Question 1

Snakes, lizards, and turtles can bypass the lung circuit and pump all blood around the body because of the incomplete division of their _______.

Accepted Answer

The answer of Snakes, lizards, and turtles can bypass the...

Question 2

Which of the following statements about veins is true?

Accepted Answer

A)  The veins may hold as much as 60 percent of total blood volume at any one time. 
B)  Veins are capacitance vessels. 
C)  The walls of veins are more expandable than the walls of arteries. 
D)  Veins are resistance vessels. 
E)  a, b, and c 
A)  The veins may hold as much as 60 percent of total blood volume at any one time. 
B)  Veins are capacitance vessels. 
C)  The walls of veins are more expandable than the walls of arteries. 
D)  Veins are resistance vessels. 
E)  a, b, and c

Question 3

The timing of the spread of the action potential from atrium to ventricle is controlled by the

Accepted Answer

A)  sinoatrial node. 
B)  atrioventricular node. 
C)  Purkinje fibers. 
D)  bundle of His. 
E)  ventricular mass. 
A)  sinoatrial node. 
B)  atrioventricular node. 
C)  Purkinje fibers. 
D)  bundle of His. 
E)  ventricular mass.

Question 4

Which of the following contributes to increased blood flow to tissues?

Accepted Answer

A)  Low O2 concentration 
B)  Increased lactate concentration 
C)  High CO2 concentration 
D)  Both a and b 
E)  All of the above 
A)  Low O2 concentration 
B)  Increased lactate concentration 
C)  High CO2 concentration 
D)  Both a and b 
E)  All of the above

Question 5

Blood moves through the arteries and veins at a faster velocity than the blood moving through the capillaries. What is the cause and effect of blood slowing down as it moves through the capillaries?

Accepted Answer

Blood is pumped from the heart into the

Question 6

In animals with a closed circulatory system, the liquid around the body cells is called

Accepted Answer

A)  blood plasma. 
B)  interstitial fluid. 
C)  mesolymph. 
D)  hemolymph. 
E)  aguavida. 
A)  blood plasma. 
B)  interstitial fluid. 
C)  mesolymph. 
D)  hemolymph. 
E)  aguavida.

Question 7

In the fish circulatory system, blood

Accepted Answer

A)  moves from the muscular ventricle to the gills. 
B)  entering the aorta is under high pressure. 
C)  leaving the heart moves to body tissues. 
D)  leaving the gills is under high pressure. 
E)  is received from the body into a muscular atrium. 
A)  moves from the muscular ventricle to the gills. 
B)  entering the aorta is under high pressure. 
C)  leaving the heart moves to body tissues. 
D)  leaving the gills is under high pressure. 
E)  is received from the body into a muscular atrium.

Question 8

The cardiac cycle has two phases:

Accepted Answer

A)  diastole in which the ventricles contract, and systole in which the ventricles relax. 
B)  systole in which the ventricles contract, and diastole in which the ventricles relax. 
C)  systole in which the atria contract, and diastole in which the ventricles contract. 
D)  diastole in which the atria relax, and systole in which the ventricles relax. 
E)  systole in which the atria relax, and diastole in which the atria contract. 
A)  diastole in which the ventricles contract, and systole in which the ventricles relax. 
B)  systole in which the ventricles contract, and diastole in which the ventricles relax. 
C)  systole in which the atria contract, and diastole in which the ventricles contract. 
D)  diastole in which the atria relax, and systole in which the ventricles relax. 
E)  systole in which the atria relax, and diastole in which the atria contract.

Question 9

Which of the following structures is/are not part of the circulatory system of an earthworm?

Accepted Answer

A)  Contractile vessels 
B)  A major dorsal vessel 
C)  Capillary beds in the lungs 
D)  Capillary beds in each segment 
E)  A major ventral vessel 
A)  Contractile vessels 
B)  A major dorsal vessel 
C)  Capillary beds in the lungs 
D)  Capillary beds in each segment 
E)  A major ventral vessel

Question 10

Blood cells are created from _______ in the bone marrow.

Accepted Answer

The answer of Blood cells are created from _______ in...

Exam 50: Circulatory Systems

Snakes, lizards, and turtles can bypass the lung circuit and pump all blood around the body because of the incomplete division of their _______.

Which of the following statements about veins is true?

The timing of the spread of the action potential from atrium to ventricle is controlled by the

Which of the following contributes to increased blood flow to tissues?

Blood moves through the arteries and veins at a faster velocity than the blood moving through the capillaries. What is the cause and effect of blood slowing down as it moves through the capillaries?

In animals with a closed circulatory system, the liquid around the body cells is called

In the fish circulatory system, blood

The cardiac cycle has two phases:

Which of the following structures is/are not part of the circulatory system of an earthworm?

Blood cells are created from _______ in the bone marrow.

Studying Life

Small Molecules and the Chemistry of Life

Proteins, Carbohydrates, and Lipids

Nucleic Acids and the Origin of Life

Cells: the Working Units of Life

Cell Membranes

Cell Signaling and Communication

Energy, Enzymes, and Metabolism

Pathways That Harvest Chemical Energy

Photosynthesis: Energy From Sunlight

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

Dna and Its Role in Heredity

From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

Regulation of Gene Expression

Genomes

Recombinent Dna and Biotechnology

Differential Gene Expression in Development

Development and Evolutionary Change

Evidence and Mechanisms of Evolution

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Species and Their Formation

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The History of Life on Earth

Bacteria and Archaea: the Prokaryotic Domains

The Origin and Diversification of Eukaryotes

Plants Without Seeds: From Water to Land

The Evolution of Seed Plants

Fungi: Recyclers, Pathogens, Parasites, and Plant Partners

Animal Origins and the Evolution of Body Plans

Protostome Animals

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The Plant Body

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Reproduction in Flowering Plants

Plant Responses to Environmental Challenges

Physiology, Homeostasis, and Temperature Regulation

Animal Hormones

Immunology: Animal Defense Systems

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Animal Development

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The Mammalian Nervous System: Structure and Higher Function

Musculoskeletal Systems

Gas Exchange in Animals

Nutrition, Digestion, and Absorption

Salt and Water Balance and Nitrogen

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