Principles Of Anatomy And Physiology
12th Edition Question And Answers
|Latest Edition 2025
Which of the following lists best illustrates the idea of increasing levels of complexity?
A. Cells, tissues, organelles, organs, systems
B. Tissues, cells, organs, organelles, systems
C. Organs, organelles, systems, cells, tissues
D. Organelles, cells, tissues, organs, systems
D. Organelles, cells, tissues, organs, systems
This list illustrates the idea of increasing levels of complexity because it starts with organelles,
which are the smallest functional units within a cell. Cells are then formed by the organization of
organelles. Tissues are formed by the organization of cells with similar functions. Organs are
formed by the organization of different tissues working together. Finally, systems are formed by
the organization of multiple organs working together to perform specific functions. This
progression demonstrates an increasing level of complexity as smaller units come together to
form larger and more complex structures.
Anatomy is to ________ as physiology is to ________.
A. Form; structure
B. Growth; form
C. Structure; function
D. Function; form
E. Structure; form
Structure; function
Anatomy is the study of the structure of organisms, while physiology is the study of the function
of organisms. Therefore, the relationship between anatomy and physiology is that anatomy
focuses on the structure of organisms, while physiology focuses on the function of organisms.
Regarding homeostatic mechanisms involved in temperature regulation, the smooth muscle in the
walls of blood vessels supplying the skin act as (the):
A. Control center
B. Integration center
C. Receptors
D. Effectors
Effectors
The smooth muscle in the walls of blood vessels supplying the skin act as effectors in
, temperature regulation. Effectors are the organs or tissues that respond to signals from the
control center to produce a specific response. In this case, when the body needs to cool down,
the control center sends signals to the smooth muscle in the blood vessels to dilate, allowing
more blood flow to the skin surface and facilitating heat loss through radiation and convection.
Conversely, when the body needs to conserve heat, the control center signals the smooth
muscle to constrict, reducing blood flow to the skin and conserving heat.
Which statement is true regarding the negative feedback homeostatic mechanism, which occurs
during temperature regulation?
A. Increased activity in the control center targets skeletal muscle in the extremities.
B. The only receptors for temperature exist in the skin.
C. At normal body temperature, the temperature control center is extremely active.
D. The skin acts like a radiator, losing heat to the environment.
The skin acts like a radiator, losing heat to the environment.
The statement "The skin acts like a radiator, losing heat to the environment" is true regarding
the negative feedback homeostatic mechanism during temperature regulation. The skin plays a
crucial role in regulating body temperature by acting as a radiator, releasing excess heat to the
environment through processes like radiation, conduction, and convection. This helps to
maintain the body temperature within a normal range.
When body temperature rises, a center in the brain initiates physiological changes to decrease the
body temperature. This is an example of
A. Negative feedback.
B. Positive feedback.
C. Nonhomeostatic regulation.
D. Diagnostic regulation.
E. Fever.
Negative feedback.
When body temperature rises, the brain initiates physiological changes to decrease the body
temperature. This is an example of negative feedback because the body's response opposes the
initial change, in this case, the rising temperature. Negative feedback is a regulatory mechanism
that helps maintain homeostasis by counteracting any deviations from the normal range. In this
case, the brain detects the increase in temperature and triggers mechanisms such as sweating
or vasodilation to cool down the body and bring the temperature back to the desired set point
If a response decreases a disturbance, the system is classified as a ________ feedback system.
A. Polarized
B. Neutral
C. Positive
D. Negative
E. Deficit
Negative
A negative feedback system is classified as such because it works to counteract or decrease a
disturbance in the system. It does this by sensing changes in the system and initiating a response
12th Edition Question And Answers
|Latest Edition 2025
Which of the following lists best illustrates the idea of increasing levels of complexity?
A. Cells, tissues, organelles, organs, systems
B. Tissues, cells, organs, organelles, systems
C. Organs, organelles, systems, cells, tissues
D. Organelles, cells, tissues, organs, systems
D. Organelles, cells, tissues, organs, systems
This list illustrates the idea of increasing levels of complexity because it starts with organelles,
which are the smallest functional units within a cell. Cells are then formed by the organization of
organelles. Tissues are formed by the organization of cells with similar functions. Organs are
formed by the organization of different tissues working together. Finally, systems are formed by
the organization of multiple organs working together to perform specific functions. This
progression demonstrates an increasing level of complexity as smaller units come together to
form larger and more complex structures.
Anatomy is to ________ as physiology is to ________.
A. Form; structure
B. Growth; form
C. Structure; function
D. Function; form
E. Structure; form
Structure; function
Anatomy is the study of the structure of organisms, while physiology is the study of the function
of organisms. Therefore, the relationship between anatomy and physiology is that anatomy
focuses on the structure of organisms, while physiology focuses on the function of organisms.
Regarding homeostatic mechanisms involved in temperature regulation, the smooth muscle in the
walls of blood vessels supplying the skin act as (the):
A. Control center
B. Integration center
C. Receptors
D. Effectors
Effectors
The smooth muscle in the walls of blood vessels supplying the skin act as effectors in
, temperature regulation. Effectors are the organs or tissues that respond to signals from the
control center to produce a specific response. In this case, when the body needs to cool down,
the control center sends signals to the smooth muscle in the blood vessels to dilate, allowing
more blood flow to the skin surface and facilitating heat loss through radiation and convection.
Conversely, when the body needs to conserve heat, the control center signals the smooth
muscle to constrict, reducing blood flow to the skin and conserving heat.
Which statement is true regarding the negative feedback homeostatic mechanism, which occurs
during temperature regulation?
A. Increased activity in the control center targets skeletal muscle in the extremities.
B. The only receptors for temperature exist in the skin.
C. At normal body temperature, the temperature control center is extremely active.
D. The skin acts like a radiator, losing heat to the environment.
The skin acts like a radiator, losing heat to the environment.
The statement "The skin acts like a radiator, losing heat to the environment" is true regarding
the negative feedback homeostatic mechanism during temperature regulation. The skin plays a
crucial role in regulating body temperature by acting as a radiator, releasing excess heat to the
environment through processes like radiation, conduction, and convection. This helps to
maintain the body temperature within a normal range.
When body temperature rises, a center in the brain initiates physiological changes to decrease the
body temperature. This is an example of
A. Negative feedback.
B. Positive feedback.
C. Nonhomeostatic regulation.
D. Diagnostic regulation.
E. Fever.
Negative feedback.
When body temperature rises, the brain initiates physiological changes to decrease the body
temperature. This is an example of negative feedback because the body's response opposes the
initial change, in this case, the rising temperature. Negative feedback is a regulatory mechanism
that helps maintain homeostasis by counteracting any deviations from the normal range. In this
case, the brain detects the increase in temperature and triggers mechanisms such as sweating
or vasodilation to cool down the body and bring the temperature back to the desired set point
If a response decreases a disturbance, the system is classified as a ________ feedback system.
A. Polarized
B. Neutral
C. Positive
D. Negative
E. Deficit
Negative
A negative feedback system is classified as such because it works to counteract or decrease a
disturbance in the system. It does this by sensing changes in the system and initiating a response
