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BIOS 255: Week 2 - The Cardiovascular System
(Heart) (Latest Update ) Questions with
Answers | Grade A | 100% Correct
Which of the following membranes are found in the body
cavities and have parietal layers that line the cavities and
visceral layers that cover the organs? - ANSWER serous
membrane
Which is true of cardiac muscle tissue? - ANSWER striated,
uninucleated, intercalated discs
Epicardium characteristics & function - ANSWER - outermost
layer
- composed of elastic fibers & adipose tissue
- produces pericardial fluid
Myocardium characteristics & function - ANSWER - middle layer
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- composed primary of cardiac muscle
- generates force to pump blood
Endocardium characteristics & function - ANSWER - innermost
layer
- regulates contractility
Which chamber of the heart has the thickest myocardium? -
ANSWER left ventricle
Which valve separates the right atrium and the right ventricle? -
ANSWER tricuspid valve
Which valve separates the left atrium and the left ventricle? -
ANSWER bicuspid (mitral) valve
Which valve separates the heart from the vessel that delivers
blood to the lungs to receive oxygen? - ANSWER pulmonary
valve
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Which valve separates the heart from the vessel that delivers
blood to the entire body? - ANSWER aortic valve
Which valve is between the right ventricle and pulmonary
trunk? - ANSWER pulmonary semilunar valve
Which valve is between the left ventricle and ascending aorta? -
ANSWER aortic semilunar valve
What is the region of the thoracic cavity where the heart is
located? - ANSWER mediastinum
Which type of cell junction allows cardiac muscle tissue to
transmit signals rapidly? - ANSWER gap junctions
Which of the following are functions of the pericardium? -
ANSWER - prevents the heart from bouncing in the thoracic
cavity.
- prevents the heart from overfilling with blood
BIOS 255: Week 2 - The Cardiovascular System
(Heart) (Latest Update ) Questions with
Answers | Grade A | 100% Correct
Which of the following membranes are found in the body
cavities and have parietal layers that line the cavities and
visceral layers that cover the organs? - ANSWER serous
membrane
Which is true of cardiac muscle tissue? - ANSWER striated,
uninucleated, intercalated discs
Epicardium characteristics & function - ANSWER - outermost
layer
- composed of elastic fibers & adipose tissue
- produces pericardial fluid
Myocardium characteristics & function - ANSWER - middle layer
,2|Page
- composed primary of cardiac muscle
- generates force to pump blood
Endocardium characteristics & function - ANSWER - innermost
layer
- regulates contractility
Which chamber of the heart has the thickest myocardium? -
ANSWER left ventricle
Which valve separates the right atrium and the right ventricle? -
ANSWER tricuspid valve
Which valve separates the left atrium and the left ventricle? -
ANSWER bicuspid (mitral) valve
Which valve separates the heart from the vessel that delivers
blood to the lungs to receive oxygen? - ANSWER pulmonary
valve
, 3|Page
Which valve separates the heart from the vessel that delivers
blood to the entire body? - ANSWER aortic valve
Which valve is between the right ventricle and pulmonary
trunk? - ANSWER pulmonary semilunar valve
Which valve is between the left ventricle and ascending aorta? -
ANSWER aortic semilunar valve
What is the region of the thoracic cavity where the heart is
located? - ANSWER mediastinum
Which type of cell junction allows cardiac muscle tissue to
transmit signals rapidly? - ANSWER gap junctions
Which of the following are functions of the pericardium? -
ANSWER - prevents the heart from bouncing in the thoracic
cavity.
- prevents the heart from overfilling with blood
