Question 1

During periods of activity,when the heart rate is rapid,the mean arterial pressure in humans is

Accepted Answer

A) 2/3 diastolic pressure and 1/3 systolic pressure. 
B) 1/3 diastolic pressure and 2/3 systolic pressure. 
C) 1/2 diastolic pressure and 1/2 systolic pressure. 
D) approximately equal to systolic pressure. 
A) 2/3 diastolic pressure and 1/3 systolic pressure. 
B) 1/3 diastolic pressure and 2/3 systolic pressure. 
C) 1/2 diastolic pressure and 1/2 systolic pressure. 
D) approximately equal to systolic pressure. C

Question 2

How many hearts does an octopus have?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4 C

Question 3

How do substances move across capillaries?

Accepted Answer

A) diffusion 
B) through pores 
C) transcytosis 
D) all of the above 
A) diffusion 
B) through pores 
C) transcytosis 
D) all of the above D

Question 4

What differentiates a closed circulatory system from an open circulatory system?

Accepted Answer

A) the presence of a heart 
B) the presence of a circulating fluid 
C) the presence of vessels 
D) dcirect contact of circulating fluid with tissues 
A) the presence of a heart 
B) the presence of a circulating fluid 
C) the presence of vessels 
D) dcirect contact of circulating fluid with tissues

Question 5

Cardiac contraction is called __________.

Accepted Answer

The answer of Cardiac contraction is called __________....

Question 6

Capillaries empty into __________.

Accepted Answer

The answer of Capillaries empty into __________....

Question 7

Fish hearts consist of __________ chambers arranged in a series.

Accepted Answer

A) two 
B) three 
C) four 
D) five 
A) two 
B) three 
C) four 
D) five

Question 8

Based on the law of bulk flow,what is the unit for "flow"?

Accepted Answer

A) volume 
B) volume/time 
C) time 
D) force/area 
A) volume 
B) volume/time 
C) time 
D) force/area

Question 9

How do cardiomyocytes communicate with one another?

Accepted Answer

A) neurotransmitters 
B) gap junctions 
C) synapses 
D) tight junctions 
A) neurotransmitters 
B) gap junctions 
C) synapses 
D) tight junctions

Question 10

Total flow in the vertebrate circulatory system can be expressed as the total pressure change divided by

Accepted Answer

A) total peripheral resistance. 
B) total volume. 
C) total length. 
D) total time. 
A) total peripheral resistance. 
B) total volume. 
C) total length. 
D) total time.

Question 11

How do veins prevent the backflow of blood?

Accepted Answer

A) gravity 
B) pressure 
C) valves 
D) bulk flow 
A) gravity 
B) pressure 
C) valves 
D) bulk flow

Question 12

Angiogenesis refers to

Accepted Answer

A) damage to blood vessels. 
B) synthesis of blood vessels. 
C) genetic analysis of blood vessels. 
D) the ontogeny of the vascular system. 
A) damage to blood vessels. 
B) synthesis of blood vessels. 
C) genetic analysis of blood vessels. 
D) the ontogeny of the vascular system.

Question 13

An osmotic pressure that is due to proteins is termed __________.

Accepted Answer

The answer of An osmotic pressure that is due to...

Question 14

Tachycardia is a term that refers to

Accepted Answer

A) lower than normal heart rate. 
B) abnormal rhythm. 
C) uncoordinated contraction of the heart. 
D) higher than normal heart rate. 
A) lower than normal heart rate. 
B) abnormal rhythm. 
C) uncoordinated contraction of the heart. 
D) higher than normal heart rate.

Question 15

Beginning with all chambers of the heart in the "relaxed" phase,describe the cardiac cycle in mammals,with systole and diastole of the atria and ventricles.For each time point in the cycle you select,state the following:
∙Whether the atria and ventricles are contracting or relaxing
∙Whether the AV valves and semilunar valves are closed or open
∙Whether the pressure in the atria and ventricles is high or low

Accepted Answer

i.The heart begins with all chambers rel

Question 16

The main function of vertebrate erythrocytes is the storage and transport of __________.

Accepted Answer

The answer of The main function of vertebrate erythrocytes is...

Question 17

In jawed vertebrates,the large artery leading from the heart to the body is called the __________.

Accepted Answer

The answer of In jawed vertebrates,the large artery leading from...

Question 18

During the flight or fight response,sympathetic pathways cause arterioles to contract.If this is true,how is it possible to increase blood flow to areas that require additional oxygen,such as skeletal muscle?

Accepted Answer

While vasoconstriction is useful for are

Question 19

The end-diastolic volume is

Accepted Answer

A)  the maximum volume of blood in the ventricle. 
B)  the maximum volume of blood in the atrium. 
C)  the minimum volume of blood in the ventricle. 
D)  the minimum volume of blood in the atrium. 
A)  the maximum volume of blood in the ventricle. 
B)  the maximum volume of blood in the atrium. 
C)  the minimum volume of blood in the ventricle. 
D)  the minimum volume of blood in the atrium.

Question 20

The vertebrate heart muscle is known as

Accepted Answer

A) pericardium. 
B) epicardium. 
C) myocardium. 
D) endocardium. 
A) pericardium. 
B) epicardium. 
C) myocardium. 
D) endocardium.

During periods of activity,when the heart rate is rapid,the mean arterial pressure in humans is

How many hearts does an octopus have?

How do substances move across capillaries?

What differentiates a closed circulatory system from an open circulatory system?

Cardiac contraction is called __________.

Capillaries empty into __________.

Fish hearts consist of __________ chambers arranged in a series.

Based on the law of bulk flow,what is the unit for "flow"?

How do cardiomyocytes communicate with one another?

Total flow in the vertebrate circulatory system can be expressed as the total pressure change divided by

How do veins prevent the backflow of blood?

Angiogenesis refers to

An osmotic pressure that is due to proteins is termed __________.

Tachycardia is a term that refers to

The main function of vertebrate erythrocytes is the storage and transport of __________.

In jawed vertebrates,the large artery leading from the heart to the body is called the __________.

During the flight or fight response,sympathetic pathways cause arterioles to contract.If this is true,how is it possible to increase blood flow to areas that require additional oxygen,such as skeletal muscle?

The end-diastolic volume is

The vertebrate heart muscle is known as

Introduction to Physiological Principles

Physiological Evolution of Animals

Chemistry, biochemistry, and Cell Physiology

Cell Signaling and Endocrine Regulation

Neuron Structure and Function

Cellular Movement and Muscles

Sensory Systems

Functional Organization of Nervous Systems

Immune Systems

Respiratory Systems

Locomotion

Ion and Water Balance

Digestion and Energy Metabolism

Thermal Physiology

Reproductive Physiology

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Exam 9: Circulatory Systems

During periods of activity,when the heart rate is rapid,the mean arterial pressure in humans is

How many hearts does an octopus have?

How do substances move across capillaries?

What differentiates a closed circulatory system from an open circulatory system?

Cardiac contraction is called __________.

Capillaries empty into __________.

Fish hearts consist of __________ chambers arranged in a series.

Based on the law of bulk flow,what is the unit for "flow"?

How do cardiomyocytes communicate with one another?

Total flow in the vertebrate circulatory system can be expressed as the total pressure change divided by

How do veins prevent the backflow of blood?

Angiogenesis refers to

An osmotic pressure that is due to proteins is termed __________.

Tachycardia is a term that refers to

The main function of vertebrate erythrocytes is the storage and transport of __________.

In jawed vertebrates,the large artery leading from the heart to the body is called the __________.

During the flight or fight response,sympathetic pathways cause arterioles to contract.If this is true,how is it possible to increase blood flow to areas that require additional oxygen,such as skeletal muscle?

The end-diastolic volume is

The vertebrate heart muscle is known as

Introduction to Physiological Principles

Physiological Evolution of Animals

Chemistry, biochemistry, and Cell Physiology

Cell Signaling and Endocrine Regulation

Neuron Structure and Function

Cellular Movement and Muscles

Sensory Systems

Functional Organization of Nervous Systems

Immune Systems

Respiratory Systems

Locomotion

Ion and Water Balance

Digestion and Energy Metabolism

Thermal Physiology

Reproductive Physiology

Filters