Question 1

What happens to the speed of blood as it passes through the capillaries?

Accepted Answer

A) It increases slightly. 
B) It decreases slightly. 
C) It increases greatly. 
D) It decreases greatly. 
E) It depends on the location of the capillaries. 
A) It increases slightly. 
B) It decreases slightly. 
C) It increases greatly. 
D) It decreases greatly. 
E) It depends on the location of the capillaries.

Question 2

The average red blood cell lives for about ________ days.

Accepted Answer

A) 90 
B) 100 
C) 120 
D) 150 
A) 90 
B) 100 
C) 120 
D) 150

Question 3

What is the cardiac cycle?

Accepted Answer

A) the alternating relaxation and contraction of the heart chambers 
B) the movement of blood from the heart to the lungs and then back to the heart 
C) the passage of electrical impulses from the AV node to the SN node to heart muscle 
D) the movement of blood from systemic to pulmonary circulation 
A) the alternating relaxation and contraction of the heart chambers 
B) the movement of blood from the heart to the lungs and then back to the heart 
C) the passage of electrical impulses from the AV node to the SN node to heart muscle 
D) the movement of blood from systemic to pulmonary circulation

Question 4

What is the advantage of a closed circulatory system over an open one?

Accepted Answer

A) A closed system carries more blood. 
B) A closed system moves blood more efficiently. 
C) There are more blood cells in a closed system. 
D) Blood flows more slowly in a closed system. 
E) In a closed system, the blood comes nearer to each cell. 
A) A closed system carries more blood. 
B) A closed system moves blood more efficiently. 
C) There are more blood cells in a closed system. 
D) Blood flows more slowly in a closed system. 
E) In a closed system, the blood comes nearer to each cell.

Question 5

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

Accepted Answer

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

Question 6

A three-chambered heart:

Accepted Answer

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

Question 7

What two organs are considered to be part of the lymphatic system?

Accepted Answer

A) pancreas and liver 
B) gall bladder and kidneys 
C) spleen and thymus 
D) heart and lungs 
E) thalamus and hypothalamus 
A) pancreas and liver 
B) gall bladder and kidneys 
C) spleen and thymus 
D) heart and lungs 
E) thalamus and hypothalamus

Question 8

The human heart contains cells that do all of the following EXCEPT:

Accepted Answer

A) contract. 
B) produce a hormone. 
C) generate electrical signals. 
D) create new red blood cells. 
A) contract. 
B) produce a hormone. 
C) generate electrical signals. 
D) create new red blood cells.

Question 9

How do lymphatic capillaries differ from blood capillaries?

Accepted Answer

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

Question 10

If a person's blood pressure is 120/70, the 70 refers to the pressure:

Accepted Answer

A) during contraction of the left ventricle only. 
B) during contraction of both ventricles. 
C) during relaxation of the aorta. 
D) during contraction of the vena cava. 
E) lowering between contractions. 
A) during contraction of the left ventricle only. 
B) during contraction of both ventricles. 
C) during relaxation of the aorta. 
D) during contraction of the vena cava. 
E) lowering between contractions.

Question 11

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

Question 12

When your physician takes your pulse, he or she is feeling the expansion and contraction of your:

Accepted Answer

A) arteries or arterioles. 
B) capillaries. 
C) veins or venules. 
D) arteries and veins. 
A) arteries or arterioles. 
B) capillaries. 
C) veins or venules. 
D) arteries and veins.

Question 13

Plasma is primarily:

Accepted Answer

A) protein. 
B) salt. 
C) cells. 
D) gases. 
E) water. 
A) protein. 
B) salt. 
C) cells. 
D) gases. 
E) water.

Question 14

Rheumatic fever (RF)is an inflammatory disease following infection from Streptococcus bacteria. It mainly affects children between ages 5 and 15 and occurs approximately 20 days after "strep throat" or "scarlet fever." Severe RF can result in degeneration of the heart valves. Based on this scenario, RF is most likely to cause:

Accepted Answer

A) slower heartbeat. 
B) uncoordinated contraction of ventricles. 
C) faster heart beat. 
D) "backslide" of blood from a ventricle to an atrium. 
A) slower heartbeat. 
B) uncoordinated contraction of ventricles. 
C) faster heart beat. 
D) "backslide" of blood from a ventricle to an atrium.

Question 15

Erythropoietin stimulates the manufacture of:

Accepted Answer

A) red blood cells. 
B) white blood cells. 
C) platelets. 
D) albumin. 
A) red blood cells. 
B) white blood cells. 
C) platelets. 
D) albumin.

Question 16

Which of these animals has a heart with only two chambers?

Accepted Answer

A) hummingbird 
B) human 
C) goldfish 
D) bullfrog 
E) cat 
A) hummingbird 
B) human 
C) goldfish 
D) bullfrog 
E) cat

Question 17

Lymph nodes aid in the destruction of bacteria and viruses. True or False?

Accepted Answer

A) True 
 B)False

Question 18

The fluid portion of the blood is called ________.

Accepted Answer

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

Question 19

Red blood cells are called ________.

Accepted Answer

The answer of Red blood cells are called ________....

Question 20

Why is HDL cholesterol considered to be "good" cholesterol?

Accepted Answer

HDL cholesterol is metabolized

Exam 32: Circulation

What happens to the speed of blood as it passes through the capillaries?

The average red blood cell lives for about ________ days.

What is the cardiac cycle?

What is the advantage of a closed circulatory system over an open one?

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

A three-chambered heart:

What two organs are considered to be part of the lymphatic system?

The human heart contains cells that do all of the following EXCEPT:

How do lymphatic capillaries differ from blood capillaries?

If a person's blood pressure is 120/70, the 70 refers to the pressure:

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:

When your physician takes your pulse, he or she is feeling the expansion and contraction of your:

Plasma is primarily:

Erythropoietin stimulates the manufacture of:

Which of these animals has a heart with only two chambers?

Lymph nodes aid in the destruction of bacteria and viruses. True or False?

The fluid portion of the blood is called ________.

Red blood cells are called ________.

Why is HDL cholesterol considered to be "good" cholesterol?

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

The Continuity of Life: Cellular 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 Amidst 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

How Do Ecosystems Work

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

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