Question 1

The leading theory for maintenance of body weight as a result of long-term matching of food intake to energy expenditure relates to the

Accepted Answer

A)  amount of fat stored in adipose tissue 
B)  extent of glucose utilization 
C)  magnitude of cellular ATP production 
D)  extent of gastrointestinal distention 
E)  extent of behavioral modification associated with eating habits 
A)  amount of fat stored in adipose tissue 
B)  extent of glucose utilization 
C)  magnitude of cellular ATP production 
D)  extent of gastrointestinal distention 
E)  extent of behavioral modification associated with eating habits A

Question 2

The thermoneutral zone for skin vasomotor activity is in the range of the upper 60s to mid-80s.

Accepted Answer

A) True 
 B)False  True

Question 3

The normal core temperature is 98.6$\degree$F (37$\degree$C).

Accepted Answer

A) True 
 B)False  False

Question 4

Shivering is the main voluntary means of increasing the production of heat in the body.

Accepted Answer

A) True 
 B)False

Question 5

Receptors that relay thermal information to the temperature control centers include

Accepted Answer

A)  peripheral warm and cold thermoreceptors in the skin 
B)  central thermoreceptors in the hypothalamus 
C)  central thermoreceptors in internal organs 
D)  peripheral warm and cold thermoreceptors in the skin and central thermoreceptors in internal organs 
E)  all of these 
A)  peripheral warm and cold thermoreceptors in the skin 
B)  central thermoreceptors in the hypothalamus 
C)  central thermoreceptors in internal organs 
D)  peripheral warm and cold thermoreceptors in the skin and central thermoreceptors in internal organs 
E)  all of these

Question 6

The skin thermoreceptors are capable of regulating core temperature in the absence of the hypothalamic temperature control centers.

Accepted Answer

A) True 
 B)False

Question 7

Most of the energy contained within food will be lost as heat.

Accepted Answer

A) True 
 B)False

Question 8

Skin vasoconstriction increases the skin's insulative capacity.

Accepted Answer

A) True 
 B)False

Question 9

The appetite centers stimulate feeding behavior, whereas the satiety centers inhibit feeding behavior.

Accepted Answer

A) True 
 B)False

Question 10

Complete each of the following statments.
The ____________________ serves as the body's thermostat.

Accepted Answer

The answer of Complete each of the following statments.
The ____________________...

Question 11

Radiation and conduction are two types of heat exchange between the body and environment. The magnitude of heat loss via these two processes is determined by the

Accepted Answer

A)  amount of sweating 
B)  temperature difference between body surface and its surroundings 
C)  absolute core temperature 
D)  extent of evaporation from the body surface 
E)  none of these 
A)  amount of sweating 
B)  temperature difference between body surface and its surroundings 
C)  absolute core temperature 
D)  extent of evaporation from the body surface 
E)  none of these

Question 12

Complete each of the following statments.
____________________ kilocalories of heat energy are released when one gram of glucose is oxidized.

Accepted Answer

The answer of Complete each of the following statments.
____________________ kilocalories...

Question 13

The development of fever

Accepted Answer

A)  results from resetting of the medullary thermoregulatory center 
B)  may develop when mast cells release pyrogens 
C)  is mediated by prostaglandins 
D)  results from resetting of the medullary thermoregulatory center and may develop when mast cells release pyrogens 
E)  all of these 
A)  results from resetting of the medullary thermoregulatory center 
B)  may develop when mast cells release pyrogens 
C)  is mediated by prostaglandins 
D)  results from resetting of the medullary thermoregulatory center and may develop when mast cells release pyrogens 
E)  all of these

Question 14

The major means of decreasing heat loss in response to a cold environmental temperature is

Accepted Answer

A)  skin vasoconstriction 
B)  skin vasodilation 
C)  increasing the temperature gradient between the skin and environment 
D)  formation of "goose bumps" 
E)  shivering 
A)  skin vasoconstriction 
B)  skin vasodilation 
C)  increasing the temperature gradient between the skin and environment 
D)  formation of "goose bumps" 
E)  shivering

Question 15

Use this figure to answer the corresponding questions.
List the three chemicals implied in this figure, along with their corresponding numbers, which ultimately have a positive effect on appetite.

Accepted Answer

Ghrelin-2,

Question 16

The energy equivalent of O2 is

Accepted Answer

A)  4.8 kilocalories of energy liberated per liter of O2 consumed 
B)  used to indirectly measure the metabolic rate 
C)  the energy required to raise 1 gm of H2O 1$\degree$C 
D)  4.8 kilocalories of energy liberated per liter of O2 consumed and used to indirectly measure the metabolic rate 
E)  all of these 
A)  4.8 kilocalories of energy liberated per liter of O2 consumed 
B)  used to indirectly measure the metabolic rate 
C)  the energy required to raise 1 gm of H2O 1$\degree$C 
D)  4.8 kilocalories of energy liberated per liter of O2 consumed and used to indirectly measure the metabolic rate 
E)  all of these

Question 17

The temperature control center in the posterior region of the hypothalamus is activated in response to cold exposure.

Accepted Answer

A) True 
 B)False

Question 18

When vasodilation of the blood vessels in the skin occurs:

Accepted Answer

A)  The skin temperature becomes warmer than the core temperature. 
B)  The insulative capacity of the skin is increased. 
C)  Heat will be lost from the body if the air temperature is cooler than the skin temperature. 
D)  The insulative capacity of the skin is increased and heat will be lost from the body if the air temperature is cooler than the skin temperature. 
E)  All of these. 
A)  The skin temperature becomes warmer than the core temperature. 
B)  The insulative capacity of the skin is increased. 
C)  Heat will be lost from the body if the air temperature is cooler than the skin temperature. 
D)  The insulative capacity of the skin is increased and heat will be lost from the body if the air temperature is cooler than the skin temperature. 
E)  All of these.

Question 19

Complete each of the following statments.
The most important factor determining the extent of evaporation of sweat is the ____________________ of the air.

Accepted Answer

The answer of Complete each of the following statments.
The most...

Question 20

Complete each of the following statments.
The disorder characterized by a pathological fear of gaining weight and a distorted body image is ____________________.

Accepted Answer

The answer of Complete each of the following statments.
The disorder...

Exam 17: Energy Balance and Temperature Regulation

The leading theory for maintenance of body weight as a result of long-term matching of food intake to energy expenditure relates to the

The thermoneutral zone for skin vasomotor activity is in the range of the upper 60s to mid-80s.

The normal core temperature is 98.6 °\degree° F (37 °\degree° C).

Shivering is the main voluntary means of increasing the production of heat in the body.

Receptors that relay thermal information to the temperature control centers include

The skin thermoreceptors are capable of regulating core temperature in the absence of the hypothalamic temperature control centers.

Most of the energy contained within food will be lost as heat.

Skin vasoconstriction increases the skin's insulative capacity.

The appetite centers stimulate feeding behavior, whereas the satiety centers inhibit feeding behavior.

Complete each of the following statments. The ____________________ serves as the body's thermostat.

Radiation and conduction are two types of heat exchange between the body and environment. The magnitude of heat loss via these two processes is determined by the

Complete each of the following statments. ____________________ kilocalories of heat energy are released when one gram of glucose is oxidized.

The development of fever

The major means of decreasing heat loss in response to a cold environmental temperature is

Use this figure to answer the corresponding questions. List the three chemicals implied in this figure, along with their corresponding numbers, which ultimately have a positive effect on appetite.

The energy equivalent of O2 is

The temperature control center in the posterior region of the hypothalamus is activated in response to cold exposure.

When vasodilation of the blood vessels in the skin occurs:

Complete each of the following statments. The most important factor determining the extent of evaporation of sweat is the ____________________ of the air.

Complete each of the following statments. The disorder characterized by a pathological fear of gaining weight and a distorted body image is ____________________.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

A--The Central Nervous System

B--The Central Nervous System

A--The Peripheral Nervous System: Afferent Division; Special Senses

B--The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

A--Muscle Physiology

B--Muscle Physiology

A--Cardiac Physiology

B--Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

A--The Respiratory System

B--The Respiratory System

A--The Urinary System

B--The Urinary System

A--Fluid and Acid-Base Balance

B--Fluid and Acid-Base Balance

A--The Digestive System

B--The Digestive System

A--Principles of Endocrinology: the Central Endocrine Glands

B--Principles of Endocrinology: the Central Endocrine Glands

A--The Peripheral Endocrine Glands

B--The Peripheral Endocrine Glands

A--The Reproductive System

B--The Reproductive System

Filters

The normal core temperature is 98.6 $\degree$ F (37 $\degree$ C).

The energy equivalent of O₂ is