Neurobiology MCQs are very important test and often asked by various testing services and competitive exams around the world. Here you will find all the Important Neurobiology MCQs for Preparation.
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Neurobiology Online MCQs with Answers
Which of the following is the basic functional unit of the nervous system?
a) Neuron
b) Neurotransmitter
c) Synapse
d) Glial cell
Which part of the neuron receives signals from other neurons?
a) Axon
b) Dendrite
c) Cell body
d) Myelin sheath
The electrical signal that travels along the axon of a neuron is called:
a) Action potential
b) Resting potential
c) Synaptic transmission
d) Graded potential
Neurotransmitters are released from the axon terminals into the:
a) Synaptic cleft
b) Dendrites
c) Cell body
d) Myelin sheath
The process by which a neuron receives, integrates, and transmits information is called:
a) Synaptic transmission
b) Neurotransmission
c) Action potential
d) Signal transduction
Which of the following is the main inhibitory neurotransmitter in the central nervous system?
a) Glutamate
b) Acetylcholine
c) Serotonin
d) Gamma-aminobutyric acid (GABA)
The myelin sheath is primarily composed of:
a) Axons
b) Dendrites
c) Glial cells
d) Neurotransmitters
Which part of the brain is responsible for controlling voluntary movements and motor coordination?
a) Cerebrum
b) Cerebellum
c) Brainstem
d) Thalamus
The part of the neuron that transmits the electrical signal away from the cell body is the:
a) Axon
b) Dendrite
c) Synapse
d) Myelin sheath
Which of the following is responsible for coordinating involuntary functions such as breathing and heartbeat?
a) Cerebrum
b) Cerebellum
c) Brainstem
d) Thalamus
The process by which the strength of a synaptic connection is modified based on neural activity is called:
a) Synaptic transmission
b) Synaptic plasticity
c) Action potential
d) Graded potential
Which neurotransmitter is associated with reward and pleasure in the brain?
a) Dopamine
b) Serotonin
c) Acetylcholine
d) Norepinephrine
The part of the brain responsible for higher cognitive functions, such as thinking and problem-solving, is the:
a) Cerebrum
b) Cerebellum
c) Brainstem
d) Thalamus
The gap between two neurons where neurotransmitters are released is called the:
a) Synaptic cleft
b) Dendrite
c) Cell body
d) Myelin sheath
Which of the following is a major excitatory neurotransmitter in the central nervous system?
a) Glutamate
b) Acetylcholine
c) Serotonin
d) Gamma-aminobutyric acid (GABA)
The part of the brain that relays sensory information to the cerebral cortex is the:
a) Cerebrum
b) Cerebellum
c) Brainstem
d) Thalamus
Which of the following is involved in the formation and consolidation of new memories?
a) Hippocampus
b) Amygdala
c) Hypothalamus
d) Pituitary gland
Which of the following is a type of glial cell that produces myelin in the central nervous system?
a) Astrocyte
b) Microglia
c) Oligodendrocyte
d) Schwann cell
The part of the brain involved in regulating body temperature, hunger, and thirst is the:
a) Hypothalamus
b) Amygdala
c) Hippocampus
d) Pituitary gland
Which of the following is responsible for coordinating visual information in the brain?
a) Occipital lobe
b) Temporal lobe
c) Parietal lobe
d) Frontal lobe
The part of the brain involved in regulating emotions, especially fear and aggression, is the:
a) Hypothalamus
b) Amygdala
c) Hippocampus
d) Pituitary gland
The division of the peripheral nervous system that controls voluntary movements is the:
a) Somatic nervous system
b) Autonomic nervous system
c) Sympathetic nervous system
d) Parasympathetic nervous system
Which of the following is responsible for regulating sleep and wakefulness?
a) Hypothalamus
b) Amygdala
c) Pineal gland
d) Pituitary gland
The part of the brain involved in language processing and speech production is the:
a) Occipital lobe
b) Temporal lobe
c) Parietal lobe
d) Frontal lobe
Which of the following is responsible for regulating the body’s response to stress?
a) Hypothalamus
b) Amygdala
c) Adrenal gland
d) Pituitary gland
The division of the peripheral nervous system that controls involuntary functions is the:
a) Somatic nervous system
b) Autonomic nervous system
c) Sympathetic nervous system
d) Parasympathetic nervous system
Which of the following is responsible for regulating body balance and coordination?
a) Hypothalamus
b) Amygdala
c) Cerebellum
d) Pituitary gland
The part of the brain involved in spatial navigation and memory formation is the:
a) Hippocampus
b) Amygdala
c) Hypothalamus
d) Pituitary gland
Which of the following is a type of glial cell that removes debris and pathogens in the central nervous system?
a) Astrocyte
b) Microglia
c) Oligodendrocyte
d) Schwann cell
The part of the brain responsible for processing auditory information is the:
a) Occipital lobe
b) Temporal lobe
c) Parietal lobe
d) Frontal lobe
Which of the following is responsible for regulating hormone release from the endocrine glands?
a) Hypothalamus
b) Amygdala
c) Pineal gland
d) Pituitary gland
The part of the brain that controls voluntary movement, decision-making, and problem-solving is the:
a) Occipital lobe
b) Temporal lobe
c) Parietal lobe
d) Frontal lobe
Which of the following is a technique used to study brain activity by measuring changes in blood flow?
a) Electroencephalography (EEG)
b) Positron emission tomography (PET)
c) Magnetic resonance imaging (MRI)
d) Computed tomography (CT)
The part of the brain involved in regulating circadian rhythms and melatonin production is the:
a) Hypothalamus
b) Amygdala
c) Pineal gland
d) Pituitary gland
The communication between neurons occurs through:
a) Electrical signals
b) Chemical signals
c) Both electrical and chemical signals
d) None of the above
Which of the following is responsible for regulating body temperature and hunger?
a) Hypothalamus
b) Amygdala
c) Cerebellum
d) Pituitary gland
The part of the brain responsible for processing sensory information is the:
a) Occipital lobe
b) Temporal lobe
c) Parietal lobe
d) Frontal lobe
Which of the following is responsible for regulating emotions and memory formation?
a) Hippocampus
b) Amygdala
c) Hypothalamus
d) Pituitary gland
The part of the neuron that insulates and speeds up the conduction of electrical signals is the:
a) Axon
b) Dendrite
c) Synapse
d) Myelin sheath
Which of the following is responsible for regulating hormone release from the thyroid gland?
a) Hypothalamus
b) Amygdala
c) Thyroid gland
d) Pituitary gland
The process by which new neurons are generated in the brain is called:
a) Synaptic transmission
b) Neurogenesis
c) Action potential
d) Graded potential
Which of the following is responsible for regulating breathing and heart rate?
a) Hypothalamus
b) Amygdala
c) Medulla oblongata
d) Pituitary gland
The part of the brain responsible for processing tactile and spatial information is the:
a) Occipital lobe
b) Temporal lobe
c) Parietal lobe
d) Frontal lobe
Which of the following is responsible for regulating the body’s response to danger or stress?
a) Hypothalamus
b) Amygdala
c) Adrenal gland
d) Pituitary gland
The process by which the strength of a synaptic connection is modified based on neural activity is called:
a) Synaptic transmission
b) Synaptic plasticity
c) Action potential
d) Graded potential
Which of the following is responsible for regulating mood, appetite, and sleep?
a) Hypothalamus
b) Amygdala
c) Cerebellum
d) Pituitary gland
The part of the brain responsible for regulating hormone release from the adrenal glands is the:
a) Hypothalamus
b) Amygdala
c) Adrenal gland
d) Pituitary gland
Which of the following is responsible for regulating muscle coordination and balance?
a) Hypothalamus
b) Amygdala
c) Cerebellum
d) Pituitary gland
The part of the brain involved in regulating the autonomic nervous system is the:
a) Hypothalamus
b) Amygdala
c) Thalamus
d) Pituitary gland
Which of the following is responsible for regulating hormone release from the ovaries and testes?
a) Hypothalamus
b) Amygdala
c) Ovaries
d) Pituitary gland
The part of the brain responsible for processing visual information is the:
a) Occipital lobe
b) Temporal lobe
c) Parietal lobe
d) Frontal lobe
Which of the following is responsible for regulating hormone release from the pancreas?
a) Hypothalamus
b) Amygdala
c) Pancreas
d) Pituitary gland
The process by which electrical signals travel along the axon of a neuron is called:
a) Synaptic transmission
b) Neurotransmission
c) Action potential
d) Graded potential
Which of the following is responsible for regulating hormone release from the adrenal glands?
a) Hypothalamus
b) Amygdala
c) Adrenal gland
d) Pituitary gland
The part of the brain responsible for processing language and auditory information is the:
a) Occipital lobe
b) Temporal lobe
c) Parietal lobe
d) Frontal lobe
Which of the following is responsible for regulating hormone release from the thyroid gland?
a) Hypothalamus
b) Amygdala
c) Thyroid gland
d) Pituitary gland
The part of the brain responsible for processing sensory information and spatial awareness is the:
a) Occipital lobe
b) Temporal lobe
c) Parietal lobe
d) Frontal lobe
Which of the following is responsible for regulating hormone release from the pituitary gland?
a) Hypothalamus
b) Amygdala
c) Adrenal gland
d) Pituitary gland
The part of the brain responsible for regulating sleep and wakefulness is the:
a) Hypothalamus
b) Amygdala
c) Pineal gland
d) Pituitary gland
Which of the following is responsible for regulating hormone release from the pineal gland?
a) Hypothalamus
b) Amygdala
c) Pineal gland
d) Pituitary gland
The process by which a neuron receives and integrates signals from other neurons is called:
a) Synaptic transmission
b) Neurotransmission
c) Action potential
d) Synaptic integration
Which of the following is responsible for regulating hormone release from the hypothalamus?
a) Hypothalamus
b) Amygdala
c) Thalamus
d) Pituitary gland
The part of the brain responsible for regulating voluntary movements and motor coordination is the:
a) Cerebrum
b) Cerebellum
c) Brainstem
d) Thalamus
Which of the following is responsible for regulating hormone release from the adrenal glands?
a) Hypothalamus
b) Amygdala
c) Adrenal gland
d) Pituitary gland
The part of the brain responsible for processing visual information and spatial awareness is the:
a) Occipital lobe
b) Temporal lobe
c) Parietal lobe
d) Frontal lobe
Which of the following is responsible for regulating hormone release from the ovaries and testes?
a) Hypothalamus
b) Amygdala
c) Ovaries
d) Pituitary gland
The part of the brain responsible for processing language and speech production is the:
a) Occipital lobe
b) Temporal lobe
c) Parietal lobe
d) Frontal lobe
Which of the following is responsible for regulating hormone release from the pancreas?
a) Hypothalamus
b) Amygdala
c) Pancreas
d) Pituitary gland
The part of the brain responsible for regulating emotions, memory formation, and reward is the:
a) Hippocampus
b) Amygdala
c) Hypothalamus
d) Pituitary gland
Which of the following is responsible for regulating hormone release from the thyroid gland?
a) Hypothalamus
b) Amygdala
c) Thyroid gland
d) Pituitary gland