Question 1

When contrasting arteries and veins, which of the following statements is true?

Accepted Answer

A)  Veins have thicker walls than arteries. 
B)  Arteries have a thicker tunica media than veins. 
C)  Veins have a tunica media, while arteries do not. 
D)  Arteries have valves, but veins do not. 
E)  Arteries have smooth muscle in their walls, but veins do not. 
A)  Veins have thicker walls than arteries. 
B)  Arteries have a thicker tunica media than veins. 
C)  Veins have a tunica media, while arteries do not. 
D)  Arteries have valves, but veins do not. 
E)  Arteries have smooth muscle in their walls, but veins do not.

Question 2

________ is a measure of the force exerted by blood against the blood vessel walls.

Accepted Answer

The answer of ________ is a measure of the force...

Question 3

A vein responsible for draining blood from the upper limb is the ________ vein.

Accepted Answer

A)  azygos 
B)  portal 
C)  cephalic 
D)  peroneal 
E)  common iliac 
A)  azygos 
B)  portal 
C)  cephalic 
D)  peroneal 
E)  common iliac

Question 4

The chemoreceptor reflexes help maintain homeostasis

Accepted Answer

A)  under normal conditions. 
B)  when CO2 levels increase. 
C)  when stimulated by changes in blood osmotic pressure. 
D)  when epinephrine levels increase. 
E)  when H+ concentrations decrease. 
A)  under normal conditions. 
B)  when CO2 levels increase. 
C)  when stimulated by changes in blood osmotic pressure. 
D)  when epinephrine levels increase. 
E)  when H+ concentrations decrease.

Question 5

As viscosity of the blood increases,

Accepted Answer

A)  the pressure required to force it to flow increases. 
B)  the pressure required to force it to flow decreases. 
C)  the fluid becomes thinner. 
D)  the hematocrit decreases. 
E)  the flow does not change. 
A)  the pressure required to force it to flow increases. 
B)  the pressure required to force it to flow decreases. 
C)  the fluid becomes thinner. 
D)  the hematocrit decreases. 
E)  the flow does not change.

Question 6

Match the term with the best description.
-Venules

Accepted Answer

A) Simple squamous epithelium of capillaries 
B) Drain capillary networks 
C) Regulate blood flow into capillaries 
D) Do not have fenestrae 
E) Bypass capillary beds 
A) Simple squamous epithelium of capillaries 
B) Drain capillary networks 
C) Regulate blood flow into capillaries 
D) Do not have fenestrae 
E) Bypass capillary beds

Question 7

The maintenance of blood flow by tissues is called ________.

Accepted Answer

The answer of The maintenance of blood flow by tissues...

Question 8

Use the following key to choose the most correct answer.
-(1) Plasma volume when ADH levels increase
(2) Plasma volume when ADH levels decrease

Accepted Answer

A) The first item is greater than the second item. 
B) The first item is less than the second item. 
C) The first item is equal or nearly equal to the second item. 
A) The first item is greater than the second item. 
B) The first item is less than the second item. 
C) The first item is equal or nearly equal to the second item.

Question 9

Which of the following is NOT a long-term regulator of blood pressure?

Accepted Answer

A)  Renin-angiotensin-aldosterone mechanism 
B)  ADH mechanism 
C)  Stress-relaxation response 
D)  Oxygen tension response 
A)  Renin-angiotensin-aldosterone mechanism 
B)  ADH mechanism 
C)  Stress-relaxation response 
D)  Oxygen tension response

Question 10

Blood pressure is the

Accepted Answer

A)  product of the stroke volume times heart rate. 
B)  number of layers of blood in laminar flow models. 
C)  measure of force blood exerts against blood vessel walls. 
D)  viscosity of the blood and resistance to blood flow. 
E)  measure of the volume of the blood. 
A)  product of the stroke volume times heart rate. 
B)  number of layers of blood in laminar flow models. 
C)  measure of force blood exerts against blood vessel walls. 
D)  viscosity of the blood and resistance to blood flow. 
E)  measure of the volume of the blood.

Question 11

Most of the exchange of nutrients and waste products that occurs between the blood and interstitial spaces occurs across the walls of the ________.

Accepted Answer

The answer of Most of the exchange of nutrients and...

Question 12

Match the term with the appropriate description.
-Varicose veins

Accepted Answer

A) A bulge (a weak spot) in the artery wall 
B) Degenerative changes in arteries 
C) An overstretching of the veins of the lower extremities 
D) Inflammation of the veins 
E) Small vessels that supply nutrients to large arteries 
A) A bulge (a weak spot) in the artery wall 
B) Degenerative changes in arteries 
C) An overstretching of the veins of the lower extremities 
D) Inflammation of the veins 
E) Small vessels that supply nutrients to large arteries

Question 13

Match the term with the appropriate description.
-Phlebitis

Accepted Answer

A) A bulge (a weak spot) in the artery wall 
B) Degenerative changes in arteries 
C) An overstretching of the veins of the lower extremities 
D) Inflammation of the veins 
E) Small vessels that supply nutrients to large arteries 
A) A bulge (a weak spot) in the artery wall 
B) Degenerative changes in arteries 
C) An overstretching of the veins of the lower extremities 
D) Inflammation of the veins 
E) Small vessels that supply nutrients to large arteries

Question 14

Sympathetic nerve fibers that innervate blood vessel walls are found primarily in the ________.

Accepted Answer

A)  tunica intima 
B)  tunica media 
C)  tunica adventitia 
D)  tunica externa 
E)  tunica interna 
A)  tunica intima 
B)  tunica media 
C)  tunica adventitia 
D)  tunica externa 
E)  tunica interna

Question 15

Which of the following thoracic organs is supplied by a parietal branch of the thoracic aorta?

Accepted Answer

A)  Heart 
B)  Lungs 
C)  Esophagus 
D)  Intercostal muscles 
E)  Thymus gland 
A)  Heart 
B)  Lungs 
C)  Esophagus 
D)  Intercostal muscles 
E)  Thymus gland

Question 16

Match the term with the appropriate description.
-Stroke

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 17

The central nervous system ischemic response

Accepted Answer

A)  is triggered by an increase in blood flow to the vasomotor center. 
B)  plays an important role in controlling blood pressure under emergency conditions. 
C)  is stimulated by a rise in O2. 
D)  is inhibited by a rise in the level of H+. 
E)  plays an important role in regulating blood pressure under normal conditions. 
A)  is triggered by an increase in blood flow to the vasomotor center. 
B)  plays an important role in controlling blood pressure under emergency conditions. 
C)  is stimulated by a rise in O2. 
D)  is inhibited by a rise in the level of H+. 
E)  plays an important role in regulating blood pressure under normal conditions.

Question 18

The ________ begins with capillaries in the abdominal viscera and ends with capillaries in the liver.

Accepted Answer

A)  superior mesenteric system 
B)  celiac system 
C)  hepatic portal system 
D)  hepatic vein 
E)  splenic system 
A)  superior mesenteric system 
B)  celiac system 
C)  hepatic portal system 
D)  hepatic vein 
E)  splenic system

Question 19

Resistance to blood flow is greatest in ________.

Accepted Answer

A)  arteries 
B)  arterioles 
C)  venules 
D)  veins 
E)  capillaries 
A)  arteries 
B)  arterioles 
C)  venules 
D)  veins 
E)  capillaries

Question 20

Peripheral chemoreceptors

Accepted Answer

A)  are located in the aortic and carotid bodies. 
B)  are sensitive to small changes in O2 levels in the blood. 
C)  monitor blood pressure. 
D)  are not sensitive to CO2 or H+ levels. 
E)  are not sensitive to changes in pH of the blood. 
A)  are located in the aortic and carotid bodies. 
B)  are sensitive to small changes in O2 levels in the blood. 
C)  monitor blood pressure. 
D)  are not sensitive to CO2 or H+ levels. 
E)  are not sensitive to changes in pH of the blood.

Exam 21: Cardiovascular System: Blood Vessels and Circulation

When contrasting arteries and veins, which of the following statements is true?

________ is a measure of the force exerted by blood against the blood vessel walls.

A vein responsible for draining blood from the upper limb is the ________ vein.

The chemoreceptor reflexes help maintain homeostasis

As viscosity of the blood increases,

Match the term with the best description. -Venules

The maintenance of blood flow by tissues is called ________.

Use the following key to choose the most correct answer. -(1) Plasma volume when ADH levels increase (2) Plasma volume when ADH levels decrease

Which of the following is NOT a long-term regulator of blood pressure?

Blood pressure is the

Most of the exchange of nutrients and waste products that occurs between the blood and interstitial spaces occurs across the walls of the ________.

Match the term with the appropriate description. -Varicose veins

Match the term with the appropriate description. -Phlebitis

Sympathetic nerve fibers that innervate blood vessel walls are found primarily in the ________.

Which of the following thoracic organs is supplied by a parietal branch of the thoracic aorta?

Match the term with the appropriate description. -Stroke

The central nervous system ischemic response

The ________ begins with capillaries in the abdominal viscera and ends with capillaries in the liver.

Resistance to blood flow is greatest in ________.

Peripheral chemoreceptors

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joint 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

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive System

Development, Growth, Aging, and Genetics

Filters