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Test: Neural Control & Coordination - 2 - NEET MCQ


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20 Questions MCQ Test - Test: Neural Control & Coordination - 2

Test: Neural Control & Coordination - 2 for NEET 2024 is part of NEET preparation. The Test: Neural Control & Coordination - 2 questions and answers have been prepared according to the NEET exam syllabus.The Test: Neural Control & Coordination - 2 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Neural Control & Coordination - 2 below.
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Test: Neural Control & Coordination - 2 - Question 1
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What type of cells are neurons in terms of their membrane potential?

Detailed Solution for Test: Neural Control & Coordination - 2 - Question 1
Neurons are excitable cells because their membranes can rapidly change their state in response to stimuli, shifting between polarized and depolarized states.
Test: Neural Control & Coordination - 2 - Question 2
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Which part of the neuron receives incoming signals from other cells?

Detailed Solution for Test: Neural Control & Coordination - 2 - Question 2
Dendrites are structures on neurons that receive electrical messages. These messages are the basis for neurons communicating with each other.
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Test: Neural Control & Coordination - 2 - Question 3
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What is the function of the myelin sheath in a myelinated nerve fiber?

Detailed Solution for Test: Neural Control & Coordination - 2 - Question 3
The myelin sheath provides electrical insulation and increases the speed at which impulses propagate along the myelinated fiber due to saltatory conduction.
Test: Neural Control & Coordination - 2 - Question 4
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Which part of the human brain is responsible for regulating thirst and hunger?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 4
The hypothalamus is involved in various functions of the body including the regulation of thirst and hunger.
Test: Neural Control & Coordination - 2 - Question 5
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Where is the cerebral cortex located?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 5
The cerebral cortex is the outer layer of the cerebrum, involved in many complex brain functions such as thought, memory, and action.
Test: Neural Control & Coordination - 2 - Question 6
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What type of synapse allows for direct flow of electrical signals between neurons?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 6
Electrical synapses allow electric currents to directly pass from one neuron to another, facilitating faster communication.
Test: Neural Control & Coordination - 2 - Question 7
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What is the role of neurotransmitters in a chemical synapse?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 7
In chemical synapses, neurotransmitters are crucial for transmitting signals from one neuron to the next across the synaptic cleft.
Test: Neural Control & Coordination - 2 - Question 8
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What establishes the resting potential of a neuron?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 8
The resting potential is established by the concentration gradient of ions across the neuron's membrane, maintained by the sodium-potassium pump.
Test: Neural Control & Coordination - 2 - Question 9
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What occurs during the depolarization phase of an action potential?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 9
During depolarization, sodium ions flood into the neuron, reversing the polarity of the membrane at that site.
Test: Neural Control & Coordination - 2 - Question 10
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What is the main role of the cerebellum in the human brain?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 10
The cerebellum primarily handles motor control and balance, coordinating voluntary movements such as posture, balance, coordination, and speech.
Test: Neural Control & Coordination - 2 - Question 11
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Which structure connects the two hemispheres of the cerebrum?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 11
The corpus callosum is a band of nerve fibers that connects the two cerebral hemispheres, facilitating communication between them.
Test: Neural Control & Coordination - 2 - Question 12
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Which neurons transmit impulses towards the central nervous system?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 12
Afferent neurons, also known as sensory neurons, carry nerve impulses from sensory stimuli towards the central nervous system.
Test: Neural Control & Coordination - 2 - Question 13
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What is the main function of the autonomic nervous system?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 13
The autonomic nervous system regulates involuntary bodily functions, such as heart rate, digestion, and respiratory rate.
Test: Neural Control & Coordination - 2 - Question 14
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Which brain structure is responsible for processing visual and auditory information?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 14
The midbrain plays a crucial role in processing auditory and visual sensory information.
Test: Neural Control & Coordination - 2 - Question 15
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Which part of the human neural system includes the brain and spinal cord?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 15
The central neural system (CNS) consists of the brain and spinal cord, acting as the main control center for the body.
Test: Neural Control & Coordination - 2 - Question 16
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What is the function of Schwann cells in the peripheral nervous system?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 16
Schwann cells are essential for the insulation of myelinated nerve fibers in the peripheral nervous system, and they also aid in the repair of damaged nerves.
Test: Neural Control & Coordination - 2 - Question 17
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Which part of the brain is known as the "master clock" for regulating circadian rhythms?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 17
The hypothalamus contains structures that are crucial for regulating circadian rhythms, acting as the master clock of the body.
Test: Neural Control & Coordination - 2 - Question 18
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How do ions contribute to the resting potential of a neuron?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 18
The resting potential of a neuron is maintained by a high concentration of potassium ions inside and sodium ions outside the cell, facilitated by the sodium-potassium pump.
Test: Neural Control & Coordination - 2 - Question 19
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What is the role of the limbic system in the brain?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 19
The limbic system is involved in various emotional responses, sexual behavior, and motivation, contributing to the psychological and behavioral aspects of the organism.
Test: Neural Control & Coordination - 2 - Question 20
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What distinguishes a chemical synapse from an electrical synapse?
Detailed Solution for Test: Neural Control & Coordination - 2 - Question 20
The main difference between chemical and electrical synapses is the use of neurotransmitters at chemical synapses to transmit signals across the synaptic cleft, unlike direct electrical continuity found in electrical synapses.
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