body is the ______.
aorta
What is the name of the liquid component of blood?
Plasma
Multiple choice: Which type of blood cell is responsible for oxygen transport?
Red blood cells
What is the function of white blood cells in the circulatory system?
To fight infections and protect the body against disease.
True or False: The heart has four chambers.
True
Fill in the blank: The two upper chambers of the heart are called ______.
atria
What is the function of the valves in the heart?
To prevent backflow of blood.
Multiple choice: Which part of the heart receives deoxygenated blood from the body?
Right atrium
What is the term for the process of blood circulation starting from the heart to the lungs and back?
Pulmonary circulation
True or False: Blood pressure is a measure of the force of blood against the walls of blood vessels.
True
Fill in the blank: The ______ node is known as the heart’s natural pacemaker.
sinoatrial
What is the average resting heart rate for adults?
60 to 100 beats per minute.
Multiple choice: Which condition is characterized by high blood pressure?
Hypertension
What is the primary role of capillaries in the circulatory system?
To facilitate the exchange of oxygen, carbon dioxide, and nutrients with tissues.
True or False: The circulatory system is also known as the cardiovascular system.
True
Fill in the blank: The ______ system works closely with the circulatory system to transport hormones.
endocrine
What type of blood vessel has the thinnest walls?
Capillaries
