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Bio 431 Unit 1 Review Exam Questions with Complete Answers
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Bio 431 Unit 1 Review Exam Questions with Complete Answers
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Bio 431 Unit 1 Review Exam Questionswith Complete Answers
What are the coverings of the heart? - Answer--fibrous pericardium
-parietal pericardium
-epicardium
What are the layers of the heart wall? - Answer--myocardium
-endocardium
What is the pericardium? - Answer-A double-walled sac around the heart
Where is the fibrous pericardium located? - Answer-On the superficial part of the
pericardium
Where is the serous pericardium located? - Answer-between (deep to the) fibrous
pericardium and heart
Where is the parietal pericardium located? - Answer-Lines the internal surface of the
fibrous pericardium
Where is the visceral pericardium located? - Answer-on the heart itself (visceral layer of
the serous pericardium)
Where is the myocardium located? - Answer-forms the bulk of the heart ("muscle heart")
Where is endocardium located? - Answer-inner layer of the heart (thin white sheet of
simple squamous endothelium tissue)
What is another name for the visceral pericardium? - Answer-epicardium
Where are the cardiac muscle cells located? - Answer-Myocardium
Where is the right atrium located? - Answer-The upper right chamber of the heart above
the right ventricle
Where is the left atrium located? - Answer-The upper left chamber of the heart above
the left ventricle
Where is the right ventricle located? - Answer-The bottom right chamber of the heart
below the right atrium
Where is the left ventricle located? - Answer-The bottom left chamber of the heart below
the left atrium
, What is the function of the right atrium? - Answer-Receives deoxygenated blood from
the body from the systemic circulation via the superior and inferior vena cava
What is the function of the left atrium? - Answer-It receives oxygenated blood from the
lungs via the pulmonary arteries
What is the function of the right ventricle? - Answer-Pumps blood into the pulmonary
trunk to the lungs (right or left)
What is the function of the left ventricle? - Answer-It pumps oxygenated blood into the
aorta, then around the body via the systemic circulation
What muscles are found in the right atrium? - Answer-Pectinate muscles
What muscles are found in the right ventricle? - Answer-Papillary muscles
What muscles are found in the left ventricle? - Answer-Papillary muscles
Why is there a difference in the size of the chambers? - Answer-The difference in size
of the chambers is due to the chambers' function:
-atria: they are small, thin-walled chambers that only contract minimally to push blood
downwards into the ventricles
-ventricles: they are the actual pumps of the heart -->
~left ventricle is thicker and ejects blood into the aorta, which is then sent to the rest of
the body's systems
~right ventricle: only pumps blood into the pulmonary trunk, which then pumps into the
lungs
What are the names of the 4 heart valves? - Answer--tricuspid valve
-bicuspid valve
-pulmonary semi-lunar valve
-aortic semi-lunar valve
Where is the tricuspid valve located? - Answer-between right atrium and right ventricle
Where is the bicuspid valve located? - Answer-between left atrium and left ventricle
Where is the pulmonary semilunar valve located? - Answer-between right ventricle and
pulmonary trunk
Where is the aortic semilunar valve located? - Answer-between left ventricle and aorta
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