BIO 117 – EXAM 3 | 412 2026 EXAM SCRIPT
TEST PAPER QUESTIONS AND SOLUTIONS
GRADED A+
◉ 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
◉ 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
◉ 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?
Tricuspid
Bicuspid
TEST PAPER QUESTIONS AND SOLUTIONS
GRADED A+
◉ 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
◉ 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
◉ 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?
Tricuspid
Bicuspid
