Question 1

A reflex is different than a homeostatic control mechanism because a reflex

Accepted Answer

A) Is not initiated by a change in the environment 
B) Arc does not require an integrating center to take place 
C) Does not require an afferent pathway 
D) Is a localized response involving short distance communication 
E) Will not always attempt to decrease the magnitude of the original stimulus 
A) Is not initiated by a change in the environment 
B) Arc does not require an integrating center to take place 
C) Does not require an afferent pathway 
D) Is a localized response involving short distance communication 
E) Will not always attempt to decrease the magnitude of the original stimulus E

Question 2

The four broad categories of cells include those specialized for each of the following functions except

Accepted Answer

A) Movement 
B) Synthesis of complex molecules 
C) Secretion 
D) Support 
E) Conduction of electrical impulses 
A) Movement 
B) Synthesis of complex molecules 
C) Secretion 
D) Support 
E) Conduction of electrical impulses B

Question 3

Shivering in response to a cold draft is an example of

Accepted Answer

A) A homeostatic mechanism 
B) Negative feedback 
C) A physiological reflex 
D) A homeostatic mechanism and negative feedback 
E) All of the choices are correct 
A) A homeostatic mechanism 
B) Negative feedback 
C) A physiological reflex 
D) A homeostatic mechanism and negative feedback 
E) All of the choices are correct E

Question 4

If a person begins to sweat upon entering a hot room but continued sweating is able to keep the body temperature constant,the person is

Accepted Answer

A) In equilibrium 
B) Not using energy to maintain a constant temperature 
C) In steady state 
D) Using a positive feedback mechanism 
A) In equilibrium 
B) Not using energy to maintain a constant temperature 
C) In steady state 
D) Using a positive feedback mechanism

Question 5

Which is not a connective tissue cell?

Accepted Answer

A) Bone cells 
B) Skeletal muscle cells 
C) Blood cells 
D) Fat cells 
E) Both skeletal muscle cells and blood cells are correct 
A) Bone cells 
B) Skeletal muscle cells 
C) Blood cells 
D) Fat cells 
E) Both skeletal muscle cells and blood cells are correct

Question 6

A protein is found in blood that is produced by the pancreas and acts on the liver.That protein is probably

Accepted Answer

A) A hormone 
B) An autocrine 
C) A paracrine 
D) A neurotransmitter 
E) None of the choices are correct 
A) A hormone 
B) An autocrine 
C) A paracrine 
D) A neurotransmitter 
E) None of the choices are correct

Question 7

______________ is the regulation of cellular activity by chemical mediators produced by that cell.

Accepted Answer

The answer of ______________ is the regulation of cellular activity...

Question 8

The concept of an error signal,when applied to homeostatic adjustments,refers to the fact that the

Accepted Answer

A) New steady state is often not exactly the same as the set point that existed before the adjustment was necessary 
B) Pattern of afferent nerve impulses from receptors is sometimes not adequate for optimal adjustments 
C) Integrating centers in the CNS sometimes make errors in analyzing afferent signals from various receptors 
D) All of the choices are correct 
E) None of the choices are correct 
A) New steady state is often not exactly the same as the set point that existed before the adjustment was necessary 
B) Pattern of afferent nerve impulses from receptors is sometimes not adequate for optimal adjustments 
C) Integrating centers in the CNS sometimes make errors in analyzing afferent signals from various receptors 
D) All of the choices are correct 
E) None of the choices are correct

Question 9

Homeostasis refers to

Accepted Answer

A) The unwavering control of a physiological set point 
B) Maintaining a stable internal environment 
C) Maintaining a stable external environment 
D) Both the unwavering control of a physiological set point and maintaining a stable internal environment are correct 
E) Both the unwavering control of a physiological set point and maintaining a stable external environment are correct 
A) The unwavering control of a physiological set point 
B) Maintaining a stable internal environment 
C) Maintaining a stable external environment 
D) Both the unwavering control of a physiological set point and maintaining a stable internal environment are correct 
E) Both the unwavering control of a physiological set point and maintaining a stable external environment are correct

Question 10

Feedforward regulation differs from feedback regulation in that

Accepted Answer

A) The former is stimulatory while the latter is inhibitory 
B) The former allows the CNS to anticipate the need for changes in physiological set points, whereas the latter does not 
C) Only the latter is involved in homeostatic regulation 
D) Both the former is stimulatory while the latter is inhibitory and the former allows the CNS to anticipate the need for changes in physiological set points, whereas the latter does not are correct 
E) Both the former is stimulatory while the latter is inhibitory and only the latter is involved in homeostatic regulation are correct 
A) The former is stimulatory while the latter is inhibitory 
B) The former allows the CNS to anticipate the need for changes in physiological set points, whereas the latter does not 
C) Only the latter is involved in homeostatic regulation 
D) Both the former is stimulatory while the latter is inhibitory and the former allows the CNS to anticipate the need for changes in physiological set points, whereas the latter does not are correct 
E) Both the former is stimulatory while the latter is inhibitory and only the latter is involved in homeostatic regulation are correct

Question 11

A positive feedback mechanism is an effective way to

Accepted Answer

A) Maintain a constant internal environment 
B) Anticipate changes in the environment 
C) Adapt to a new environment 
D) Bring about a rapid change in the body 
E) Detect changes in the external environment 
A) Maintain a constant internal environment 
B) Anticipate changes in the environment 
C) Adapt to a new environment 
D) Bring about a rapid change in the body 
E) Detect changes in the external environment

Question 12

The hormone insulin enhances the transport of glucose into most of the body's cells.Its secretion is controlled by a negative-feedback system between the concentration of glucose in the blood and the cells that secrete insulin.Which of the following statements is most likely to be correct?

Accepted Answer

A) A decrease in blood glucose concentration will stimulate insulin secretion, which will in turn lower the blood glucose concentration still further 
B) An increase in blood glucose concentration will stimulate insulin secretion, which will in turn lower the blood glucose concentration 
C) A decrease in blood glucose concentration will stimulate insulin secretion, which will in turn increase the blood glucose concentration 
D) An increase in blood glucose concentration will stimulate insulin secretion, which will in turn increase the blood glucose concentration still further 
E) None of the choices are correct 
A) A decrease in blood glucose concentration will stimulate insulin secretion, which will in turn lower the blood glucose concentration still further 
B) An increase in blood glucose concentration will stimulate insulin secretion, which will in turn lower the blood glucose concentration 
C) A decrease in blood glucose concentration will stimulate insulin secretion, which will in turn increase the blood glucose concentration 
D) An increase in blood glucose concentration will stimulate insulin secretion, which will in turn increase the blood glucose concentration still further 
E) None of the choices are correct

Question 13

Some neurons in the vagus nerve terminate on sinoatrial (pacemaker)cells in the heart.These neurons secrete acetylcholine,which ultimately results in a decreased heart rate.This is an example of

Accepted Answer

A) Endocrine control 
B) Exocrine control 
C) Hormonal control 
D) Neural control 
E) None of the choices are correct 
A) Endocrine control 
B) Exocrine control 
C) Hormonal control 
D) Neural control 
E) None of the choices are correct

Question 14

After spending several days at a high altitude,where oxygen pressure is low,a person will begin to produce more red blood cells,which enhances the ability of his/her blood to carry oxygen to the tissues.Which of the following control mechanisms best describes this response?

Accepted Answer

A) Developmental acclimatization 
B) Positive feedback 
C) Physiological acclimatization 
D) Feedforward regulation 
E) None of the choices are correct 
A) Developmental acclimatization 
B) Positive feedback 
C) Physiological acclimatization 
D) Feedforward regulation 
E) None of the choices are correct

Question 15

When a person is exposed to an environmental stress for a prolonged period of time,the person's ability to adapt to that stress is enhanced.This is an example of

Accepted Answer

A) Negative feedback 
B) Positive feedback 
C) Physiological acclimatization 
D) Developmental acclimatization 
E) Both negative feedback and developmental acclimatization 
A) Negative feedback 
B) Positive feedback 
C) Physiological acclimatization 
D) Developmental acclimatization 
E) Both negative feedback and developmental acclimatization

Question 16

When loss of a substance from the body exceeds gain,the body is said to be in positive balance for that substance.

Accepted Answer

A) True 
 B)False

Question 17

The study of disease states in the body is called

Accepted Answer

A) Pathophysiology 
B) Anatomy 
C) Homeostasis 
D) Biology 
E) Histology 
A) Pathophysiology 
B) Anatomy 
C) Homeostasis 
D) Biology 
E) Histology

Question 18

_________________ is a chemical released by axon terminals into the bloodstream.

Accepted Answer

The answer of _________________ is a chemical released by axon...

Question 19

Feedforward regulatory processes

Accepted Answer

A) Work in anticipation of changes in regulated variables 
B) Work in conjunction with negative feedback processes 
C) Lead to instability of the regulated variable 
D) Maximize fluctuations in the regulated variable 
E) Both work in anticipation of changes in regulated variables and work in conjunction with negative feedback processes are correct 
A) Work in anticipation of changes in regulated variables 
B) Work in conjunction with negative feedback processes 
C) Lead to instability of the regulated variable 
D) Maximize fluctuations in the regulated variable 
E) Both work in anticipation of changes in regulated variables and work in conjunction with negative feedback processes are correct

Question 20

The composition of the fluid bathing the cells of the body is essentially the same as that within the cells.

Accepted Answer

A) True 
 B)False

A reflex is different than a homeostatic control mechanism because a reflex

The four broad categories of cells include those specialized for each of the following functions except

Shivering in response to a cold draft is an example of

If a person begins to sweat upon entering a hot room but continued sweating is able to keep the body temperature constant,the person is

Which is not a connective tissue cell?

A protein is found in blood that is produced by the pancreas and acts on the liver.That protein is probably

______________ is the regulation of cellular activity by chemical mediators produced by that cell.

The concept of an error signal,when applied to homeostatic adjustments,refers to the fact that the

Homeostasis refers to

Feedforward regulation differs from feedback regulation in that

A positive feedback mechanism is an effective way to

The hormone insulin enhances the transport of glucose into most of the body's cells.Its secretion is controlled by a negative-feedback system between the concentration of glucose in the blood and the cells that secrete insulin.Which of the following statements is most likely to be correct?

Some neurons in the vagus nerve terminate on sinoatrial (pacemaker)cells in the heart.These neurons secrete acetylcholine,which ultimately results in a decreased heart rate.This is an example of

After spending several days at a high altitude,where oxygen pressure is low,a person will begin to produce more red blood cells,which enhances the ability of his/her blood to carry oxygen to the tissues.Which of the following control mechanisms best describes this response?

When a person is exposed to an environmental stress for a prolonged period of time,the person's ability to adapt to that stress is enhanced.This is an example of

When loss of a substance from the body exceeds gain,the body is said to be in positive balance for that substance.

The study of disease states in the body is called

_________________ is a chemical released by axon terminals into the bloodstream.

Feedforward regulatory processes

The composition of the fluid bathing the cells of the body is essentially the same as that within the cells.

Chemical Composition of the Body

Cellular Structure, Proteins, and Metabolism

Movement of Molecules Across Cell Membranes

Control of Cells by Chemical Messengers

Neuronal Signaling and the Structure of the Nervous System

Sensory Physiology

Consciousness, the Brain, and Behavior

Muscle

Control of Body Movement

The Endocrine System

Cardiovascular Physiology

Respiratory Physiology

The Kidneys and Regulation of Water and Inorganic Ions

The Digestion and Absorption of Food

Regulation of Organic Metabolism and Energy Balance

Reproduction

The Immune System

Medical Physiology: Integration Using Clinical Cases

Filters

Exam 1: Homeostasis: a Framework for Human Physiology

A reflex is different than a homeostatic control mechanism because a reflex

The four broad categories of cells include those specialized for each of the following functions except

Shivering in response to a cold draft is an example of

If a person begins to sweat upon entering a hot room but continued sweating is able to keep the body temperature constant,the person is

Which is not a connective tissue cell?

A protein is found in blood that is produced by the pancreas and acts on the liver.That protein is probably

______________ is the regulation of cellular activity by chemical mediators produced by that cell.

The concept of an error signal,when applied to homeostatic adjustments,refers to the fact that the

Homeostasis refers to

Feedforward regulation differs from feedback regulation in that

A positive feedback mechanism is an effective way to

The hormone insulin enhances the transport of glucose into most of the body's cells.Its secretion is controlled by a negative-feedback system between the concentration of glucose in the blood and the cells that secrete insulin.Which of the following statements is most likely to be correct?

Some neurons in the vagus nerve terminate on sinoatrial (pacemaker)cells in the heart.These neurons secrete acetylcholine,which ultimately results in a decreased heart rate.This is an example of

After spending several days at a high altitude,where oxygen pressure is low,a person will begin to produce more red blood cells,which enhances the ability of his/her blood to carry oxygen to the tissues.Which of the following control mechanisms best describes this response?

When a person is exposed to an environmental stress for a prolonged period of time,the person's ability to adapt to that stress is enhanced.This is an example of

When loss of a substance from the body exceeds gain,the body is said to be in positive balance for that substance.

The study of disease states in the body is called

_________________ is a chemical released by axon terminals into the bloodstream.

Feedforward regulatory processes

The composition of the fluid bathing the cells of the body is essentially the same as that within the cells.

Chemical Composition of the Body

Cellular Structure, Proteins, and Metabolism

Movement of Molecules Across Cell Membranes

Control of Cells by Chemical Messengers

Neuronal Signaling and the Structure of the Nervous System

Sensory Physiology

Consciousness, the Brain, and Behavior

Muscle

Control of Body Movement

The Endocrine System

Cardiovascular Physiology

Respiratory Physiology

The Kidneys and Regulation of Water and Inorganic Ions

The Digestion and Absorption of Food

Regulation of Organic Metabolism and Energy Balance

Reproduction

The Immune System

Medical Physiology: Integration Using Clinical Cases

Filters