Question 1

Which of the following includes lymphocytes?

Accepted Answer

A)  Red blood cells 
B)  Platelets 
C)  White blood cells 
D)  Albumin 
A)  Red blood cells 
B)  Platelets 
C)  White blood cells 
D)  Albumin

Question 2

A three- chambered heart

Accepted Answer

A)  has three ventricles. 
B)  has two atria and one ventricle. 
C)  has three atria. 
D)  has one atrium and two ventricles. 
E)  is found in fish. 
A)  has three ventricles. 
B)  has two atria and one ventricle. 
C)  has three atria. 
D)  has one atrium and two ventricles. 
E)  is found in fish.

Question 3

Based on this figure, which of the following is TRUE?

Accepted Answer

A)  Oxygenated and deoxygenated blood mix in the ventricle. 
B)  Oxygenated and deoxygenated blood mix in the atria. 
C)  Oxygenated and deoxygenated blood never mix. 
D)  Deoxygenated blood enters the body capillaries after being pumped from the heart. 
A)  Oxygenated and deoxygenated blood mix in the ventricle. 
B)  Oxygenated and deoxygenated blood mix in the atria. 
C)  Oxygenated and deoxygenated blood never mix. 
D)  Deoxygenated blood enters the body capillaries after being pumped from the heart.

Question 4

While sitting in front of the TV, the average person's heart rate is about 70 beats per minute because the nervous system slows the heart down from the approximately 100 beats per minute that the pacemaker, the node, sets.

Accepted Answer

The answer of While sitting in front of the TV,...

Question 5

Erythropoietin

Accepted Answer

A)  stimulates the spleen to release more red blood cells. 
B)  is produced by the pancreas. 
C)  is released in response to high carbon dioxide or low oxygen levels in the blood. 
D)  is released only in response to hemorrhaging (bleeding). 
A)  stimulates the spleen to release more red blood cells. 
B)  is produced by the pancreas. 
C)  is released in response to high carbon dioxide or low oxygen levels in the blood. 
D)  is released only in response to hemorrhaging (bleeding).

Question 6

The valve is between the right ventricle and the pulmonary artery.

Accepted Answer

A)  atrioventricular 
B)  tricuspid 
C)  semilunar 
D)  bicuspid 
A)  atrioventricular 
B)  tricuspid 
C)  semilunar 
D)  bicuspid

Question 7

It is important that the atrioventricular (AV) node produce a delay between the contraction of the atria and the contraction of the ventricles because this allows the

Accepted Answer

A)  heart to rest for a brief period of time. 
B)  ventricles to fill to capacity. 
C)  ventricles to contract in smooth synchrony. 
D)  atria to contract in smooth synchrony. 
A)  heart to rest for a brief period of time. 
B)  ventricles to fill to capacity. 
C)  ventricles to contract in smooth synchrony. 
D)  atria to contract in smooth synchrony.

Question 8

Which of these blood cells have no nucleus in mammals?

Accepted Answer

A)  White blood cells 
B)  Red blood cells 
C)  Lymphocytes 
D)  All blood cells in mammals lack nuclei. 
A)  White blood cells 
B)  Red blood cells 
C)  Lymphocytes 
D)  All blood cells in mammals lack nuclei.

Question 9

The fluid portion of the blood is called .

Accepted Answer

The answer of The fluid portion of the blood is...

Question 10

Which of the following does NOT play a role in blood clotting?

Accepted Answer

A)  Albumin 
B)  Platelets 
C)  Thrombin 
D)  Fibrinogen 
E)  Fibrin 
A)  Albumin 
B)  Platelets 
C)  Thrombin 
D)  Fibrinogen 
E)  Fibrin

Question 11

Fluid that leaks (or is pushed out by pressure) from the capillaries into the tissue spaces is known as _ fluid.

Accepted Answer

The answer of Fluid that leaks (or is pushed out...

Question 12

Which blood constituent makes up most of the volume of blood?

Accepted Answer

A)  Plasma 
B)  Red blood cells 
C)  Blood proteins 
D)  White blood cells 
A)  Plasma 
B)  Red blood cells 
C)  Blood proteins 
D)  White blood cells

Question 13

Hypertension may lead to

Accepted Answer

A)  atherosclerosis. 
B)  lung cancer. 
C)  low blood pressure. 
D)  enlarged prostate. 
A)  atherosclerosis. 
B)  lung cancer. 
C)  low blood pressure. 
D)  enlarged prostate.

Question 14

How do lymphatic capillaries differ from blood capillaries?

Accepted Answer

A)  They contain plasma. 
B)  They have "dead ends." 
C)  They contain red blood cells. 
D)  They have a wall only one cell layer thick. 
E)  They are made by lymphocytes. 
A)  They contain plasma. 
B)  They have "dead ends." 
C)  They contain red blood cells. 
D)  They have a wall only one cell layer thick. 
E)  They are made by lymphocytes.

Question 15

When interstitial fluid enters the lymphatic system, it becomes known as

Accepted Answer

A)  plasma. 
B)  lymph. 
C)  macrophage. 
D)  globulin. 
E)  interstitial fluid. 
A)  plasma. 
B)  lymph. 
C)  macrophage. 
D)  globulin. 
E)  interstitial fluid.

Question 16

What is the correct sequence of blood vessels from the heart through the body and back to the heart?

Accepted Answer

A)  Veins, venules, capillaries, arterioles, arteries 
B)  Arteries, arterioles, capillaries, venules, veins 
C)  Veins, venules, arteries, arterioles, capillaries 
D)  Arterioles, arteries, capillaries, veins, venules 
E)  Arteries, arterioles, veins, venules, capillaries 
A)  Veins, venules, capillaries, arterioles, arteries 
B)  Arteries, arterioles, capillaries, venules, veins 
C)  Veins, venules, arteries, arterioles, capillaries 
D)  Arterioles, arteries, capillaries, veins, venules 
E)  Arteries, arterioles, veins, venules, capillaries

Question 17

The head of a giraffe is 5 meters above its heart. Compared to humans, giraffes have

Accepted Answer

A)  less blood volume. 
B)  veins of smaller diameter. 
C)  lower systolic blood pressure. 
D)  higher systolic blood pressure. 
A)  less blood volume. 
B)  veins of smaller diameter. 
C)  lower systolic blood pressure. 
D)  higher systolic blood pressure.

Question 18

Children who are severely deficient in protein may develop swollen bodies (a condition called kwashiorkor) due to an accumulation of fluid in their tissues. Based on your knowledge of the role of albumin in the blood, explain how this might happen.

Accepted Answer

Albumin proteins maintain the osmotic ba

Question 19

The aorta

Accepted Answer

A)  connects the right and left ventricles of the heart. 
B)  is a major vein. 
C)  contains blood with low pressure. 
D)  is a major artery. 
A)  connects the right and left ventricles of the heart. 
B)  is a major vein. 
C)  contains blood with low pressure. 
D)  is a major artery.

Question 20

Which of the following is delivered from the small intestine to the bloodstream through the lymphatic system?

Accepted Answer

A)  Amino acids 
B)  Carbohydrates (sugars) 
C)  Proteins 
D)  Lipids (fats) 
A)  Amino acids 
B)  Carbohydrates (sugars) 
C)  Proteins 
D)  Lipids (fats)

Exam 33: Circulation

Which of the following includes lymphocytes?

A three- chambered heart

Based on this figure, which of the following is TRUE?

While sitting in front of the TV, the average person's heart rate is about 70 beats per minute because the nervous system slows the heart down from the approximately 100 beats per minute that the pacemaker, the node, sets.

Erythropoietin

The valve is between the right ventricle and the pulmonary artery.

It is important that the atrioventricular (AV) node produce a delay between the contraction of the atria and the contraction of the ventricles because this allows the

Which of these blood cells have no nucleus in mammals?

The fluid portion of the blood is called .

Which of the following does NOT play a role in blood clotting?

Fluid that leaks (or is pushed out by pressure) from the capillaries into the tissue spaces is known as _ fluid.

Which blood constituent makes up most of the volume of blood?

Hypertension may lead to

How do lymphatic capillaries differ from blood capillaries?

When interstitial fluid enters the lymphatic system, it becomes known as

What is the correct sequence of blood vessels from the heart through the body and back to the heart?

The head of a giraffe is 5 meters above its heart. Compared to humans, giraffes have

Children who are severely deficient in protein may develop swollen bodies (a condition called kwashiorkor) due to an accumulation of fluid in their tissues. Based on your knowledge of the role of albumin in the blood, explain how this might happen.

The aorta

Which of the following is delivered from the small intestine to the bloodstream through the lymphatic system?

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity II: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

Filters