BIO 202 LECTURE EXAM 2 WITH
QUESTIONS AND VERIFIED
ANSWERS GRADED A+ 2026
The Heart chapter 19 & 20 - answer-Study
1. What does the cardiac system consist of:
A. Heart, arteries, and skeletal tissue
B. Heart, lungs, veins, and capillaries
C. Heart, arteries, veins, and capillaries
D. Heart, arteries, veins, nerves, and capillaries - answer-C. Heart, arteries, veins,
nerves, and capilles
2. What are 2 major divisions of the cardiovascular system?
A. Pulmonary Circuit-right side of the heart carries blood to lungs for gas exchange,
Systemic Circuit- right side of heart supplies blood to all organs of the body
B. Pulmonary Circuit- right of the heart carries blood to lungs for gas exchange,
Systemic Circuit- left side of heart supplies blood to all organs of the body
C. Pulmonary Circuit -left of the heart carries blood to lungs for oxygen exchange,
Systemic Circuit- right side of heart supplies blood to all organs of the body
D. Pulmonary Circuit- left of the heart carries blood to lungs in exchange for oxygen,
Systemic Circuit-left side of heart supplies blood to all organs of the body - answer-B.
Pulmonary Circuit- right of the heart carries blood to lungs for gas exchange, Systemic
Circuit- left side of heart supplies blood to all organs of the body
3. Heart Position and Shape: Which statement is TRUE?
A. Heart is located in the pericardium, Base of the heart is the broad inferior portion of
the heart, Apex of the heart is the superior end, tilts to the left, tapers to point
B. Heart is located in the pericardium, Base of the heart is the broad superior portion of
the heart, Apex of the heart is the inferior end, tilts to the left, tapers to point
,C. Heart is located in the mediastinum, Base of the heart is the inferior portion of heart,
Apex of the heart is the superior end, tilts to the right, tapers to point
D. Heart is located in the mediastinum, Base of the heart is the broad superior portion
of heart, Apex of the heart is the inferior end, tilts to the left, tapers to point - answer-D.
Heart is located in the mediastinum, Base of the heart is the broad superior portion of
heart, Apex of the heart is the inferior end, tilts to the left, tapers to point
4. What consist of the membrane around the heart that allows the heart to beat with?
A. Pericardium consists of the membranes around the heart to beat with minimal
friction, provides room for the heart to expand but resists excessive expansion
B. Pericardium consists of the membrane around the heart to beat with maximum
friction, provides room for the heart to constrict but resists excessive expansion
C. Mediastinum consists of the membranes around the heart to beat with minimal
friction, provides room for the heart to expand but extend to excessive expansion
D. Mediastinum consists of the membranes around the heart to beat with maximum
friction, provides room for heart to constrict but extend to excessive expansion -
answer-A. Pericardium consists of the membranes around the heart to beat with
minimal friction, provides room for the heart to expand but resists excessive expansion
5. The Percardail Sac is also known as what and has two layers?
A. Parietal pericardium, -Fibrous layer: inner, soft layer, fibrous layer of CT, -Serous
layer: inner, thin, rough., moist membrane
B. Parietal pericardium, -Fibrous layer: outer, tough layer, fibrous layer of CT, -Serous
layer: inner, thin, smooth., dry membrane
C. Parietal pericardium, -Fibrous layer: inner, soft layer, fibrous layer of CT, -Serous
layer: inner, thin, rough., moist membrane
D. Parietal pericardium, -Fibrous layer: outer, tough, fibrous layer of CT, -Serous layer:
inner, thin, smooth., moist membrane - answer-D. Parietal pericardium, -Fibrous layer:
outer, tough, fibrous layer of CT, -Serous layer: inner, thin, smooth., moist membrane
6. Differentriate between Pericardial Cavity and Visceral Pericardium?
,A. Pericardium (AKA the epicardium) is the thin, smooth, moist serous layer that covers
heart surface. Visceral Pericardium is the space between heart and pericardial sac that
is filled with pericardial fluid that acts as a lubricant.
B. Pericardial cavity is the space between heart and pericardial sac that is filled with
pericardial fluid that acts as a lubricant. Visceral Pericardium ( AKAthe epicardium) is
the sthin, smooth, moist serous layer that covers heart surface.
C. Pericardium (AKA the epicardium) is the thick, rough, moist serous layer that covers
heart surface. Visceral Pericardium is the space between heart and pericardial sac that
is filled with pericardial fluid that act as a lubricant.
D. Pericardial cavity is the space between heart and pericardial sac that is filled with
pericardial fluid that acts as a lobe. Visceral Pericardi - answer-B. Pericardial cavity is
the space between heart and pericardial sac that is filled with pericardial fluid that acts
as a lubricant. Visceral Pericardium ( AKAthe epicardium) is the thin, smooth, moist
serous layer that covers heart surface.
7. What are the 3 Layers of the Heart Wall?
A. Epicardium(Visceral pericardium), Myocardium-thick layer of cardiac muscle -fibrous
skeleton is a network of collagen fibers and elastic fibers woven in between the cardiac
muscle cells that provide structural support and elasticity that provides attachment for
cardiac muscle cells as well as a nonconductor important in coordinating contractile
activities, Endocardium -smooth inner lining of simple squamous epithelium that is
equivalent to the lining of blood vessels
B. Epicardium(Peripheral pericardium), Myocardium-thick layer of cardiac muscle -
fibrous skeleton is a network of collagen fibers and elastic fibers woven in between the
cardiac muscle cells that provide structural support and elasticity that provides
attachment for skeletal muscle cells as well as a nonconductor important in
coordinating contractile activities, Endocardium -smooth inner lining of simple squ -
answer-A. Epicardium(Visceral pericardium), Myocardium-thick layer of cardiac muscle
-fibrous skeleton is a network of collagen fibers and elastic fibers woven in between the
cardiac muscle cells that provide structural support and elasticity that provides
attachment for cardiac muscle cells as well as a nonconductor important in
coordinating contractile activities, Endocardium -smooth inner lining of simple
squamous epithelium that is equivalent to the lining of blood vessels
8. What is Bacteria Endocarditis?
, A. is an infection caused by white blood cells that invade the bloodstream and settle in
the heart lining, a heart valve or a blood vessel.
B. is an infection caused by antibodies that enter the bloodstream and settle in the
heart lining, a heart valve or a blood vessel
C. is an infection caused by bacteria that enter the bloodstream and settle in the heart
lining, a heart valve or a blood vessel
D. is an infection caused by swelling that constricts the bloodstream and settle in the
heart lining, a heart valve or a blood vessel - answer-C. is an infection caused by
bacteria that enter the bloodstream and settle in the heart lining, a heart valve or a
blood vessel
9. What is a Heart sounds, Auscultation, and describe (S1), (S2), (S3)?
A. Heart sounds are due to turbulent flow of blood as heart valves close. Auscultation is
listening to sounds made by the body. (S1) is the first heart sound that is louder and
longer, "LUBB", occurs when the AV valves close. (S2) is the second heart sound that is
softer and sharper, "DUPP'', occurs when the semilunar valves close. (S3) a third heart
sound is rarely audible in people older than 30 and is known as a triple rhythm or gallop.
B. Heart sounds are due to turbulent flow of blood as heart valves opening. Auscultation
is listening to sounds made by the Heart. (S1) is the first heart sound that is louder and
longer, "LUBB", occurs when the AV valves close. (S2) is the second heart sound that is
softer and sharper, "DUPP'', occurs when the semilunar valves close. (S3) a third heart
sound is rarely audible in people older than 30 and is kno - answer-A. Heart sounds are
due to turbulent flow of blood as heart valves close. Auscultation is listening to sounds
made by the body. (S1) is the first heart sound that is louder and longer, "LUBB", occurs
when the AV valves close. (S2) is the second heart sound that is softer and sharper,
"DUPP'', occurs when the semilunar valves close. (S3) a third heart sound is rarely
audible in people older than 30 and is known as a triple rhythm or gallop.
10. What is a Cardiac Cycle?
A. One Cardiac cycle is the complete relaxation (systole) and contraction (distole) of all
4 chambers of the heart followed by a brief period of inactivity
B. One Cardiac cycle is the complete contraction (systole) and relaxation (distole) of all
4 chambers of the heart followed by a brief period of inactivity
C. One Cardiac cycle is the complete relaxation (systole) and contraction (distole) of all
2 chambers of the heart followed by a brief period of inactivity
QUESTIONS AND VERIFIED
ANSWERS GRADED A+ 2026
The Heart chapter 19 & 20 - answer-Study
1. What does the cardiac system consist of:
A. Heart, arteries, and skeletal tissue
B. Heart, lungs, veins, and capillaries
C. Heart, arteries, veins, and capillaries
D. Heart, arteries, veins, nerves, and capillaries - answer-C. Heart, arteries, veins,
nerves, and capilles
2. What are 2 major divisions of the cardiovascular system?
A. Pulmonary Circuit-right side of the heart carries blood to lungs for gas exchange,
Systemic Circuit- right side of heart supplies blood to all organs of the body
B. Pulmonary Circuit- right of the heart carries blood to lungs for gas exchange,
Systemic Circuit- left side of heart supplies blood to all organs of the body
C. Pulmonary Circuit -left of the heart carries blood to lungs for oxygen exchange,
Systemic Circuit- right side of heart supplies blood to all organs of the body
D. Pulmonary Circuit- left of the heart carries blood to lungs in exchange for oxygen,
Systemic Circuit-left side of heart supplies blood to all organs of the body - answer-B.
Pulmonary Circuit- right of the heart carries blood to lungs for gas exchange, Systemic
Circuit- left side of heart supplies blood to all organs of the body
3. Heart Position and Shape: Which statement is TRUE?
A. Heart is located in the pericardium, Base of the heart is the broad inferior portion of
the heart, Apex of the heart is the superior end, tilts to the left, tapers to point
B. Heart is located in the pericardium, Base of the heart is the broad superior portion of
the heart, Apex of the heart is the inferior end, tilts to the left, tapers to point
,C. Heart is located in the mediastinum, Base of the heart is the inferior portion of heart,
Apex of the heart is the superior end, tilts to the right, tapers to point
D. Heart is located in the mediastinum, Base of the heart is the broad superior portion
of heart, Apex of the heart is the inferior end, tilts to the left, tapers to point - answer-D.
Heart is located in the mediastinum, Base of the heart is the broad superior portion of
heart, Apex of the heart is the inferior end, tilts to the left, tapers to point
4. What consist of the membrane around the heart that allows the heart to beat with?
A. Pericardium consists of the membranes around the heart to beat with minimal
friction, provides room for the heart to expand but resists excessive expansion
B. Pericardium consists of the membrane around the heart to beat with maximum
friction, provides room for the heart to constrict but resists excessive expansion
C. Mediastinum consists of the membranes around the heart to beat with minimal
friction, provides room for the heart to expand but extend to excessive expansion
D. Mediastinum consists of the membranes around the heart to beat with maximum
friction, provides room for heart to constrict but extend to excessive expansion -
answer-A. Pericardium consists of the membranes around the heart to beat with
minimal friction, provides room for the heart to expand but resists excessive expansion
5. The Percardail Sac is also known as what and has two layers?
A. Parietal pericardium, -Fibrous layer: inner, soft layer, fibrous layer of CT, -Serous
layer: inner, thin, rough., moist membrane
B. Parietal pericardium, -Fibrous layer: outer, tough layer, fibrous layer of CT, -Serous
layer: inner, thin, smooth., dry membrane
C. Parietal pericardium, -Fibrous layer: inner, soft layer, fibrous layer of CT, -Serous
layer: inner, thin, rough., moist membrane
D. Parietal pericardium, -Fibrous layer: outer, tough, fibrous layer of CT, -Serous layer:
inner, thin, smooth., moist membrane - answer-D. Parietal pericardium, -Fibrous layer:
outer, tough, fibrous layer of CT, -Serous layer: inner, thin, smooth., moist membrane
6. Differentriate between Pericardial Cavity and Visceral Pericardium?
,A. Pericardium (AKA the epicardium) is the thin, smooth, moist serous layer that covers
heart surface. Visceral Pericardium is the space between heart and pericardial sac that
is filled with pericardial fluid that acts as a lubricant.
B. Pericardial cavity is the space between heart and pericardial sac that is filled with
pericardial fluid that acts as a lubricant. Visceral Pericardium ( AKAthe epicardium) is
the sthin, smooth, moist serous layer that covers heart surface.
C. Pericardium (AKA the epicardium) is the thick, rough, moist serous layer that covers
heart surface. Visceral Pericardium is the space between heart and pericardial sac that
is filled with pericardial fluid that act as a lubricant.
D. Pericardial cavity is the space between heart and pericardial sac that is filled with
pericardial fluid that acts as a lobe. Visceral Pericardi - answer-B. Pericardial cavity is
the space between heart and pericardial sac that is filled with pericardial fluid that acts
as a lubricant. Visceral Pericardium ( AKAthe epicardium) is the thin, smooth, moist
serous layer that covers heart surface.
7. What are the 3 Layers of the Heart Wall?
A. Epicardium(Visceral pericardium), Myocardium-thick layer of cardiac muscle -fibrous
skeleton is a network of collagen fibers and elastic fibers woven in between the cardiac
muscle cells that provide structural support and elasticity that provides attachment for
cardiac muscle cells as well as a nonconductor important in coordinating contractile
activities, Endocardium -smooth inner lining of simple squamous epithelium that is
equivalent to the lining of blood vessels
B. Epicardium(Peripheral pericardium), Myocardium-thick layer of cardiac muscle -
fibrous skeleton is a network of collagen fibers and elastic fibers woven in between the
cardiac muscle cells that provide structural support and elasticity that provides
attachment for skeletal muscle cells as well as a nonconductor important in
coordinating contractile activities, Endocardium -smooth inner lining of simple squ -
answer-A. Epicardium(Visceral pericardium), Myocardium-thick layer of cardiac muscle
-fibrous skeleton is a network of collagen fibers and elastic fibers woven in between the
cardiac muscle cells that provide structural support and elasticity that provides
attachment for cardiac muscle cells as well as a nonconductor important in
coordinating contractile activities, Endocardium -smooth inner lining of simple
squamous epithelium that is equivalent to the lining of blood vessels
8. What is Bacteria Endocarditis?
, A. is an infection caused by white blood cells that invade the bloodstream and settle in
the heart lining, a heart valve or a blood vessel.
B. is an infection caused by antibodies that enter the bloodstream and settle in the
heart lining, a heart valve or a blood vessel
C. is an infection caused by bacteria that enter the bloodstream and settle in the heart
lining, a heart valve or a blood vessel
D. is an infection caused by swelling that constricts the bloodstream and settle in the
heart lining, a heart valve or a blood vessel - answer-C. is an infection caused by
bacteria that enter the bloodstream and settle in the heart lining, a heart valve or a
blood vessel
9. What is a Heart sounds, Auscultation, and describe (S1), (S2), (S3)?
A. Heart sounds are due to turbulent flow of blood as heart valves close. Auscultation is
listening to sounds made by the body. (S1) is the first heart sound that is louder and
longer, "LUBB", occurs when the AV valves close. (S2) is the second heart sound that is
softer and sharper, "DUPP'', occurs when the semilunar valves close. (S3) a third heart
sound is rarely audible in people older than 30 and is known as a triple rhythm or gallop.
B. Heart sounds are due to turbulent flow of blood as heart valves opening. Auscultation
is listening to sounds made by the Heart. (S1) is the first heart sound that is louder and
longer, "LUBB", occurs when the AV valves close. (S2) is the second heart sound that is
softer and sharper, "DUPP'', occurs when the semilunar valves close. (S3) a third heart
sound is rarely audible in people older than 30 and is kno - answer-A. Heart sounds are
due to turbulent flow of blood as heart valves close. Auscultation is listening to sounds
made by the body. (S1) is the first heart sound that is louder and longer, "LUBB", occurs
when the AV valves close. (S2) is the second heart sound that is softer and sharper,
"DUPP'', occurs when the semilunar valves close. (S3) a third heart sound is rarely
audible in people older than 30 and is known as a triple rhythm or gallop.
10. What is a Cardiac Cycle?
A. One Cardiac cycle is the complete relaxation (systole) and contraction (distole) of all
4 chambers of the heart followed by a brief period of inactivity
B. One Cardiac cycle is the complete contraction (systole) and relaxation (distole) of all
4 chambers of the heart followed by a brief period of inactivity
C. One Cardiac cycle is the complete relaxation (systole) and contraction (distole) of all
2 chambers of the heart followed by a brief period of inactivity
