(Portage) BIOD322 - Mod 5 Movement - Final Assessment Guide .(Portage) BIOD322 - Mod 5 Movement - Final Assessment Guide .(Portage) BIOD322 - Mod 5 Movement - Final Assessment Guide .(Portage) BIOD322 - Mod 5 Movement - Final Assessment Guide .
,1. What is the primary neurotransmitter involved in the initiation
of voluntary movement?
A) Acetylcholine
B) Dopamine
C) Serotonin
D) GABA
Correct Answer: B) Dopamine
Rationale: Dopamine is crucial for the initiation of voluntary
movements as it is a key neurotransmitter in the motor pathways,
particularly within the basal ganglia.
2. During a sprint, which type of muscle fiber is predominantly
used?
A) Type I fibers
B) Type IIa fibers
C) Type IIb fibers
D) Type III fibers
Correct Answer: C) Type IIb fibers
, Rationale: Type IIb fibers are fast-twitch fibers that provide short
bursts of power and speed, which are essential during a sprint.
3. Which area of the brain is primarily responsible for the
coordination of complex movements?
A) Precentral gyrus
B) Basal ganglia
C) Cerebellum
D) Postcentral gyrus
Correct Answer: C) Cerebellum
Rationale: The cerebellum plays a critical role in the
coordination and timing of movements, making it essential for
complex motor tasks.
, 5. Which principle explains the phenomenon of motor
redundancy?
A) Henneman's size principle
B) Principle of least action
C) Equilibrium point hypothesis
D) Synergistic action principle
Correct Answer: D) Synergistic action principle
Rationale: The synergistic action principle accounts for the body's
ability to achieve the same movement outcome using different
muscle groups, demonstrating motor redundancy.
6. In the context of motor learning, what does the term 'plasticity'
refer to?
A) The ability of muscles to stretch
B) The adaptability of the nervous system
C) The rigidity of skeletal structures
D) The viscosity of synovial fluid
Correct Answer: B) The adaptability of the nervous system
Rationale: Plasticity refers to the nervous system's ability to
change and adapt, which is a fundamental aspect of motor learning
and skill acquisition.
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