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NSC 3361 EXAM 3 Questions and Answers
(100% Correct Answers) Already Graded A+
Movements Ans: Simple reflexes with brief muscle activation
EX: eyeblink, hiccup, finger twitch
Acts (action patterns) Ans: Complex, sequential movements
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EX: honking car horn, writing name, playing guitar
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Motor plan (motor program) Ans: Set of muscle commands established
before the action occurs
Motoric Ans: Most of brain movement
Preparing to move, moving, correcting movement
Point of brain = guide movement
Control mechanisms Ans: Optimize accuracy and speed
1. Open-loop control
2. Closed-loop control
Open-loop Ans: Maximizes speed
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No guiding external feedback
Ballistic movements
Ballistic movements Ans: Open-Loop Control System
Advantage: fast
Disadvantage: not accurate, till carried out despite errors
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-Less attention
-Doesn't require sensory feedback
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-All-or-nothing
-For well-learned acts
closed-loop Ans: Maximizes accuracy
External feedback guides movement
Fine movements
Disadvantage: slow
Processes sensory feedback
Ramp movements
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Ramp movements Ans: Closed-Loop Control System
aka smooth movements
slower, sustained motions guided by feedback
Good for learning new skills
hierarchy of motor control Ans: skeletal system & muscles
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spinal cord
brainstem
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primary motor cortex
nonprimary motor cortex
cerebellum & basal ganglisa
motor cortex Ans: plans, initiates, directs voluntary movement
Inhibits reflex behaviors so they don't interfere w/ voluntary movements
primary motor cortex Ans: initiates commands for action
Changes as a result of learning
EX: early music training = expansion of motor cortex
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nonprimary motor cortex Ans: initiates cortical processing
Anterior to M1/primary motor cortex
1. SMA encodes
2. Premotor cortex fire before
brainstem (movement) Ans: Integrates motor commands
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-basic movements & postural control
skeletal system & muscles Ans: power movement
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spinal cord Ans: controls skeletal muscles
upper motor neurons Ans: from brain to spinal cord to dorsal horn
lower motor neurons Ans: dorsal horn to muscle (where synapses out of
CNS)
antagonists Ans: Muscles that contract when other extends
At rest, muscles = balanced
EX: biceps and triceps
You're trying to pick up something and bicep contracts, what's that?
Tremor Ans: Alternation of flexor-extensor contraction
1
NSC 3361 EXAM 3 Questions and Answers
(100% Correct Answers) Already Graded A+
Movements Ans: Simple reflexes with brief muscle activation
EX: eyeblink, hiccup, finger twitch
Acts (action patterns) Ans: Complex, sequential movements
© 2026 Assignment Expert
EX: honking car horn, writing name, playing guitar
Guru01 - Stuvia
Motor plan (motor program) Ans: Set of muscle commands established
before the action occurs
Motoric Ans: Most of brain movement
Preparing to move, moving, correcting movement
Point of brain = guide movement
Control mechanisms Ans: Optimize accuracy and speed
1. Open-loop control
2. Closed-loop control
Open-loop Ans: Maximizes speed
,For Expert help and assignment handling,
2
No guiding external feedback
Ballistic movements
Ballistic movements Ans: Open-Loop Control System
Advantage: fast
Disadvantage: not accurate, till carried out despite errors
© 2026 Assignment Expert
-Less attention
-Doesn't require sensory feedback
Guru01 - Stuvia
-All-or-nothing
-For well-learned acts
closed-loop Ans: Maximizes accuracy
External feedback guides movement
Fine movements
Disadvantage: slow
Processes sensory feedback
Ramp movements
,For Expert help and assignment handling,
3
Ramp movements Ans: Closed-Loop Control System
aka smooth movements
slower, sustained motions guided by feedback
Good for learning new skills
hierarchy of motor control Ans: skeletal system & muscles
© 2026 Assignment Expert
spinal cord
brainstem
Guru01 - Stuvia
primary motor cortex
nonprimary motor cortex
cerebellum & basal ganglisa
motor cortex Ans: plans, initiates, directs voluntary movement
Inhibits reflex behaviors so they don't interfere w/ voluntary movements
primary motor cortex Ans: initiates commands for action
Changes as a result of learning
EX: early music training = expansion of motor cortex
, For Expert help and assignment handling,
4
nonprimary motor cortex Ans: initiates cortical processing
Anterior to M1/primary motor cortex
1. SMA encodes
2. Premotor cortex fire before
brainstem (movement) Ans: Integrates motor commands
© 2026 Assignment Expert
-basic movements & postural control
skeletal system & muscles Ans: power movement
Guru01 - Stuvia
spinal cord Ans: controls skeletal muscles
upper motor neurons Ans: from brain to spinal cord to dorsal horn
lower motor neurons Ans: dorsal horn to muscle (where synapses out of
CNS)
antagonists Ans: Muscles that contract when other extends
At rest, muscles = balanced
EX: biceps and triceps
You're trying to pick up something and bicep contracts, what's that?
Tremor Ans: Alternation of flexor-extensor contraction
