HONDROS BIO 117 - EXAM 3 Questions with Answers
(100% Correct Answers)
The heart is found in what cavity? Answer: thoracic
Which layer of the heart is found on the inside? Answer: Endocardium
The heart is positioned in-between what? Answer: The lungs
Which layer of the heart is the thickest and is made of cardiac muscle?
Answer: Myocardium
The base of the heart is located at the... Answer: at the 2nd rib
What fluid can be found between the visceral and parietal pericardium?
Answer: Serous fluid
What are the layers of the heart? Answer: endocardium, myocardium,
epicardium and pericardium
The pulmonary arteries take blood to: Answer: The lungs
What is the "inside layer" of the heart Answer: Endocardium
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Blood flows from the superior/inferior vena cava into: Answer: right
atrium
What is the thick muscular layer of the heart that is responsible for
pumping blood? Answer: Myocardium
The pulmonary veins take blood to: Answer: left atrium
What type of muscle is the Myocardium of the heart? Answer: Cardiac
muscle
The tricuspid valve is found: Answer: Between the right atrium and right
ventricle
What layer of the heart is directly attached to the heart? Answer:
Epicardium
The pulmonary valve is found: Answer: Between the right ventricle and
the pulmonary arteries
What layer surrounds the heart but does not directly touch it? Answer:
Pericardium
The bicuspid (or mitral valve) is found: Answer: Between the left atrium
and left ventricle
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Where in layers of the heart can pericardial fluid be found? Answer:
Between the Epicardium and Pericardium
The "hardest working" and thickest chamber of the heart is... Answer:
The left ventricle
What is the condition and result when too much pericardial fluid
accumulates between the epicardium and pericardium? Answer:
Pericardial Effusion
Which vessel carries blood from the pulmonary capillaries to the left
atrium? Answer: pulmonary veins
What is the thick structure that runs down the middle of the heart and
separates the inside of the heart into right and left parts? Answer:
Septum
(True or False) The left side of the heart pumps blood to the lungs to
receive oxygen Answer: False
Name the blood vessels that deliver oxygenated blood to the heart
tissue. Answer: Coronary arteries
Which of the following are AV valves?
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Tricuspid
Bicuspid
Pulmonary
Aortic Answer: Tricuspid and Bicuspid
When do the atria relax (diastole)? Answer: After the P Wave
The coronary arteries deliver ______________________ to the heart tissue.
Answer: Oxygenated blood
What wave represents "all chambers relaxed"? Answer: T wave
Which of the following are semilunar valves?
Tricuspid
Bicuspid
Pulmonary
Aortic Answer: Pulmonary and Aortic
The second heart sound is heard at all what wave? Answer: T wave
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