Here below some basic MCQ’s of “Neural control and coordination” with answer which is explained in details. Let’s check one by one which is given below.
MCQ 1:
Which of the following parts of the brain is primarily responsible for coordinating voluntary movements?
A) Cerebellum
B) Medulla oblongata
C) Hypothalamus
D) Thalamus
Answer: A) Cerebellum
Explanation: The cerebellum plays a crucial role in coordinating voluntary movements, balance, and motor control. It ensures that movements are smooth and precise by integrating sensory input with motor commands.
MCQ 2:
Which neurotransmitter is primarily involved in the transmission of signals in the autonomic nervous system?
A) Dopamine
B) Serotonin
C) Acetylcholine
D) Norepinephrine
Answer: C) Acetylcholine
Explanation: Acetylcholine is the primary neurotransmitter used in the autonomic nervous system, especially in the parasympathetic division. It is involved in transmitting signals to target organs, affecting functions like heart rate and digestion.
MCQ 3:
What is the function of the myelin sheath in neurons?
A) To protect the nucleus
B) To speed up the transmission of electrical signals
C) To facilitate neurotransmitter release
D) To store energy
Answer: B) To speed up the transmission of electrical signals
Explanation: The myelin sheath insulates axons, allowing electrical impulses to travel more quickly through saltatory conduction, where the impulse jumps between nodes of Ranvier.
MCQ 4:
Which type of neuron transmits signals from sensory receptors to the central nervous system?
A) Motor neurons
B) Interneurons
C) Sensory neurons
D) Glial cells
Answer: C) Sensory neurons
Explanation: Sensory neurons carry information from sensory receptors (like those for touch, taste, and sight) to the central nervous system for processing.
MCQ 5:
What part of the neuron receives incoming signals?
A) Axon
B) Dendrites
C) Soma
D) Myelin sheath
Answer: B) Dendrites
Explanation: Dendrites are the branches of a neuron that receive signals from other neurons or sensory receptors, conveying this information to the cell body (soma).
MCQ 6:
Which structure in the brain regulates homeostasis, including temperature and hunger?
A) Cerebral cortex
B) Thalamus
C) Hypothalamus
D) Pons
Answer: C) Hypothalamus
Explanation: The hypothalamus is key in regulating many homeostatic functions, including body temperature, hunger, thirst, and circadian rhythms. It helps maintain the body’s internal balance.
MCQ 7:
The ‘fight or flight’ response is primarily controlled by which part of the nervous system?
A) Somatic nervous system
B) Sympathetic nervous system
C) Parasympathetic nervous system
D) Central nervous system
Answer: B) Sympathetic nervous system
Explanation: The sympathetic nervous system activates the body’s ‘fight or flight’ response during stressful situations, preparing the body to respond to perceived threats.
MCQ 8:
Which cells in the nervous system are responsible for supporting and protecting neurons?
A) Neurons
B) Glial cells
C) Myocytes
D) Epithelial cells
Answer: B) Glial cells
Explanation: Glial cells, or neuroglia, provide support, nourishment, and protection for neurons, playing a crucial role in maintaining homeostasis in the nervous system.
MCQ 9:
What is the primary function of the spinal cord?
A) Processing visual information
B) Coordinating muscle movements
C) Transmitting signals between the brain and the body
D) Regulating heart rate
Answer: C) Transmitting signals between the brain and the body
Explanation: The spinal cord serves as a major conduit for information traveling between the brain and peripheral nervous system, facilitating reflex actions and sensory processing.
MCQ 10:
Which type of synapse uses neurotransmitters to transmit signals?
A) Electrical synapse
B) Chemical synapse
C) Mechanical synapse
D) Magnetic synapse
Answer: B) Chemical synapse
Explanation: Chemical synapses use neurotransmitters released from the presynaptic neuron to communicate with the postsynaptic neuron, allowing for modulation of signals.
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