Biology Homework [The Heart] Flashcards
11.3.25 (20 cards)
Nma the vessels that supply oxygen to the heart muscles.
Coronary arteries.
Name the vessel that brings deoxygenated blood form the heart to the lungs.
Pulmonary Artery
Which side of the blood has deoxygenated blood?
Right
Why is the muscle wall of the left ventricle thicker than the right ventricle?
To generate more pressure to force blood all over the body (left side only to lungs)
State the function of red blood cells.
Transport oxygen to all the cells in the body.
Name the large vessel that brings oxygenated blood out of the heart to the body.
Aorta
What is the main type of tissue found in the heart wall?
Muscle
Name the substances transported in the blood plasma.
Hormones, proteins, urea, carbon dioxide, glucose
How does the structure of a capillary relate to its function?
Capillaries are one cell thick so there is a short diffusion distance.
What can be used to replace a damaged heart valve?
Biological or mechanical valves.
Name the lower chambers of the heart.
Ventricles.
Name the vessel that brings oxygenated blood from the lungs to the heart.
Pulmonary vein.
What is the double circulatory system?
One part carried blood between heart and lungs, the other carries blood between heart and other organs.
Why does the heart have valves?
To prevent backflow of blood so blood flows in one direction.
How do white blood cells protect the body?
-Phagocytosis
-Produce antitoxins
-Produce antibodies
What is meant by a faulty heart valve?
The valve might not be able to open fully or might leak.
Describe the flow of blood in the heart.
Vena cava brings D.O blood into right atrium, right ventricle, pulmonary artery takes to the lungs for oxygen, pulmonary vein brings O. blood into left atrium, left ventricle, aorta to body.
Name the upper chambers of the heart.
Atria
Which side of the heart has oxygenated blood?
Left
Name the large vessel that brings deoxygenated blood back into the heart.
Vena cava
