Question 1

Vasoconstriction of the blood vessels to the skin

Accepted Answer

A)  is coordinated by the sympathetic nervous system. 
B)  lowers heat exchange with the environment. 
C)  occurs when core body temperature is elevated. 
D)  both (a) and (b) above 
E)  all of these answers. 
A)  is coordinated by the sympathetic nervous system. 
B)  lowers heat exchange with the environment. 
C)  occurs when core body temperature is elevated. 
D)  both (a) and (b) above 
E)  all of these answers.

Question 2

Skin temperatures may fluctuate between ___°F and ____ °F without damage

Accepted Answer

A)  40-98.6 
B)  68-104 
C)  0-98.6 
D)  0-110 
E)  none of the above 
A)  40-98.6 
B)  68-104 
C)  0-98.6 
D)  0-110 
E)  none of the above

Question 3

The presence of skin blood vessels diminishes the effectiveness of the skin as an insulator.

Accepted Answer

A) True 
 B)False

Question 4

The number of obese adults in the United States is 75% higher now than it was 15 years ago.

Accepted Answer

A) True 
 B)False

Question 5

Sweating

Accepted Answer

A)  causes vasodilation of the skin vessels. 
B)  increases the insulative capacity of the skin so that less heat can be gained from the environment. 
C)  is the only heat-loss mechanism available to the body when the environmental temperature is so high that a normal temperature gradient between the skin and the environment cannot be established. 
D)  both (a) and (c) above. 
E)  all of these answers. 
A)  causes vasodilation of the skin vessels. 
B)  increases the insulative capacity of the skin so that less heat can be gained from the environment. 
C)  is the only heat-loss mechanism available to the body when the environmental temperature is so high that a normal temperature gradient between the skin and the environment cannot be established. 
D)  both (a) and (c) above. 
E)  all of these answers.

Question 6

Each of the following is a means of generating or holding heat in the body except

Accepted Answer

A)  diminished sweating. 
B)  exercising. 
C)  shivering. 
D)  vasodilation of blood vessels in the skin. 
E)  behavioral adaptations. 
A)  diminished sweating. 
B)  exercising. 
C)  shivering. 
D)  vasodilation of blood vessels in the skin. 
E)  behavioral adaptations.

Question 7

The temperature control center within the anterior region of the hypothalamus is activated by ____ and initiates reflexes that mediate ____.

Accepted Answer

A)  cold, heat production and heat conservation. 
B)  cold, heat loss. 
C)  warmth, heat loss. 
D)  warmth, heat production and heat conservation. 
E)  warmth, vasoconstriction. 
A)  cold, heat production and heat conservation. 
B)  cold, heat loss. 
C)  warmth, heat loss. 
D)  warmth, heat production and heat conservation. 
E)  warmth, vasoconstriction.

Question 8

Match the chemical messenger to the characteristics. Answers may be used only once.
-produced by cells in arcuate nucleus, suppresses appetite

Accepted Answer

A) Ghrelin 
B) PYY3-36 
C) CCK 
D) Leptin 
E) Neuropeptide Y
F)Melanocortins
G)Insulin
H)thyroid hormone 
A) Ghrelin 
B) PYY3-36 
C) CCK 
D) Leptin 
E) Neuropeptide Y
F)Melanocortins
G)Insulin
H)thyroid hormone

Question 9

insulin plays a role in long-term control of body weight.

Accepted Answer

A) True 
 B)False

Question 10

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)  both (b) and (c) above. 
E)  all of these answers. 
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)  both (b) and (c) above. 
E)  all of these answers.

Question 11

MATCHING
Match the item with its description by writing the appropriate letter in the blank.
-quantity of heat produced per liter of O2 consumed

Accepted Answer

A) energy equivalent of oxygen 
B) external work 
C) calorie 
D) basal metabolic rate 
E) internal work 
A) energy equivalent of oxygen 
B) external work 
C) calorie 
D) basal metabolic rate 
E) internal work

Question 12

When a negative energy balance exists,

Accepted Answer

A)  the body must make use of stored energy reserves. 
B)  the caloric content of the food ingested is less than the energy output. 
C)  the caloric content of the food ingested exceeds the energy lost due to heat or work. 
D)  energy has been destroyed by catabolic processes within the body. 
E)  both (a) and (b) above. 
A)  the body must make use of stored energy reserves. 
B)  the caloric content of the food ingested is less than the energy output. 
C)  the caloric content of the food ingested exceeds the energy lost due to heat or work. 
D)  energy has been destroyed by catabolic processes within the body. 
E)  both (a) and (b) above.

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

Skin vasoconstriction reduces the temperature of the skin.

Accepted Answer

A) True 
 B)False

Question 15

MATCHING
Match the item with its description by writing the appropriate letter in the blank.
-energy expended by contracting skeletal muscles to move external objects or to move the body

Accepted Answer

A) energy equivalent of oxygen 
B) external work 
C) calorie 
D) basal metabolic rate 
E) internal work 
A) energy equivalent of oxygen 
B) external work 
C) calorie 
D) basal metabolic rate 
E) internal work

Question 16

The minimal waking rate of energy expenditure determined under standardized conditions is known as the ____________________.

Accepted Answer

basal meta

Question 17

An elevated body temperature is always indicative of an infection.

Accepted Answer

A) True 
 B)False

Question 18

Which chemical messenger increases food intake?

Accepted Answer

A)  orexin 
B)  melanin 
C)  ACTH 
D)  CRH 
E)  Insulin 
A)  orexin 
B)  melanin 
C)  ACTH 
D)  CRH 
E)  Insulin

Question 19

Oral temperature is lower than the core temperature.

Accepted Answer

A) True 
 B)False

Question 20

The core temperature in women is 0.9°F higher in the last half of the menstrual cycle, from ____________________ to ____________________.

Accepted Answer

ovulation,

Vasoconstriction of the blood vessels to the skin

Skin temperatures may fluctuate between _°F and __ °F without damage

The presence of skin blood vessels diminishes the effectiveness of the skin as an insulator.

The number of obese adults in the United States is 75% higher now than it was 15 years ago.

Sweating

Each of the following is a means of generating or holding heat in the body except

The temperature control center within the anterior region of the hypothalamus is activated by and initiates reflexes that mediate .

Match the chemical messenger to the characteristics. Answers may be used only once. -produced by cells in arcuate nucleus, suppresses appetite

insulin plays a role in long-term control of body weight.

When vasodilation of the blood vessels in the skin occurs,

MATCHING Match the item with its description by writing the appropriate letter in the blank. -quantity of heat produced per liter of O₂ consumed

When a negative energy balance exists,

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

Skin vasoconstriction reduces the temperature of the skin.

MATCHING Match the item with its description by writing the appropriate letter in the blank. -energy expended by contracting skeletal muscles to move external objects or to move the body

The minimal waking rate of energy expenditure determined under standardized conditions is known as the ____________________.

An elevated body temperature is always indicative of an infection.

Which chemical messenger increases food intake?

Oral temperature is lower than the core temperature.

The core temperature in women is 0.9°F higher in the last half of the menstrual cycle, from to .

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division and Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood and Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

The Endocrine System

The Reproductive System

Filters

Exam 16: Energy Balance and Temperature Regulation

Vasoconstriction of the blood vessels to the skin

Skin temperatures may fluctuate between ___°F and ____ °F without damage

The presence of skin blood vessels diminishes the effectiveness of the skin as an insulator.

The number of obese adults in the United States is 75% higher now than it was 15 years ago.

Sweating

Each of the following is a means of generating or holding heat in the body except

The temperature control center within the anterior region of the hypothalamus is activated by ____ and initiates reflexes that mediate ____.

Match the chemical messenger to the characteristics. Answers may be used only once. -produced by cells in arcuate nucleus, suppresses appetite

insulin plays a role in long-term control of body weight.

When vasodilation of the blood vessels in the skin occurs,

MATCHING Match the item with its description by writing the appropriate letter in the blank. -quantity of heat produced per liter of O2 consumed

When a negative energy balance exists,

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

Skin vasoconstriction reduces the temperature of the skin.

MATCHING Match the item with its description by writing the appropriate letter in the blank. -energy expended by contracting skeletal muscles to move external objects or to move the body

The minimal waking rate of energy expenditure determined under standardized conditions is known as the ____________________.

An elevated body temperature is always indicative of an infection.

Which chemical messenger increases food intake?

Oral temperature is lower than the core temperature.

The core temperature in women is 0.9°F higher in the last half of the menstrual cycle, from ____________________ to ____________________.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division and Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood and Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

The Endocrine System

The Reproductive System

Filters

Skin temperatures may fluctuate between _°F and __ °F without damage

The temperature control center within the anterior region of the hypothalamus is activated by and initiates reflexes that mediate .

MATCHING Match the item with its description by writing the appropriate letter in the blank. -quantity of heat produced per liter of O₂ consumed

The core temperature in women is 0.9°F higher in the last half of the menstrual cycle, from to .