Question 1

What creates the pulse?

Accepted Answer

A)  the diastole of the ventricles 
B)  ejection of blood from the left ventricle into the aorta 
C)  the compliance of the arteries 
D)  constriction of the arterioles 
A)  the diastole of the ventricles 
B)  ejection of blood from the left ventricle into the aorta 
C)  the compliance of the arteries 
D)  constriction of the arterioles

Question 2

Which of the following would increase resistance to blood flow?

Accepted Answer

A)  a decrease in the length of the vessel 
B)  a decrease in the number of red blood cells 
C)  a decrease in blood viscosity 
D)  a decrease in the radius of the vessel 
E)  a decreased hematocrit 
A)  a decrease in the length of the vessel 
B)  a decrease in the number of red blood cells 
C)  a decrease in blood viscosity 
D)  a decrease in the radius of the vessel 
E)  a decreased hematocrit

Question 3

Which of the following would lead to relaxation of the precapillary sphincter?

Accepted Answer

A)  decreased tissue metabolism 
B)  decreased oxygen levels in tissue cells served by the capillary 
C)  decreased carbon dioxide concentration in the capillary bed 
D)  decreased lactic acid production by cells in the capillary bed 
E)  decreased nitric acid levels 
A)  decreased tissue metabolism 
B)  decreased oxygen levels in tissue cells served by the capillary 
C)  decreased carbon dioxide concentration in the capillary bed 
D)  decreased lactic acid production by cells in the capillary bed 
E)  decreased nitric acid levels

Question 4

Match the term with the appropriate description.
-necrotic tissue

Accepted Answer

A) dead tissue 
B) a floating clot 
C) sudden decreased blood supply to a part of the brain 
D) a stationary clot 
E) a localized area of dead cells resulting from ischemia 
A) dead tissue 
B) a floating clot 
C) sudden decreased blood supply to a part of the brain 
D) a stationary clot 
E) a localized area of dead cells resulting from ischemia

Question 5

A thrombus in the second branch (not including coronary arteries) off of the aortic arch would affect the flow of blood to the

Accepted Answer

A)  left side of the head and neck. 
B)  myocardium of the heart. 
C)  right side of the head and neck and right upper extremity. 
D)  left upper extremity. 
E)  right arm. 
A)  left side of the head and neck. 
B)  myocardium of the heart. 
C)  right side of the head and neck and right upper extremity. 
D)  left upper extremity. 
E)  right arm.

Question 6

When blood pressure increases, a number of events occur that return blood pressure to normal. Which of the following is one of the events that occurs after an increase in blood pressure?

Accepted Answer

A)  Baroreceptors are stimulated. 
B)  Action potential frequency to the cardioregulatory center of brain decreases. 
C)  Sympathetic stimulation of the heart increases. 
D)  Heart rate increases. 
E)  An increase in number of action potentials in the cardiac nerve. 
A)  Baroreceptors are stimulated. 
B)  Action potential frequency to the cardioregulatory center of brain decreases. 
C)  Sympathetic stimulation of the heart increases. 
D)  Heart rate increases. 
E)  An increase in number of action potentials in the cardiac nerve.

Question 7

Angiotensin II

Accepted Answer

A)  causes vasoconstriction. 
B)  stimulates the adrenal cortex to release ADH. 
C)  is released in response to high blood pressure. 
D)  is responsible for increasing urine output. 
E)  stimulates peripheral vasodilation. 
A)  causes vasoconstriction. 
B)  stimulates the adrenal cortex to release ADH. 
C)  is released in response to high blood pressure. 
D)  is responsible for increasing urine output. 
E)  stimulates peripheral vasodilation.

Question 8

Capillaries have the slowest velocity because

Accepted Answer

A)  the total cross-sectional area is the smallest. 
B)  the resistance is the greatest. 
C)  the total cross-sectional area is the largest. 
D)  their diameters are the smallest. 
A)  the total cross-sectional area is the smallest. 
B)  the resistance is the greatest. 
C)  the total cross-sectional area is the largest. 
D)  their diameters are the smallest.

Question 9

Epinephrine

Accepted Answer

A)  increases the heart rate but decreases the stroke volume. 
B)  causes vasodilation of coronary blood vessels. 
C)  causes vasoconstriction of blood vessels in skeletal muscle. 
D)  decreases red blood cell count. 
E)  decreases the force of contraction. 
A)  increases the heart rate but decreases the stroke volume. 
B)  causes vasodilation of coronary blood vessels. 
C)  causes vasoconstriction of blood vessels in skeletal muscle. 
D)  decreases red blood cell count. 
E)  decreases the force of contraction.

Question 10

From the heart to body tissues, which of the following sequences of vessels is correct?

Accepted Answer

A)  muscular artery, arteriole, elastic artery, capillary 
B)  arteriole, muscular artery, elastic artery, capillary 
C)  elastic artery, muscular artery, arteriole, capillary 
D)  elastic artery, arteriole, muscular artery, capillary 
E)  distributing artery, muscular artery, medium artery, capillary 
A)  muscular artery, arteriole, elastic artery, capillary 
B)  arteriole, muscular artery, elastic artery, capillary 
C)  elastic artery, muscular artery, arteriole, capillary 
D)  elastic artery, arteriole, muscular artery, capillary 
E)  distributing artery, muscular artery, medium artery, capillary

Question 11

Which of the following events would cause a decrease in mean arterial blood pressure?

Accepted Answer

A)  an increase in ADH production 
B)  release of atrial natriuretic factor 
C)  constriction of blood vessels in the skin 
D)  activation of the renin-angiotensin mechanism 
E)  an increase in aldosterone production 
A)  an increase in ADH production 
B)  release of atrial natriuretic factor 
C)  constriction of blood vessels in the skin 
D)  activation of the renin-angiotensin mechanism 
E)  an increase in aldosterone production

Question 12

What is the order of the blood vessels that a red blood cell would pass through as the blood leaves the heart, travels to a tissue, and then returns to the heart?

Accepted Answer

A)  arteriole, artery, capillary, vein, venule 
B)  capillary, arteriole, artery, vein, venule 
C)  artery, arteriole, capillary, venule, vein 
D)  vein, capillary, artery, arteriole, venule 
E)  artery, venule, capillary, arteriole, vein 
A)  arteriole, artery, capillary, vein, venule 
B)  capillary, arteriole, artery, vein, venule 
C)  artery, arteriole, capillary, venule, vein 
D)  vein, capillary, artery, arteriole, venule 
E)  artery, venule, capillary, arteriole, vein

Question 13

Which of the following hormones does NOT influence blood pressure?

Accepted Answer

A)  ADH 
B)  epinephrine 
C)  atrial natriuretic hormone 
D)  aldosterone 
E)  growth hormone 
A)  ADH 
B)  epinephrine 
C)  atrial natriuretic hormone 
D)  aldosterone 
E)  growth hormone

Question 14

A thrombus in the first branch (not including coronary arteries) off of the aortic arch might affect the flow of blood to which of the following structures?

Accepted Answer

A)  right arm 
B)  right side of the brain 
C)  left side of the brain 
D)  left arm 
E)  both the right arm and the right side of the brain 
A)  right arm 
B)  right side of the brain 
C)  left side of the brain 
D)  left arm 
E)  both the right arm and the right side of the brain

Question 15

In which of the following would you detect a weak pulse?

Accepted Answer

A)  hypertension 
B)  hemorrhagic shock 
C)  fluid excess 
D)  increased stroke volume 
E)  a healthy young person 
A)  hypertension 
B)  hemorrhagic shock 
C)  fluid excess 
D)  increased stroke volume 
E)  a healthy young person

Question 16

Match the term with the best description.
-vascular compliance

Accepted Answer

A) arteriosclerosis 
B) produced by turbulent blood flow 
C) blood flow is directly proportional to pressure differences and inversely proportional to resistance 
D) as pressure in a vessel decreases, the force holding it open decreases, and the vessel tends to collapse 
E) a characteristic of the venous system 
A) arteriosclerosis 
B) produced by turbulent blood flow 
C) blood flow is directly proportional to pressure differences and inversely proportional to resistance 
D) as pressure in a vessel decreases, the force holding it open decreases, and the vessel tends to collapse 
E) a characteristic of the venous system

Question 17

Which type of veins connect two primary capillary networks?

Accepted Answer

A)  portal veins 
B)  venous sinuses 
C)  venules 
D)  vaso vasorum 
A)  portal veins 
B)  venous sinuses 
C)  venules 
D)  vaso vasorum

Question 18

Match the term with the best description.
-Laplace's Law

Accepted Answer

A) arteriosclerosis 
B) produced by turbulent blood flow 
C) blood flow is directly proportional to pressure differences and inversely proportional to resistance 
D) as pressure in a vessel decreases, the force holding it open decreases, and the vessel tends to collapse 
E) a characteristic of the venous system 
A) arteriosclerosis 
B) produced by turbulent blood flow 
C) blood flow is directly proportional to pressure differences and inversely proportional to resistance 
D) as pressure in a vessel decreases, the force holding it open decreases, and the vessel tends to collapse 
E) a characteristic of the venous system

Question 19

Match the term with the best description.
-Korotkoff sounds

Accepted Answer

A) arteriosclerosis 
B) produced by turbulent blood flow 
C) blood flow is directly proportional to pressure differences and inversely proportional to resistance 
D) as pressure in a vessel decreases, the force holding it open decreases, and the vessel tends to collapse 
E) a characteristic of the venous system 
A) arteriosclerosis 
B) produced by turbulent blood flow 
C) blood flow is directly proportional to pressure differences and inversely proportional to resistance 
D) as pressure in a vessel decreases, the force holding it open decreases, and the vessel tends to collapse 
E) a characteristic of the venous system

Question 20

Which of the following statements about laminar blood flow is true?

Accepted Answer

A)  The innermost layer of blood moves at the lowest velocity. 
B)  Laminar blood flow occurs when blood flows past an area of constriction. 
C)  The outermost layer of blood experiences the greatest resistance to flow. 
D)  In laminar blood flow, the rapid rate of blood flow exceeds critical velocity. 
E)  It makes lots of different noises. 
A)  The innermost layer of blood moves at the lowest velocity. 
B)  Laminar blood flow occurs when blood flows past an area of constriction. 
C)  The outermost layer of blood experiences the greatest resistance to flow. 
D)  In laminar blood flow, the rapid rate of blood flow exceeds critical velocity. 
E)  It makes lots of different noises.

Exam 21: Cardiovascular System: Blood Vessels and Circulation

What creates the pulse?

Which of the following would increase resistance to blood flow?

Which of the following would lead to relaxation of the precapillary sphincter?

Match the term with the appropriate description. -necrotic tissue

A thrombus in the second branch (not including coronary arteries) off of the aortic arch would affect the flow of blood to the

When blood pressure increases, a number of events occur that return blood pressure to normal. Which of the following is one of the events that occurs after an increase in blood pressure?

Angiotensin II

Capillaries have the slowest velocity because

Epinephrine

From the heart to body tissues, which of the following sequences of vessels is correct?

Which of the following events would cause a decrease in mean arterial blood pressure?

What is the order of the blood vessels that a red blood cell would pass through as the blood leaves the heart, travels to a tissue, and then returns to the heart?

Which of the following hormones does NOT influence blood pressure?

A thrombus in the first branch (not including coronary arteries) off of the aortic arch might affect the flow of blood to which of the following structures?

In which of the following would you detect a weak pulse?

Match the term with the best description. -vascular compliance

Which type of veins connect two primary capillary networks?

Match the term with the best description. -Laplace's Law

Match the term with the best description. -Korotkoff sounds

Which of the following statements about laminar blood flow is true?

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Lymphatic System and Immunity

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Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolytes, and Acidbase Balance

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