1 for specific request mail
EXPH 101 Exam 1 Questions and Correct Answers |
Latest Update
Physical Activity Ans: body movement produced by muscle action that
increases energy expenditure
Exercise Ans: Planned, structured, repetitive, and purposeful physical
activity, done to improve and/or maintain components of physical
fitness
© 2026 Assignment
Exercise Training Ans: planned, structured, repetitive and purposeful
physical activity with the intent to improve a specific aspect of fitness
(aerobic capacity, force production, speed, etc.)
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Rehabilitation Ans: interventions designed to optimize and/or restore
"health" in individuals with health conditions or injuries
Two major parts of human nervous system Ans: Central Nervous System
(CNS) and peripheral nervous system (PNS)
Central Nervous System Ans: consisting of the brain and spinal cord
Peripheral Nervous System Ans: consisting of nerves that transmit
information to and from the CNS
Neuromuscular System Ans: coordination and integration of the
muscles of the body together with the nerves that supply them, how the
nervous system adapts for different movements
How is the neuromuscular system affected by exercise? Ans: exercise
training induces adaptations in all sections of the neuromuscular system,
beginning in the higher brain centers and continuing down to the level of
individual fibers
Motor Unit Ans: consists of the alpha motor neuron and all the muscle
fibers it innervates and is the FUNCTIONAL UNIT OF MOVEMENT. Each
, 2 for specific request mail
muscle fiber generally only receives input from one motor neuron, but a
motor neuron may innervate many muscle fibers
Complex Learned Movements Ans: the effective application of force
during complex learned movements depends on a series or coordinated
neuromuscular patterns, not just on muscle strength. Practicing certain
movements makes neurons more efficient at what you want them to do
Skeletal Muscle Fiber Ans: muscle fibers are elongated and multi-
nucleated, allows each nucleus to transcriptionally control only that
© 2026 Assignment
portion of the fiber, nuclei resides under the muscle fiber membrane,
NOT IN THE MIDDLE
What is the structure of muscle "cells" (muscle fibers) Ans: whole
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Expert
muscle -> muscle fiber -> sarcomere -> muscle proteins
What produces muscle contractions Ans: actin and myosin
Sliding Filament Theory Ans: muscle contracts when the 2 filaments
(actin and myosin) slide past each other, actin and myosin do not change
size they move and as they move the sarcomere changes size, myosin is
a motor protein that uses ATP and interacts with Actin.
What are longer muscles better for? Ans: velocity and range of motion
What are shorter muscles better for? Ans: run at angle, more force
production and power production
Force-Velocity Relationship Ans: max isometric force results in no more
movement
Force Velocity Curve Ans: maximum force for strength, mix of force and
velocity for power, maximum velocity for speed
Slow Twitch Vs. Fast Twitch Muscle Fibers Ans: endurance athletes
possess predominantly slow twitch fibers, anaerobic athletes possess
predominantly fast twitch fibers. Untrained individuals possess 45-55%
EXPH 101 Exam 1 Questions and Correct Answers |
Latest Update
Physical Activity Ans: body movement produced by muscle action that
increases energy expenditure
Exercise Ans: Planned, structured, repetitive, and purposeful physical
activity, done to improve and/or maintain components of physical
fitness
© 2026 Assignment
Exercise Training Ans: planned, structured, repetitive and purposeful
physical activity with the intent to improve a specific aspect of fitness
(aerobic capacity, force production, speed, etc.)
Guru01 - Stuvia
Expert
Rehabilitation Ans: interventions designed to optimize and/or restore
"health" in individuals with health conditions or injuries
Two major parts of human nervous system Ans: Central Nervous System
(CNS) and peripheral nervous system (PNS)
Central Nervous System Ans: consisting of the brain and spinal cord
Peripheral Nervous System Ans: consisting of nerves that transmit
information to and from the CNS
Neuromuscular System Ans: coordination and integration of the
muscles of the body together with the nerves that supply them, how the
nervous system adapts for different movements
How is the neuromuscular system affected by exercise? Ans: exercise
training induces adaptations in all sections of the neuromuscular system,
beginning in the higher brain centers and continuing down to the level of
individual fibers
Motor Unit Ans: consists of the alpha motor neuron and all the muscle
fibers it innervates and is the FUNCTIONAL UNIT OF MOVEMENT. Each
, 2 for specific request mail
muscle fiber generally only receives input from one motor neuron, but a
motor neuron may innervate many muscle fibers
Complex Learned Movements Ans: the effective application of force
during complex learned movements depends on a series or coordinated
neuromuscular patterns, not just on muscle strength. Practicing certain
movements makes neurons more efficient at what you want them to do
Skeletal Muscle Fiber Ans: muscle fibers are elongated and multi-
nucleated, allows each nucleus to transcriptionally control only that
© 2026 Assignment
portion of the fiber, nuclei resides under the muscle fiber membrane,
NOT IN THE MIDDLE
What is the structure of muscle "cells" (muscle fibers) Ans: whole
Guru01 - Stuvia
Expert
muscle -> muscle fiber -> sarcomere -> muscle proteins
What produces muscle contractions Ans: actin and myosin
Sliding Filament Theory Ans: muscle contracts when the 2 filaments
(actin and myosin) slide past each other, actin and myosin do not change
size they move and as they move the sarcomere changes size, myosin is
a motor protein that uses ATP and interacts with Actin.
What are longer muscles better for? Ans: velocity and range of motion
What are shorter muscles better for? Ans: run at angle, more force
production and power production
Force-Velocity Relationship Ans: max isometric force results in no more
movement
Force Velocity Curve Ans: maximum force for strength, mix of force and
velocity for power, maximum velocity for speed
Slow Twitch Vs. Fast Twitch Muscle Fibers Ans: endurance athletes
possess predominantly slow twitch fibers, anaerobic athletes possess
predominantly fast twitch fibers. Untrained individuals possess 45-55%
