Question 1

The composition of plasma is not fully known due to its complexity.

Accepted Answer

A) True 
 B)False

Question 2

Which structures contain valves?

Accepted Answer

A)  arteries and veins 
B)  arteries and heart 
C)  arteries, capillaries, and heart 
D)  lymph capillaries, arteries, and heart 
E)  lymph capillaries, veins, and heart 
A)  arteries and veins 
B)  arteries and heart 
C)  arteries, capillaries, and heart 
D)  lymph capillaries, arteries, and heart 
E)  lymph capillaries, veins, and heart

Question 3

The ____ are considered to be blood reservoirs.

Accepted Answer

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

Question 4

The ____ components of blood are involved in the formation of clots.

Accepted Answer

A)  albumin and fibrinogen 
B)  albumin and leukocytes 
C)  fibrinogen and erythrocytes 
D)  fibrinogen and platelets 
E)  platelets and albumin 
A)  albumin and fibrinogen 
B)  albumin and leukocytes 
C)  fibrinogen and erythrocytes 
D)  fibrinogen and platelets 
E)  platelets and albumin

Question 5

In the average human, the heart beats ____ times per minute.

Accepted Answer

A)  10 
B)  53 
C)  72 
D)  95 
E)  120 
A)  10 
B)  53 
C)  72 
D)  95 
E)  120

Question 6

Heart rate ____ in response to ____ arterial pressure.

Accepted Answer

A)  skips; fluctuations in 
B)  decreases; any change in 
C)  decreases; low 
D)  increases; high 
E)  increases; low 
A)  skips; fluctuations in 
B)  decreases; any change in 
C)  decreases; low 
D)  increases; high 
E)  increases; low

Question 7

Signals from the atrioventricular (AV) node are carried to the bottom of the heart by ____.

Accepted Answer

A)  the sinoatrial (SV) node 
B)  Purkinje fibers 
C)  pacemaker cells 
D)  neurogenic cells 
E)  the polarization node 
A)  the sinoatrial (SV) node 
B)  Purkinje fibers 
C)  pacemaker cells 
D)  neurogenic cells 
E)  the polarization node

Question 8

Which animal has a gastrovascular cavity?

Accepted Answer

A)  earthworm 
B)  fish 
C)  hydra 
D)  insect 
E)  sponge 
A)  earthworm 
B)  fish 
C)  hydra 
D)  insect 
E)  sponge

Question 9

When blood returns from the pulmonary circuit, it first enters the ____ chamber of the heart.

Accepted Answer

A)  left atrium 
B)  left ventricle 
C)  right atrium 
D)  right ventricle 
E)  both the left atrium and the right atrium 
A)  left atrium 
B)  left ventricle 
C)  right atrium 
D)  right ventricle 
E)  both the left atrium and the right atrium

Question 10

The ____ is an accessory system of vessels and organs that helps balance the fluid content of the blood and surrounding tissues.

Accepted Answer

A)  circulatory system 
B)  non-circulatory system 
C)  accessory vessel system 
D)  lymphatic system 
E)  heart 
A)  circulatory system 
B)  non-circulatory system 
C)  accessory vessel system 
D)  lymphatic system 
E)  heart

Question 11

A lymph capillary is composed of ____.

Accepted Answer

A)  a single layer of endothelial cells surrounded by collagen fibers 
B)  a single layer of endothelial cells surrounded by elastic fibers 
C)  collagen fibers only 
D)  elastic fibers only 
E)  a single layer of endothelial cells only 
A)  a single layer of endothelial cells surrounded by collagen fibers 
B)  a single layer of endothelial cells surrounded by elastic fibers 
C)  collagen fibers only 
D)  elastic fibers only 
E)  a single layer of endothelial cells only

Question 12

The ____ is a large branched artery that leads to all body regions except the lungs.

Accepted Answer

A)  pulmonary artery 
B)  coronary artery 
C)  aorta 
D)  superior vena cava 
E)  inferior vena cava 
A)  pulmonary artery 
B)  coronary artery 
C)  aorta 
D)  superior vena cava 
E)  inferior vena cava

Question 13

Atherosclerosis ____.

Accepted Answer

A)  decreases arterial lumen size 
B)  affects the diameter of veins 
C)  has no effect on arterial lumen size 
D)  increases arterial lumen size 
E)  presents many clinical symptoms immediately 
A)  decreases arterial lumen size 
B)  affects the diameter of veins 
C)  has no effect on arterial lumen size 
D)  increases arterial lumen size 
E)  presents many clinical symptoms immediately

Question 14

Fish have a circulatory system that contains two ventricles and two atria.

Accepted Answer

A) True 
 B)False

Question 15

Hypertension is a complication associated with ____.

Accepted Answer

A)  too little exercise 
B)  disorders involving the adrenal medulla 
C)  relaxing of blood vessel walls 
D)  stiffening of blood vessel walls 
E)  too much exercise 
A)  too little exercise 
B)  disorders involving the adrenal medulla 
C)  relaxing of blood vessel walls 
D)  stiffening of blood vessel walls 
E)  too much exercise

Question 16

Augustus Waller invented a machine that measures ____.

Accepted Answer

A)  blood pressure when the ventricles are contracting 
B)  blood pressure when the ventricles are relaxed 
C)  cardiac output 
D)  electrical activity of the brain 
E)  electrical activity of the heart 
A)  blood pressure when the ventricles are contracting 
B)  blood pressure when the ventricles are relaxed 
C)  cardiac output 
D)  electrical activity of the brain 
E)  electrical activity of the heart

Question 17

The ____ are the most numerous type of leukocyte in a healthy individual.

Accepted Answer

A)  basophils 
B)  eosinophils 
C)  lymphocytes 
D)  monocytes 
E)  neutrophils 
A)  basophils 
B)  eosinophils 
C)  lymphocytes 
D)  monocytes 
E)  neutrophils

Question 18

All organisms with circulatory systems have a heart.

Accepted Answer

A) True 
 B)False

Question 19

Coronary circulation involves ____.

Accepted Answer

A)  only the aorta 
B)  only the coronary arteries 
C)  only capillaries 
D)  the aorta and coronary arteries 
E)  the aorta, coronary arteries, and capillaries 
A)  only the aorta 
B)  only the coronary arteries 
C)  only capillaries 
D)  the aorta and coronary arteries 
E)  the aorta, coronary arteries, and capillaries

Question 20

Bulk flow in capillaries is driven by ____.

Accepted Answer

A)  gravity 
B)  concentration gradients 
C)  actual blood pressure 
D)  pumping of the heart 
E)  reciprocal exchange with oxygen 
A)  gravity 
B)  concentration gradients 
C)  actual blood pressure 
D)  pumping of the heart 
E)  reciprocal exchange with oxygen

Exam 44: The Circulatory System

The composition of plasma is not fully known due to its complexity.

Which structures contain valves?

The ____ are considered to be blood reservoirs.

The ____ components of blood are involved in the formation of clots.

In the average human, the heart beats ____ times per minute.

Heart rate ____ in response to ____ arterial pressure.

Signals from the atrioventricular (AV) node are carried to the bottom of the heart by ____.

Which animal has a gastrovascular cavity?

When blood returns from the pulmonary circuit, it first enters the ____ chamber of the heart.

The ____ is an accessory system of vessels and organs that helps balance the fluid content of the blood and surrounding tissues.

A lymph capillary is composed of ____.

The ____ is a large branched artery that leads to all body regions except the lungs.

Atherosclerosis ____.

Fish have a circulatory system that contains two ventricles and two atria.

Hypertension is a complication associated with ____.

Augustus Waller invented a machine that measures ____.

The ____ are the most numerous type of leukocyte in a healthy individual.

All organisms with circulatory systems have a heart.

Coronary circulation involves ____.

Bulk flow in capillaries is driven by ____.

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

Filters

Heart rate in response to arterial pressure.