Question 1

Which two animals have no distinct circulatory system?

Accepted Answer

A)  grasshopper and fish 
B)  grasshopper and hydra 
C)  hydra and fish 
D)  sponge and fish 
E)  sponge and hydra 
A)  grasshopper and fish 
B)  grasshopper and hydra 
C)  hydra and fish 
D)  sponge and fish 
E)  sponge and hydra E

Question 2

The ____ are the smallest vessels that carry blood in the body.

Accepted Answer

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

Question 3

The two most abundant ions in plasma are ____.

Accepted Answer

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

Question 4

The function of heart valves is to ____.

Accepted Answer

A)  form blood cells 
B)  participate in immunity 
C)  prevent backflow of blood 
D)  prevent clot formation 
E)  push blood into the aorta 
A)  form blood cells 
B)  participate in immunity 
C)  prevent backflow of blood 
D)  prevent clot formation 
E)  push blood into the aorta

Question 5

In humans, blood cells are produced in the ____.

Accepted Answer

A)  bone marrow 
B)  heart 
C)  kidneys 
D)  liver 
E)  lymph nodes 
A)  bone marrow 
B)  heart 
C)  kidneys 
D)  liver 
E)  lymph nodes

Question 6

The evolution of the blood clotting mechanism is likely explained by ____.

Accepted Answer

A)  constant mutations 
B)  direct response to environmental factors 
C)  gene duplication 
D)  sharing of gene pools between species 
E)  inbreeding 
A)  constant mutations 
B)  direct response to environmental factors 
C)  gene duplication 
D)  sharing of gene pools between species 
E)  inbreeding

Question 7

In a resting human, a ventricle pump moves roughly ____ liter(s) of blood per minute.

Accepted Answer

A)  1 
B)  2 
C)  5 
D)  10 
E)  50 
A)  1 
B)  2 
C)  5 
D)  10 
E)  50

Question 8

The systemic circuit is complete when ____.

Accepted Answer

A)  oxygen-depleted blood collects in veins 
B)  oxygen-rich blood collects in veins 
C)  blood enters the pulmonary veins 
D)  blood enters the aorta 
E)  blood enters the right atrium 
A)  oxygen-depleted blood collects in veins 
B)  oxygen-rich blood collects in veins 
C)  blood enters the pulmonary veins 
D)  blood enters the aorta 
E)  blood enters the right atrium

Question 9

The "lub" heart sound represents ____.

Accepted Answer

A)  a heart murmur 
B)  closure of the atrioventricular valves 
C)  closure of the semilunar valves 
D)  hypertension 
E)  movement of actual heart muscle 
A)  a heart murmur 
B)  closure of the atrioventricular valves 
C)  closure of the semilunar valves 
D)  hypertension 
E)  movement of actual heart muscle

Question 10

Approximately ____ % of plasma is water.

Accepted Answer

A)  10 
B)  27 
C)  55 
D)  77 
E)  92 
A)  10 
B)  27 
C)  55 
D)  77 
E)  92

Question 11

Nitric oxide (NO) serves as a local signal for vasodilation because it ____.

Accepted Answer

A)  is broken down quickly 
B)  dissipates quickly 
C)  recycles rapidly in cells 
D)  counteracts the action of oxygen 
E)  blocks adrenergic receptors 
A)  is broken down quickly 
B)  dissipates quickly 
C)  recycles rapidly in cells 
D)  counteracts the action of oxygen 
E)  blocks adrenergic receptors

Question 12

Plasma makes up approximately ____ % of the total blood volume.

Accepted Answer

A)  10 
B)  25 
C)  50 
D)  75 
E)  90 
A)  10 
B)  25 
C)  50 
D)  75 
E)  90

Question 13

The baroreceptors are located in the ____.

Accepted Answer

A)  adrenal glands 
B)  brainstem 
C)  heart 
D)  erythrocytes 
E)  walls of blood vessels 
A)  adrenal glands 
B)  brainstem 
C)  heart 
D)  erythrocytes 
E)  walls of blood vessels

Question 14

Blood pressure is greatest in the ____.

Accepted Answer

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

Question 15

The sinoatrial node is located in the ____.

Accepted Answer

A)  left atrium 
B)  left ventricle 
C)  pulmonary artery 
D)  right atrium 
E)  right ventricle 
A)  left atrium 
B)  left ventricle 
C)  pulmonary artery 
D)  right atrium 
E)  right ventricle

Question 16

Match between columns
                        Premises: left ventricle
left atrium
left pulmonary veins
superior vena cava
right pulmonary veins
right ventricle
pulmonary arteries
septum
inferior vena cava
aorta

Accepted Answer

The Answer of I and K and L and E is...

Question 17

The main danger from deep vein thrombosis is ____.

Accepted Answer

A)  a clot breaking loose and moving elsewhere in the body 
B)  unsightly veins 
C)  loss of blood flow in the extremities 
D)  blood pooling below the heart 
E)  a clot dispersing without warning 
A)  a clot breaking loose and moving elsewhere in the body 
B)  unsightly veins 
C)  loss of blood flow in the extremities 
D)  blood pooling below the heart 
E)  a clot dispersing without warning

Question 18

Diffusion is slow over distances of a few millimeters, making it an unsuitable mechanism by which large animals exchange gases and nutrients between the external and internal environments.

Accepted Answer

A) True 
 B)False

Question 19

The ____ carries oxygenated blood.

Accepted Answer

A)  inferior vena cava 
B)  pulmonary artery 
C)  pulmonary vein 
D)  superior vena cava 
E)  lymphatic vessel 
A)  inferior vena cava 
B)  pulmonary artery 
C)  pulmonary vein 
D)  superior vena cava 
E)  lymphatic vessel

Question 20

An open circulatory system ____.

Accepted Answer

A)  contains blood in blood vessels 
B)  is composed of two circulatory systems 
C)  mixes hemolymph and interstitial fluids together 
D)  is more efficient than a closed system 
E)  opens directly to the outside 
A)  contains blood in blood vessels 
B)  is composed of two circulatory systems 
C)  mixes hemolymph and interstitial fluids together 
D)  is more efficient than a closed system 
E)  opens directly to the outside

Exam 44: The Circulatory System

Which two animals have no distinct circulatory system?

The ____ are the smallest vessels that carry blood in the body.

The two most abundant ions in plasma are ____.

The function of heart valves is to ____.

In humans, blood cells are produced in the ____.

The evolution of the blood clotting mechanism is likely explained by ____.

In a resting human, a ventricle pump moves roughly ____ liter(s) of blood per minute.

The systemic circuit is complete when ____.

The "lub" heart sound represents ____.

Approximately ____ % of plasma is water.

Nitric oxide (NO) serves as a local signal for vasodilation because it ____.

Plasma makes up approximately ____ % of the total blood volume.

The baroreceptors are located in the ____.

Blood pressure is greatest in the ____.

The sinoatrial node is located in the ____.

The main danger from deep vein thrombosis is ____.

Diffusion is slow over distances of a few millimeters, making it an unsuitable mechanism by which large animals exchange gases and nutrients between the external and internal environments.

The ____ carries oxygenated blood.

An open circulatory system ____.

Introduction to Biological Concepts and Research

Life, Chemistry, and Water

Biological Molecules: the Carbon Compounds of Life

Cells

Membranes and Transport

Energy, Enzymes, and Biological Reactions

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

Cell Division and Mitosis

Meiosis: the Cellular Basis of Sexual Reproduction

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Expression: From Dna to Protein

Regulation of Gene Expression

Bacterial and Viral Genetics

Dna Technology: Making and Using Genetically Altered Organisms, and Other Applications

Genomes and Proteomes

The Development of Evolutionary Thought

Microevolution: Genetic Changes Within Populations

Speciation

Paleobiology and Macroevolution

Systematic Biology: Phylogeny and Classification

The Origin of Life

Prokaryotes and Viruses

Protists

Seedless Plants

Seed Plants

Fungi

Animal Phylogeny, Acoelomates, and Protostomes

Deuterostomes: Vertebrates and Their Closest Relatives

The Plant Body

Transport in Plants

Plant Nutrition

Reproduction and Development in Flowering Plants

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Information Flow and the Neuron

Nervous Systems

Sensory Systems

The Endocrine System

Muscles, Bones, and Body Movements

Defenses Against Disease

Gas Exchange: the Respiratory System

Digestive Systems and Animal Nutrition

Regulating the Internal Environment: Osmoregulation, Excretion, and Thermoregulation

Animal Reproduction

Animal Development

Ecology and the Biosphere

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Biodiversity and Conservation Biology

Animal Behavior

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