AFAA - Group Fitness Instructor Chapter
3 Exam Actual Questions With 100%
Verified Answers
What is the nervous system? -
correct answer ✅A conglomeration of
billions of cells to provide
a communication network
within the human body.
What is the central nervous system (CNS)? -
correct answer ✅Division of the nervous system
comprising the brain and the
spinal cord; primary function
is to coordinate activity of all
parts of the body.
What is the peripheral nervous system (PNS)? -
correct answer ✅All of the nerve fi bers that
branch off from the spinal
cord and extend to the rest
of the body
,AFAA - Group Fitness Instructor Chapter
3 Exam Actual Questions With 100%
Verified Answers
What is a neuron? -
correct answer ✅Functional unit of the
nervous system.
What are the three main parts of a neuron? -
correct answer ✅cell body, axon, and dendrites
What are mechanoreceptors? -
correct answer ✅Sensory receptors responsible
for sensing change of
position in body tissues.
What is proprioception? -
correct answer ✅Cumulative sensory input to
the central nervous system
from all mechanoreceptors.
What are muscle spindles? -
correct answer ✅Receptors sensitive to
change in length of the
, AFAA - Group Fitness Instructor Chapter
3 Exam Actual Questions With 100%
Verified Answers
muscle, and the rate of that
change.
What are Golgi tendon organs (GTOs)? -
correct answer ✅Receptors sensitive to the
change in tension of the
muscle, and the rate of that
change.
What are myofibrils? -
correct answer ✅Tubular component of muscle
cells containing sarcomeres
and protein fi laments.
What are sarcomeres? -
correct answer ✅Individual contractile units
made up of actin (thin) and
myosin (thick) fi laments.
3 Exam Actual Questions With 100%
Verified Answers
What is the nervous system? -
correct answer ✅A conglomeration of
billions of cells to provide
a communication network
within the human body.
What is the central nervous system (CNS)? -
correct answer ✅Division of the nervous system
comprising the brain and the
spinal cord; primary function
is to coordinate activity of all
parts of the body.
What is the peripheral nervous system (PNS)? -
correct answer ✅All of the nerve fi bers that
branch off from the spinal
cord and extend to the rest
of the body
,AFAA - Group Fitness Instructor Chapter
3 Exam Actual Questions With 100%
Verified Answers
What is a neuron? -
correct answer ✅Functional unit of the
nervous system.
What are the three main parts of a neuron? -
correct answer ✅cell body, axon, and dendrites
What are mechanoreceptors? -
correct answer ✅Sensory receptors responsible
for sensing change of
position in body tissues.
What is proprioception? -
correct answer ✅Cumulative sensory input to
the central nervous system
from all mechanoreceptors.
What are muscle spindles? -
correct answer ✅Receptors sensitive to
change in length of the
, AFAA - Group Fitness Instructor Chapter
3 Exam Actual Questions With 100%
Verified Answers
muscle, and the rate of that
change.
What are Golgi tendon organs (GTOs)? -
correct answer ✅Receptors sensitive to the
change in tension of the
muscle, and the rate of that
change.
What are myofibrils? -
correct answer ✅Tubular component of muscle
cells containing sarcomeres
and protein fi laments.
What are sarcomeres? -
correct answer ✅Individual contractile units
made up of actin (thin) and
myosin (thick) fi laments.
