HONDROS BIO 117 EXAM 3 Questions and Answers
| Latest Update 2026/2027 (100% Verified Solutions)
Latest Edition | Graded A+.
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
The pulmonary arteries take blood to: - ANSWER The lungs
What is the "inside layer" of the heart - ANSWER Endocardium
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
What are the layers of the heart? - ANSWER endocardium,
myocardium, epicardium and pericardium
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
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
The tricuspid valve is found: - ANSWER Between the right
atrium and right ventricle
,What fluid can be found between the visceral and parietal
pericardium? - ANSWER Serous fluid
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
Name the blood vessels that deliver oxygenated blood to the
heart tissue. -
ANSWER Coronary arteries
Which of the following are AV valves?
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
(True or False) The left side of the heart pumps blood to the
lungs to receive oxygen - ANSWER False
Name the blood vessels that drain deoxygenated blood from the
heart tissue. -
ANSWER Coronary Veins
The amount of blood pumped by our heart in one minute is
called what? -
ANSWER Cardiac Output
Why do we have valves in our heart? - ANSWER To prevent back
flow
The sympathetic nervous system would cause our heart rate to:
- ANSWER Increase
The coronary veins drain ________________________ from the
heart tissue. -
ANSWER Deoxygenated Blood
The parasympathetic nervous system would cause our heart
rate to: - ANSWER Decrease
The closing of which set of valves causes the "first heart sound"?
- ANSWER AV Valves
| Latest Update 2026/2027 (100% Verified Solutions)
Latest Edition | Graded A+.
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
The pulmonary arteries take blood to: - ANSWER The lungs
What is the "inside layer" of the heart - ANSWER Endocardium
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
What are the layers of the heart? - ANSWER endocardium,
myocardium, epicardium and pericardium
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
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
The tricuspid valve is found: - ANSWER Between the right
atrium and right ventricle
,What fluid can be found between the visceral and parietal
pericardium? - ANSWER Serous fluid
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
Name the blood vessels that deliver oxygenated blood to the
heart tissue. -
ANSWER Coronary arteries
Which of the following are AV valves?
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
(True or False) The left side of the heart pumps blood to the
lungs to receive oxygen - ANSWER False
Name the blood vessels that drain deoxygenated blood from the
heart tissue. -
ANSWER Coronary Veins
The amount of blood pumped by our heart in one minute is
called what? -
ANSWER Cardiac Output
Why do we have valves in our heart? - ANSWER To prevent back
flow
The sympathetic nervous system would cause our heart rate to:
- ANSWER Increase
The coronary veins drain ________________________ from the
heart tissue. -
ANSWER Deoxygenated Blood
The parasympathetic nervous system would cause our heart
rate to: - ANSWER Decrease
The closing of which set of valves causes the "first heart sound"?
- ANSWER AV Valves
