Chapter 6: Structures and Functions of Circulatory, Lymphatic and Immune Systems Flashcards
Blood is part of which System; Circulatory, Lymphatic or Immune?
Circulatory System and flows through blood vessels.
Lymph is part of which System; Circulatory, Lymphatic or Immune?
Lymphatic System and flows through lymphatic vessels.
Blood is a reddish-colored fluid that supplies what?
The tissues and organs with oxygen, transports other nutrients, hormones and removes wastes.
Lymph is a clear fluid that bathes the tissues to?
Maintain fluid balance and remove pathogens.
In the Circulatory System, the heart pumps blood throughout?
The body.
The Lymphatic System does not have a pump-like organ and depends on?
The messaging action of muscles to transport the fluid.
The flow of blood is fast and moves in?
Circular motions.
The flow of lymph is slow and moves in?
Only one direction.
How does the kidneys filter blood and excrete waste products?
Via the urinary system.
What does the Circulatory System consist of?
The heart, and blood stream.
Why the heart and bloodstream work together?
To pump blood to all body tissues.
What muscular organ circulates blood?
The heart.
What is the outermost protective layer of the heart?
Pericardium.
What does the pericardium contains?
A lubricative liquid to prevent friction when the heart beats.
What is the inner layer of the heart?
The epicardium that envelops the heart muscle.
The Myocardium is the heart muscle that maintains?
The pumping movement necessary to move the blood throughout the body.
What does the Endocardium lines?
The interior surface of the heart.
Blood leaves the heart and travels throughout the body in blood vessels, which decrease in diameter as?
They move away from the heart and toward the tissues and organs.
Blood exits the heart through arteries then arterioles and then capillaries where what happens?
Where the exchange of oxygenated and deoxygenated blood occurs.
What are the two closed loops that the Circulatory system includes?
Pulmunary Circulation and Systemic Circulation.
What is the Pulmonary Circulation?
The flow of oxygenated and deoxygenated blood between the heart and lungs.
What is the Systemic Circulation?
Delivers oxygenated blood from the heart to all parts of the body and returns deoxygenated blood back to the heart.
The Lymphatic and Immune Systems work together and play an essential role in?
The immune functions of the body.
What does Lymph do?
Is a fluid that removes dead cells, debris and pathogens form intercellular spaces.
What are Lymph Nodes?
The immune system’s first line of defense, filtering the lymph to remove the impurities,
What is the Spleen?
A mass of lymphoid tissue that functions like a large lymph node.
What does the Spleen filter?
Microorganisms from the blood and destroy worn-out erythrocytes.
What are Tonsils?
Three masses lymphoid tissue.
What does Tonsils do?
Prevent pathogens from entering the respiratory system when breathing through the nose or mouth.
