Question 1

What is the term that refers to an increase in stroke volume in response to the stretching of the heart?

Accepted Answer

A)  Starling's law of the heart 
B)  a positive inotropic effect 
C)  heart block 
D)  angina pectoris 
A)  Starling's law of the heart 
B)  a positive inotropic effect 
C)  heart block 
D)  angina pectoris

Question 2

Heart rate and stroke volume determine

Accepted Answer

A)  hematocrit. 
B)  total blood volume. 
C)  cardiac output. 
D)  the size of the heart valves. 
A)  hematocrit. 
B)  total blood volume. 
C)  cardiac output. 
D)  the size of the heart valves.

Question 3

Increased afterload (e.g.,hypertension)

Accepted Answer

A)  is usually caused by arteriolar dilation. 
B)  increases the work of the heart. 
C)  can only occur when preload increases. 
D)  is usually caused by intense parasympathetic (vagal)discharge. 
A)  is usually caused by arteriolar dilation. 
B)  increases the work of the heart. 
C)  can only occur when preload increases. 
D)  is usually caused by intense parasympathetic (vagal)discharge.

Question 4

An ejection fraction of 30% is

Accepted Answer

A)  normal. 
B)  characteristic of a healthy person who is engaged in aerobic exercise. 
C)  characteristic of a failing heart. 
D)  the amount of oxygenated hemoglobin in the blood in the left ventricle. 
A)  normal. 
B)  characteristic of a healthy person who is engaged in aerobic exercise. 
C)  characteristic of a failing heart. 
D)  the amount of oxygenated hemoglobin in the blood in the left ventricle.

Question 5

What is the term for the sequence of events that occur during one heartbeat?

Accepted Answer

A)  stroke volume 
B)  cardiac output 
C)  cardiac cycle 
D)  systole 
A)  stroke volume 
B)  cardiac output 
C)  cardiac cycle 
D)  systole

What is the term that refers to an increase in stroke volume in response to the stretching of the heart?

Heart rate and stroke volume determine

Increased afterload (e.g.,hypertension)

An ejection fraction of 30% is

What is the term for the sequence of events that occur during one heartbeat?

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Sensory System

Endocrine System

Blood

Heart

Anatomy of the Blood Vessels

Functions of the Blood Vessels

Lymphatic System

Immune System

Respiratory System

Digestive System

Urinary System

Water,Electrolyte,and Acid-Base Balance

Reproductive Systems

Human Development and Heredity

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Exam 17: Function of the Heart

What is the term that refers to an increase in stroke volume in response to the stretching of the heart?

Heart rate and stroke volume determine

Increased afterload (e.g.,hypertension)

An ejection fraction of 30% is

What is the term for the sequence of events that occur during one heartbeat?

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Sensory System

Endocrine System

Blood

Heart

Anatomy of the Blood Vessels

Functions of the Blood Vessels

Lymphatic System

Immune System

Respiratory System

Digestive System

Urinary System

Water,Electrolyte,and Acid-Base Balance

Reproductive Systems

Human Development and Heredity

Filters