Lecture 3: Blood Vessels
1/47 Questions
Information: The relative amount of blood entering a capillary bed is regulated by chemical conditions
and arteriolar vasomotor nerve fibersStatement: When you are relaxing on the couch after dinner, the
precapillary sphincters in the capillary bed relaxes to allow blood flow to the true capillaries of you
gastrointestinal organs to receive the breakdown products of digestion
True
False
Start
Blood Vessels Quizzes & Trivia
About This Quiz
This quiz, titled 'Lecture 3: Blood Vessels', evaluates key aspects of the circulatory system, focusing on
the structure and function of blood vessels and lymphatic drainage. It covers topics such as venous
valves, lymphatic drainage, and pressures within capillaries, essential for students of anatomy and
physiology.
Quiz Preview
2.
The walls of veins can be much thinner than arterial walls without danger of bursting because the blood
pressure in veins is low
True
False
Correct Answer
,A. True
Explanation
Veins carry blood back to the heart at a lower pressure compared to arteries. This is because the blood
has already delivered oxygen and nutrients to the body's tissues and organs, so it has less force when
returning to the heart. As a result, the walls of veins can be much thinner and less muscular than arterial
walls without the risk of bursting. This is why the statement is true.
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3.
one of the function to the lymph node is...
Is the valve of the vein
Transport blood more rapidly
Immune system activation
Correct Answer
A. Immune system activation
Explanation
The lymph node plays a crucial role in the immune system activation. It acts as a filtering station for the
lymphatic system, where immune cells called lymphocytes are present. These lymphocytes help in
identifying and attacking foreign substances, such as bacteria or viruses, that enter the body. The lymph
nodes also produce and release antibodies, which are essential in fighting off infections. Therefore,
immune system activation is one of the main functions of the lymph node.
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4.
To calculate Cardiac output (CO), which is the amount of blood pumped by each ventricle in 1 min. The
formula is:CO = HR x SV
,True
False
Correct Answer
A. True
Explanation
The given statement is true. Cardiac output (CO) is calculated by multiplying the heart rate (HR), which is
the number of times the heart beats per minute, by the stroke volume (SV), which is the amount of
blood pumped by each ventricle with each heartbeat. Therefore, the formula CO = HR x SV is used to
calculate the cardiac output.
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5.
Venous valves are formed from folds of the turnica intima.
True
False
Correct Answer
A. True
Explanation
Venous valves are formed from folds of the tunica intima. This is true because the tunica intima, the
innermost layer of the blood vessel wall, contains specialized folds that form valves. These valves help to
prevent the backflow of blood in the veins, ensuring that blood flows in the correct direction towards
the heart.
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, 6.
Systemic veins and venules collectively hold what amount of the total blood volume throughout the
cardiovascular system? In %.
60%
50%
30%
40%
Correct Answer
A. 60%
Explanation
Systemic veins and venules collectively hold approximately 60% of the total blood volume throughout
the cardiovascular system. This is because veins and venules are responsible for returning deoxygenated
blood back to the heart from the body tissues. The majority of the blood volume is found in the systemic
circulation, which includes the veins and venules. Therefore, the correct answer is 60%.
Rate this question:
7.
The Brachiocephalic artery is an artery branching from the Aorta, that supplies the right arm, head and
neck
True
1/47 Questions
Information: The relative amount of blood entering a capillary bed is regulated by chemical conditions
and arteriolar vasomotor nerve fibersStatement: When you are relaxing on the couch after dinner, the
precapillary sphincters in the capillary bed relaxes to allow blood flow to the true capillaries of you
gastrointestinal organs to receive the breakdown products of digestion
True
False
Start
Blood Vessels Quizzes & Trivia
About This Quiz
This quiz, titled 'Lecture 3: Blood Vessels', evaluates key aspects of the circulatory system, focusing on
the structure and function of blood vessels and lymphatic drainage. It covers topics such as venous
valves, lymphatic drainage, and pressures within capillaries, essential for students of anatomy and
physiology.
Quiz Preview
2.
The walls of veins can be much thinner than arterial walls without danger of bursting because the blood
pressure in veins is low
True
False
Correct Answer
,A. True
Explanation
Veins carry blood back to the heart at a lower pressure compared to arteries. This is because the blood
has already delivered oxygen and nutrients to the body's tissues and organs, so it has less force when
returning to the heart. As a result, the walls of veins can be much thinner and less muscular than arterial
walls without the risk of bursting. This is why the statement is true.
Rate this question:
3.
one of the function to the lymph node is...
Is the valve of the vein
Transport blood more rapidly
Immune system activation
Correct Answer
A. Immune system activation
Explanation
The lymph node plays a crucial role in the immune system activation. It acts as a filtering station for the
lymphatic system, where immune cells called lymphocytes are present. These lymphocytes help in
identifying and attacking foreign substances, such as bacteria or viruses, that enter the body. The lymph
nodes also produce and release antibodies, which are essential in fighting off infections. Therefore,
immune system activation is one of the main functions of the lymph node.
Rate this question:
4.
To calculate Cardiac output (CO), which is the amount of blood pumped by each ventricle in 1 min. The
formula is:CO = HR x SV
,True
False
Correct Answer
A. True
Explanation
The given statement is true. Cardiac output (CO) is calculated by multiplying the heart rate (HR), which is
the number of times the heart beats per minute, by the stroke volume (SV), which is the amount of
blood pumped by each ventricle with each heartbeat. Therefore, the formula CO = HR x SV is used to
calculate the cardiac output.
Rate this question:
5.
Venous valves are formed from folds of the turnica intima.
True
False
Correct Answer
A. True
Explanation
Venous valves are formed from folds of the tunica intima. This is true because the tunica intima, the
innermost layer of the blood vessel wall, contains specialized folds that form valves. These valves help to
prevent the backflow of blood in the veins, ensuring that blood flows in the correct direction towards
the heart.
Rate this question:
, 6.
Systemic veins and venules collectively hold what amount of the total blood volume throughout the
cardiovascular system? In %.
60%
50%
30%
40%
Correct Answer
A. 60%
Explanation
Systemic veins and venules collectively hold approximately 60% of the total blood volume throughout
the cardiovascular system. This is because veins and venules are responsible for returning deoxygenated
blood back to the heart from the body tissues. The majority of the blood volume is found in the systemic
circulation, which includes the veins and venules. Therefore, the correct answer is 60%.
Rate this question:
7.
The Brachiocephalic artery is an artery branching from the Aorta, that supplies the right arm, head and
neck
True
