Chapter 6 Anatomy And Physiology: The Cardiovascular And Lymphatic Flashcards
What is the primary function of the cardiovascular system?
To transport nutrients, gases, hormones, blood cells, and waste products throughout the body.
True or False: The heart has four chambers.
True
Fill in the blank: The upper chambers of the heart are called _____ and the lower chambers are called _____ .
atria; ventricles
What type of blood vessel carries oxygenated blood away from the heart?
Arteries
What is the function of veins?
To carry deoxygenated blood back to the heart.
Multiple Choice: Which part of the heart is responsible for pumping blood to the lungs?
Right ventricle
What is the role of capillaries in the circulatory system?
To allow the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.
True or False: The lymphatic system is part of the cardiovascular system.
False
What fluid is transported by the lymphatic system?
Lymph
Fill in the blank: The _____ are small vessels that collect lymph from tissues.
lymphatic capillaries
Multiple Choice: Which organ is primarily responsible for filtering lymph?
Lymph nodes
What is the function of the spleen in the lymphatic system?
To filter blood and help fight infections.
True or False: The cardiovascular system and lymphatic system work independently of each other.
False
What is the name of the largest artery in the body?
Aorta
Fill in the blank: The _____ valve prevents backflow of blood from the aorta into the left ventricle.
aortic
What is the normal range for resting heart rate in adults?
60 to 100 beats per minute
Multiple Choice: Which component of blood is responsible for oxygen transport?
Red blood cells
True or False: The heart is a muscle that requires oxygen to function.
True
What is the term for the electrical impulses that trigger heartbeats?
Action potentials
Fill in the blank: The _____ node is known as the natural pacemaker of the heart.
sinoatrial (SA)
What does blood pressure measure?
The force of blood against the walls of the arteries.
Multiple Choice: Which of the following is NOT a component of blood?
Bile
What is the role of platelets in the blood?
To help with blood clotting.
True or False: The lymphatic system helps maintain fluid balance in the body.
True
