BIO 171T Exam 2 – Heart, Blood Vessels & Lymphatic Tissues – Verified Questions
& Answers – 100% Exam-Focused – LAST UPDATED 2025
The heart beats approximately ________ times each day
100,000
The heart pumps approximately ________ liters of blood each day
8,000
The adult heart is roughly the size of
a man’s clenched fist
The structure that permits blood flow from the right atrium to the left atrium in the fetal
circulation is the
foramen ovale
Blood leaves the right ventricle by passing through the
pulmonary valve
The atrioventricular valves permit blood flow
in one direction only
Blood returning to the heart from the systemic circuit first enters the
right atrium
Blood returning to the heart from the pulmonary circuit first enters the
left atrium
The earlike extension of the atrium is the
auricle
The coronary sulcus is a groove that
marks the border between the atria and ventricles
In the middle of the thoracic cavity is a region occupied by the heart, great vessels, thymus,
esophagus, and trachea called the
mediastinum
The cusps (leaflets) of atrioventricular valves attach directly to
chordae tendineae
Contractions of the papillary muscles
prevent the atrioventricular valves from reversing into the atria
,The visceral pericardium is the same as the
epicardium
Most of the middle layer in the heart wall is composed of
cardiac muscle cells
The right ventricle pumps blood to the
right and left lungs
The left ventricle pumps blood to the
aorta
The right atrium receives blood from all of the following structures except the
pulmonary veins
Cardiac cells damaged by infarction will show all of the following except
an increase in metabolic activity
Coronary veins empty into the
right atrium
There are ________ pulmonary veins
4
Blood is supplied to the muscular wall of the left atrium by the
left coronary artery
The pulmonary valve prevents backward flow into the
right ventricle
The bicuspid or mitral valve is located
between the left atrium and left ventricle
The ________ valve prevents backward flow into the left atrium
bicuspid
The function of an atrium is to
collect blood then pump it into the ventricle
Compared to the right ventricle, the left ventricle has all the following characteristics except
pumps a greater volume
Which of the following are involved in the pulmonary circuit
right ventricle, pulmonary veins, aorta
,The right pulmonary veins carry ________ blood to the ________.
oxygenated; left atrium
The following is a list of vessels and structures that are associated with the heart. What is the correct order for
the flow of blood entering from the systemic circulation
1. right atrium
2. left atrium
3. right ventricle
4. left ventricle
5. venae cavae
6. aorta
7. pulmonary trunk
8. pulmonary veins
5,1,3,7,8,2,4,6
(venae cavae → right atrium → right ventricle → pulmonary trunk → pulmonary veins → left atrium → left
ventricle → aorta)
The pulmonary arteries carry blood to the
lungs
The pulmonary veins carry blood to the
heart
The foramen ovale in the fetal heart is located in the
interartrial septum
Blood is supplied to the myocardium by
the coronary arteries
The first blood vessels to branch from the aorta are the ________ arteries
coronary
The marginal branch and posterior interventricular branch are branches of the
right coronary artery
The circumflex branch and the anterior interventricular artery are branches of the
left coronary artery
The great and middle cardiac veins drain blood into the
coronary sinus
, The heart lies within the ________ cavity
pericardial
The superior portion of the heart where major blood vessels enter and exit is the
base
The inferior point of the heart is called the
apex
Pericardial fluid
is a lubricant between the heart and the pericardial sac
The ________ is shared by the two ventricles
interventricular septum
Muscular ridges on the inner surface of the ventricles are called
trabeculae carneae
Which of the following would decrease the velocity of blood flow
increased velocity
Which vessels have the thickest tunica media?
large arteries
Lymphatic vessels recover about ________ of the fluid filtered by capillaries
15%
Where is the greatest volume of blood found in the body
veins
In a normal ECG, the deflection that is generated by ventricular repolarization is called the________
T wave
Which of the following carry oxygen-poor blood
Venae cavae and pulmonary arteries
Lymph is similar to blood plasma, but very low in
proteins
Special lymphatic vessels, called lacteals, absorb dietary ________ that are not absorbed by theblood capillaries
lipids
What are the afferent vessels that carry blood back to the heart
veins
& Answers – 100% Exam-Focused – LAST UPDATED 2025
The heart beats approximately ________ times each day
100,000
The heart pumps approximately ________ liters of blood each day
8,000
The adult heart is roughly the size of
a man’s clenched fist
The structure that permits blood flow from the right atrium to the left atrium in the fetal
circulation is the
foramen ovale
Blood leaves the right ventricle by passing through the
pulmonary valve
The atrioventricular valves permit blood flow
in one direction only
Blood returning to the heart from the systemic circuit first enters the
right atrium
Blood returning to the heart from the pulmonary circuit first enters the
left atrium
The earlike extension of the atrium is the
auricle
The coronary sulcus is a groove that
marks the border between the atria and ventricles
In the middle of the thoracic cavity is a region occupied by the heart, great vessels, thymus,
esophagus, and trachea called the
mediastinum
The cusps (leaflets) of atrioventricular valves attach directly to
chordae tendineae
Contractions of the papillary muscles
prevent the atrioventricular valves from reversing into the atria
,The visceral pericardium is the same as the
epicardium
Most of the middle layer in the heart wall is composed of
cardiac muscle cells
The right ventricle pumps blood to the
right and left lungs
The left ventricle pumps blood to the
aorta
The right atrium receives blood from all of the following structures except the
pulmonary veins
Cardiac cells damaged by infarction will show all of the following except
an increase in metabolic activity
Coronary veins empty into the
right atrium
There are ________ pulmonary veins
4
Blood is supplied to the muscular wall of the left atrium by the
left coronary artery
The pulmonary valve prevents backward flow into the
right ventricle
The bicuspid or mitral valve is located
between the left atrium and left ventricle
The ________ valve prevents backward flow into the left atrium
bicuspid
The function of an atrium is to
collect blood then pump it into the ventricle
Compared to the right ventricle, the left ventricle has all the following characteristics except
pumps a greater volume
Which of the following are involved in the pulmonary circuit
right ventricle, pulmonary veins, aorta
,The right pulmonary veins carry ________ blood to the ________.
oxygenated; left atrium
The following is a list of vessels and structures that are associated with the heart. What is the correct order for
the flow of blood entering from the systemic circulation
1. right atrium
2. left atrium
3. right ventricle
4. left ventricle
5. venae cavae
6. aorta
7. pulmonary trunk
8. pulmonary veins
5,1,3,7,8,2,4,6
(venae cavae → right atrium → right ventricle → pulmonary trunk → pulmonary veins → left atrium → left
ventricle → aorta)
The pulmonary arteries carry blood to the
lungs
The pulmonary veins carry blood to the
heart
The foramen ovale in the fetal heart is located in the
interartrial septum
Blood is supplied to the myocardium by
the coronary arteries
The first blood vessels to branch from the aorta are the ________ arteries
coronary
The marginal branch and posterior interventricular branch are branches of the
right coronary artery
The circumflex branch and the anterior interventricular artery are branches of the
left coronary artery
The great and middle cardiac veins drain blood into the
coronary sinus
, The heart lies within the ________ cavity
pericardial
The superior portion of the heart where major blood vessels enter and exit is the
base
The inferior point of the heart is called the
apex
Pericardial fluid
is a lubricant between the heart and the pericardial sac
The ________ is shared by the two ventricles
interventricular septum
Muscular ridges on the inner surface of the ventricles are called
trabeculae carneae
Which of the following would decrease the velocity of blood flow
increased velocity
Which vessels have the thickest tunica media?
large arteries
Lymphatic vessels recover about ________ of the fluid filtered by capillaries
15%
Where is the greatest volume of blood found in the body
veins
In a normal ECG, the deflection that is generated by ventricular repolarization is called the________
T wave
Which of the following carry oxygen-poor blood
Venae cavae and pulmonary arteries
Lymph is similar to blood plasma, but very low in
proteins
Special lymphatic vessels, called lacteals, absorb dietary ________ that are not absorbed by theblood capillaries
lipids
What are the afferent vessels that carry blood back to the heart
veins
