Question 1

Thrombin is formed in a positive-feedback cycle.

Accepted Answer

A) True 
 B)False

Question 2

Arteries but not veins have elastic fibers in their walls.

Accepted Answer

A) True 
 B)False

Question 3

The dominant inorganic cation in blood is

Accepted Answer

A)  Na+ 
B)  Cl- 
C)  K+ 
D)  HCO3- 
E)  Ca2+ 
A)  Na+ 
B)  Cl- 
C)  K+ 
D)  HCO3- 
E)  Ca2+

Question 4

Although a grasshopper has a heart, it only functions in pumping blood when it's at rest because during activity blood is pumped by a _____ type pump.

Accepted Answer

A)  flagella 
B)  extrinsic 
C)  peristaltic muscle 
D)  chamber muscle 
E)  none of these. 
A)  flagella 
B)  extrinsic 
C)  peristaltic muscle 
D)  chamber muscle 
E)  none of these.

Question 5

A significant change in vertebrate hearts began when

Accepted Answer

A)  the ancestors of whales returned to the oceans. 
B)  flight evolved in birds. 
C)  reptiles moved onto land. 
D)  air-breathing fish evolved. 
E)  amphibians transitioned to life on land and in water. 
A)  the ancestors of whales returned to the oceans. 
B)  flight evolved in birds. 
C)  reptiles moved onto land. 
D)  air-breathing fish evolved. 
E)  amphibians transitioned to life on land and in water.

Question 6

Match each sentence with the most appropriate choice:
-Erythrocytes

Accepted Answer

A)  Hemolymph 
B)  Hageman factor 
C)  Oxygen transport 
D)  Parasympathetic neurotransmitter 
E)  Clotting
F) Sympathetic neurotransmitter
G) "good cholesterol"
H) Elasmobranchs
I) Copper
J) Iron 
A)  Hemolymph 
B)  Hageman factor 
C)  Oxygen transport 
D)  Parasympathetic neurotransmitter 
E)  Clotting
F) Sympathetic neurotransmitter
G) "good cholesterol"
H) Elasmobranchs
I) Copper
J) Iron

Question 7

Match each sentence with the most appropriate choice:
-Norepinephrine

Accepted Answer

A)  Hemolymph 
B)  Hageman factor 
C)  Oxygen transport 
D)  Parasympathetic neurotransmitter 
E)  Clotting
F) Sympathetic neurotransmitter
G) "good cholesterol"
H) Elasmobranchs
I) Copper
J) Iron 
A)  Hemolymph 
B)  Hageman factor 
C)  Oxygen transport 
D)  Parasympathetic neurotransmitter 
E)  Clotting
F) Sympathetic neurotransmitter
G) "good cholesterol"
H) Elasmobranchs
I) Copper
J) Iron

Question 8

Both thrombocytes and platelets are living cells but they are found in different
 organisms.

Accepted Answer

A) True 
 B)False

Question 9

Ventricular systole includes the periods of

Accepted Answer

A)  isometric contraction and ventricular ejection. 
B)  isovolumetric contraction and ventricular ejection. 
C)  isometric contraction and end-systolic volume. 
D)  isovolumetric contraction and end-systolic volume. 
E)  none of these 
A)  isometric contraction and ventricular ejection. 
B)  isovolumetric contraction and ventricular ejection. 
C)  isometric contraction and end-systolic volume. 
D)  isovolumetric contraction and end-systolic volume. 
E)  none of these

Question 10

Match each sentence with the most appropriate choice:
-Sinus venosus

Accepted Answer

A)  Hemolymph 
B)  Hageman factor 
C)  Oxygen transport 
D)  Parasympathetic neurotransmitter 
E)  Clotting
F) Sympathetic neurotransmitter
G) "good cholesterol"
H) Elasmobranchs
I) Copper
J) Iron 
A)  Hemolymph 
B)  Hageman factor 
C)  Oxygen transport 
D)  Parasympathetic neurotransmitter 
E)  Clotting
F) Sympathetic neurotransmitter
G) "good cholesterol"
H) Elasmobranchs
I) Copper
J) Iron

Question 11

While an individual is at rest about 20% of the total cardiac output goes to the kidneys.

Accepted Answer

A) True 
 B)False

Question 12

Match each sentence with the most appropriate choice:
-Hemacyanin

Accepted Answer

A)  Hemolymph 
B)  Hageman factor 
C)  Oxygen transport 
D)  Parasympathetic neurotransmitter 
E)  Clotting
F) Sympathetic neurotransmitter
G) "good cholesterol"
H) Elasmobranchs
I) Copper
J) Iron 
A)  Hemolymph 
B)  Hageman factor 
C)  Oxygen transport 
D)  Parasympathetic neurotransmitter 
E)  Clotting
F) Sympathetic neurotransmitter
G) "good cholesterol"
H) Elasmobranchs
I) Copper
J) Iron

Question 13

Which of the following decreases with increased muscular activity?

Accepted Answer

A)  venous return 
B)  mean arterial blood pressure 
C)  peripheral resistance 
D)  blood flow to brain 
E)  none of these. 
A)  venous return 
B)  mean arterial blood pressure 
C)  peripheral resistance 
D)  blood flow to brain 
E)  none of these.

Question 14

At the onset of ventricular diastole, the A-V valves close as a result of

Accepted Answer

A)  higher pressure in the atria relative to the ventricles. 
B)  higher pressure in the ventricles relative to the atria. 
C)  higher pressure in the arteries (pulmonary and aorta) relative to the ventricles. 
D)  higher pressure in the venae cavae relative to the atria. 
E)  contraction of the small muscles which attach to the valves. 
A)  higher pressure in the atria relative to the ventricles. 
B)  higher pressure in the ventricles relative to the atria. 
C)  higher pressure in the arteries (pulmonary and aorta) relative to the ventricles. 
D)  higher pressure in the venae cavae relative to the atria. 
E)  contraction of the small muscles which attach to the valves.

Question 15

Which of the following will cause local adjustments in an arteriole's radius and hence vessel diameter?

Accepted Answer

A)  decreased O2 
B)  increased K+ 
C)  increased O2 
D)  increased acid 
E)  all of these. 
A)  decreased O2 
B)  increased K+ 
C)  increased O2 
D)  increased acid 
E)  all of these.

Question 16

In a normal ECG, no separate wave is detected for atrial repolarization because

Accepted Answer

A)  the amount of atrial tissue is too little for the current to be detected by the ECG electrodes. 
B)  the time period between atrial depolarization and repolarization occurs too rapidly. 
C)  atrial repolarization and ventricular depolarization are simultaneous, and the expected wave is masked by the QRS complex. 
D)  None of these. 
A)  the amount of atrial tissue is too little for the current to be detected by the ECG electrodes. 
B)  the time period between atrial depolarization and repolarization occurs too rapidly. 
C)  atrial repolarization and ventricular depolarization are simultaneous, and the expected wave is masked by the QRS complex. 
D)  None of these.

Thrombin is formed in a positive-feedback cycle.

Arteries but not veins have elastic fibers in their walls.

The dominant inorganic cation in blood is

Although a grasshopper has a heart, it only functions in pumping blood when it's at rest because during activity blood is pumped by a _____ type pump.

A significant change in vertebrate hearts began when

Match each sentence with the most appropriate choice: -Erythrocytes

Match each sentence with the most appropriate choice: -Norepinephrine

Both thrombocytes and platelets are living cells but they are found in different organisms.

Ventricular systole includes the periods of

Match each sentence with the most appropriate choice: -Sinus venosus

While an individual is at rest about 20% of the total cardiac output goes to the kidneys.

Match each sentence with the most appropriate choice: -Hemacyanin

Which of the following decreases with increased muscular activity?

At the onset of ventricular diastole, the A-V valves close as a result of

Which of the following will cause local adjustments in an arteriole's radius and hence vessel diameter?

In a normal ECG, no separate wave is detected for atrial repolarization because

Homeostasis and Integration: The Foundations of Physiology

Cellular and Molecular Physiology

Membrane Physiology

Neuronal Physiology

Nervous Systems

Sensory Physiology

Endocrine Systems

Muscle Physiology

Defense Systems

Respiratory Systems

Excretory Systems

Fluid and Acid-Base Balance

Digestive Systems

Energy Balance and Thermal Physiology

Reproductive Systems

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Exam 9: Circulatory Systems

Thrombin is formed in a positive-feedback cycle.

Arteries but not veins have elastic fibers in their walls.

The dominant inorganic cation in blood is

Although a grasshopper has a heart, it only functions in pumping blood when it's at rest because during activity blood is pumped by a _____ type pump.

A significant change in vertebrate hearts began when

Match each sentence with the most appropriate choice: -Erythrocytes

Match each sentence with the most appropriate choice: -Norepinephrine

Both thrombocytes and platelets are living cells but they are found in different organisms.

Ventricular systole includes the periods of

Match each sentence with the most appropriate choice: -Sinus venosus

While an individual is at rest about 20% of the total cardiac output goes to the kidneys.

Match each sentence with the most appropriate choice: -Hemacyanin

Which of the following decreases with increased muscular activity?

At the onset of ventricular diastole, the A-V valves close as a result of

Which of the following will cause local adjustments in an arteriole's radius and hence vessel diameter?

In a normal ECG, no separate wave is detected for atrial repolarization because

Homeostasis and Integration: The Foundations of Physiology

Cellular and Molecular Physiology

Membrane Physiology

Neuronal Physiology

Nervous Systems

Sensory Physiology

Endocrine Systems

Muscle Physiology

Defense Systems

Respiratory Systems

Excretory Systems

Fluid and Acid-Base Balance

Digestive Systems

Energy Balance and Thermal Physiology

Reproductive Systems

Filters