Exploring Motor Functions and Neural Control in the CNS

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| By Thames
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Thames
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Quizzes Created: 8156 | Total Attempts: 9,588,805
| Questions: 26 | Updated: Aug 4, 2025
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1. What is the function of the Caudate Circuit?

Explanation

The Caudate Circuit is responsible for cognitive planning of motor patterns through the basal ganglia to achieve conscious goals.

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About This Quiz
Exploring Motor Functions and Neural Control In The CNS - Quiz

Explore the complexities of motor functions within the central nervous system through focused assessments. This content delves into neural mechanisms controlling movement, essential for students and professionals in neuroscience and neurology, enhancing understanding and application in clinical or research settings.

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2. What neurotransmitters are involved with the brainstem?

Explanation

The neurotransmitters listed in the answer are known to be involved in the brainstem for various functions related to control signals.

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3. What is the role of dopamine in the brain?

Explanation

Dopamine is a neurotransmitter that plays a key role in reward-motivated behavior, movement control, and regulation of mood. It is created in the substantia nigra, part of the basal ganglia, and can have both excitatory and inhibitory effects depending on the receptors it binds to.

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4. Which neurotransmitters are involved in movement control in the basal ganglia?

Explanation

The correct answer includes ACh, GABA, and Dopamine as the neurotransmitters involved in movement control in the basal ganglia.

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5. What are the functions of the Basal Ganglia?

Explanation

The Basal Ganglia is primarily involved in the functions related to learned patterns of movements, planning multiple sequential and parallel movements, dimensions, thinking, and planning. It is not directly related to digestion, vision processing, or respiratory control.

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6. What are the 3 structures of the midbrain?

Explanation

The midbrain consists of the brainstem, pons, and medulla. The hypothalamus, thalamus, and cerebellum are parts of the brain, but they are not part of the midbrain specifically.

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7. What is the function of the Vestibular Nuclei in the brain stem?

Explanation

The Vestibular Nuclei in the brain stem are responsible for maintaining balance in the body by receiving input from the inner ear.

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8. What is the function of the Vestibulospinal & reticulospinal tracts?

Explanation

The Vestibulospinal & reticulospinal tracts are specifically responsible for descending into the spinal cord, exciting or inhibiting the anterior motor neurons, controlling the body's actual musculature, and keeping the spinal cord straight. They do not regulate heart rate, control digestion, or manage the respiratory system.

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9. Which device is commonly used to measure motor function in the brain?

Explanation

MRI is a common imaging technique used to visualize internal structures of the body including the brain. It is particularly effective in evaluating motor functions in the brain. CT Scan, EEG, and PET Scan are also imaging techniques but are not specifically used for measuring motor function in the brain.

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10. How are functional areas of the human cerebral cortex determined?

Explanation

Functional areas of the human cerebral cortex are determined through direct methods such as electrical stimulation during surgeries and neurological examinations in patients with brain damage. Genetic testing, EEG technology, and MRI scans cannot directly pinpoint functional areas within the cortex.

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11. What is the term for omitting a value in a sequence?

Explanation

The correct term for omitting a value in a sequence is 'SKIP'. When the term 'SKIP' is used, it means that the value is intentionally ignored or not processed at that point in the sequence.

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12. What are the 3 main types of Neurons?

Explanation

The main types of neurons are classified as motor neurons, sensory neurons, and interneurons. Granular, fusiform, and pyramidal neurons are subtypes within these categories.

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13. What are the primary layers involved in the cerebral control of motor function?

Explanation

The correct answer explains the involved layers in the cerebral control of motor function, with Layer IV for incoming signals, Layers V and IV for output signals, and Layers I, II, and III for intracortical associative functions.

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14. What is the function of Broca's Area in the brain?

Explanation

Broca's Area is primarily responsible for word formation and controlling speech. When this area is damaged, individuals may find it impossible to speak entire words.

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15. What is a neuronal tract?

Explanation

A neuronal tract specifically refers to the bundle of axons from different neurons coming together to form a pathway for nerve impulses. The other options do not accurately describe a neuronal tract.

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16. Where do the fibers from the pyramidal cells have to cross-over to reach the spinal tract?

Explanation

The fibers from the pyramidal cells have to cross-over at the Medulla Oblongata in the brainstem before reaching the spinal tract. This crossover is known as the decussation of the pyramids.

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17. What are the characteristics of the Internal Capsule?

Explanation

The Internal Capsule is a structure located in the brain which has important functions related to neuronal message transduction. It is found in the pons, medulla, and thalamus, and has a significant blood supply. Tumors can also develop in this region affecting neurological functions.

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18. What 3 structures receive strong motor signals from the corticospinal system every time a signal is transmitted down the spinal cord to cause a motor activity?

Explanation

The correct answer includes the structures that receive strong motor signals from the corticospinal system. The incorrect answers are structures that do not receive these signals in the same way as the basal ganglia, brain stem, and cerebrum.

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19. What is the primary function of the motor cortex?

Explanation

The motor cortex is primarily involved in initiating voluntary movements and coordinates with other brain regions to carry out the planned motor actions.

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20. What are the 3 divisions of the motor cortex?

Explanation

The motor cortex is primarily responsible for planning, control, and execution of voluntary movements. The three divisions mentioned are crucial for motor function.

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21. What is the path of the Pyramidal System (Aka- Corticospinal Tract)?

Explanation

The Pyramidal System (Corticospinal Tract) originates in the cortex, passes through the internal capsule, forms the pyramids in the medulla, crosses over, and then reaches the spinal cord.

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22. What are some functions of the Motor Cortex?

Explanation

The motor cortex is primarily responsible for controlling voluntary movements and is involved in functions such as sending commands, changing intensities, and bypassing cord patterns to use higher-level patterns from the brain stem or cortex.

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23. What is the function of Wernicke's Area in the brain?

Explanation

Wernicke's Area is a region in the brain that is specifically associated with language comprehension. Damage to this area can result in difficulties understanding and producing language.

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24. What are the effects of malfunctions of the Prefrontal Assoc. Area?

Explanation

Malfunctions of the Prefrontal Assoc. Area lead to limitations in higher intellectual functions, inability to progress toward future goals, control of activities in accordance with moral laws, delays in action until the best option is decided, decreased aggressiveness, and inappropriate social responses.

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25. What is the 'Extrapyramidal System' responsible for?

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26. What is the role of the Putamen Circuit?

Explanation

The Putamen Circuit is a part of the basal ganglia that plays a crucial role in receiving signals from the motor cortex, sending them back for assessment, and continuously evaluating movement patterns.

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What is the function of the Caudate Circuit?
What neurotransmitters are involved with the brainstem?
What is the role of dopamine in the brain?
Which neurotransmitters are involved in movement control in the basal...
What are the functions of the Basal Ganglia?
What are the 3 structures of the midbrain?
What is the function of the Vestibular Nuclei in the brain stem?
What is the function of the Vestibulospinal & reticulospinal...
Which device is commonly used to measure motor function in the brain?
How are functional areas of the human cerebral cortex determined?
What is the term for omitting a value in a sequence?
What are the 3 main types of Neurons?
What are the primary layers involved in the cerebral control of motor...
What is the function of Broca's Area in the brain?
What is a neuronal tract?
Where do the fibers from the pyramidal cells have to cross-over to...
What are the characteristics of the Internal Capsule?
What 3 structures receive strong motor signals from the corticospinal...
What is the primary function of the motor cortex?
What are the 3 divisions of the motor cortex?
What is the path of the Pyramidal System (Aka- Corticospinal Tract)?
What are some functions of the Motor Cortex?
What is the function of Wernicke's Area in the brain?
What are the effects of malfunctions of the Prefrontal Assoc. Area?
What is the 'Extrapyramidal System' responsible for?
What is the role of the Putamen Circuit?
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