12 Flashcards
What are the two main divisions of the nervous system?
A) Central and Peripheral
B) Sensory and Motor
C) Sympathetic and Parasympathetic
D) Brain and Spinal Cord
Answer: A) Central and Peripheral
Which part of the nervous system is responsible for involuntary actions?
A) Somatic Nervous System
B) Autonomic Nervous System
C) Central Nervous System
D) Peripheral Nervous System
Answer: B) Autonomic Nervous System
What is the primary function of sensory neurons?
A) Send signals to muscles
B) Process information
C) Carry signals from sensory organs to the brain
D) Connect different parts of the nervous system
Answer: C) Carry signals from sensory organs to the brain
Which type of neuron transmits signals from the brain to muscles?
A) Sensory neurons
B) Interneurons
C) Motor neurons
D) Glial cells
Answer: C) Motor neurons
What is the role of the myelin sheath?
A) Protects the neuron
B) Increases the speed of nerve impulse conduction
C) Provides nutrients to the neuron
D) Connects neurons to muscles
Answer: B) Increases the speed of nerve impulse conduction
What is the function of glial cells?
A) Transmit nerve impulses
B) Support and protect neurons
C) Generate electrical signals
D) Form synapses
Answer: B) Support and protect neurons
Which part of the nervous system contains the brain and spinal cord?
A) Peripheral Nervous System
B) Central Nervous System
C) Autonomic Nervous System
D) Somatic Nervous System
Answer: B) Central Nervous System
The part of the neuron that receives signals from other neurons is called the:
A) Axon
B) Dendrite
C) Synapse
D) Soma
Answer: B) Dendrite
What structure connects neurons at their synapses?
A) Neurotransmitters
B) Dendrites
C) Axon terminals
D) Nodes of Ranvier
Answer: A) Neurotransmitters
Which part of the brain is responsible for regulating basic bodily functions such as heart rate and breathing?
A) Cerebellum
B) Brainstem
C) Thalamus
D) Cerebral cortex
Answer: B) Brainstem
What is the role of the hypothalamus?
A) Regulates motor control
B) Processes sensory information
C) Controls body temperature and hunger
D) Manages emotions
Answer: C) Controls body temperature and hunger
Which nervous system division is responsible for the ‘fight or flight’ response?
A) Sympathetic Nervous System
B) Parasympathetic Nervous System
C) Somatic Nervous System
D) Central Nervous System
Answer: A) Sympathetic Nervous System
Which structure in the neuron transmits impulses away from the cell body?
A) Dendrite
B) Axon
C) Synapse
D) Glial cell
Answer: B) Axon
What type of cell produces myelin in the central nervous system?
A) Schwann cells
B) Oligodendrocytes
C) Astrocytes
D) Microglia
Answer: B) Oligodendrocytes
Which part of the autonomic nervous system helps calm the body down after stress?
A) Sympathetic
B) Parasympathetic
C) Central
D) Somatic
Answer: B) Parasympathetic
The somatic nervous system is primarily responsible for:
A) Involuntary muscle control
B) Voluntary muscle control
C) Sensory processing
D) Reflex actions
Answer: B) Voluntary muscle control
What is the function of the spinal cord?
A) Process higher-order functions
B) Relay signals between the brain and the body
C) Produce hormones
D) Control balance
Answer: B) Relay signals between the brain and the body
Which neurotransmitter is most commonly associated with mood regulation?
A) Acetylcholine
B) Dopamine
C) Serotonin
D) Norepinephrine
Answer: C) Serotonin
What does the reflex arc involve?
A) Only the brain
B) Only the spinal cord
C) Sensory input, spinal cord, and motor output
D) Sensory input, brain, and motor output
Answer: C) Sensory input, spinal cord, and motor output
Which type of glial cell helps maintain the blood-brain barrier?
A) Microglia
B) Oligodendrocytes
C) Astrocytes
D) Ependymal cells
Answer: C) Astrocytes
The area of the brain responsible for coordination and balance is the:
A) Cerebral cortex
B) Brainstem
C) Cerebellum
D) Limbic system
Answer: C) Cerebellum
Which part of the brain is involved in higher-level cognitive functions such as thinking and planning?
A) Occipital lobe
B) Temporal lobe
C) Frontal lobe
D) Parietal lobe
Answer: C) Frontal lobe
What is the primary function of the medulla oblongata?
A) Higher-order thinking
B) Relaying sensory information
C) Controlling autonomic functions
D) Coordinating movement
Answer: C) Controlling autonomic functions
Which structure is responsible for processing visual information?
A) Temporal lobe
B) Occipital lobe
C) Parietal lobe
D) Frontal lobe
Answer: B) Occipital lobe
The role of the thalamus is to:
A) Control balance
B) Process and relay sensory information
C) Regulate emotions
D) Store long-term memory
Answer: B) Process and relay sensory information
What is the primary role of the sympathetic nervous system?
A) Promote relaxation
B) Prepare the body for action
C) Regulate digestion
D) Control voluntary movement
Answer: B) Prepare the body for action
Which type of neuron connects sensory and motor neurons?
A) Sensory neurons
B) Motor neurons
C) Interneurons
D) Glial cells
Answer: C) Interneurons
What is the function of acetylcholine in the nervous system?
A) Inhibits nerve impulses
B) Promotes muscle contraction
C) Regulates sleep
D) Enhances memory
Answer: B) Promotes muscle contraction
The main function of the peripheral nervous system is to:
A) Process information
B) Connect the central nervous system to the limbs and organs
C) Control involuntary functions
D) Regulate body temperature
Answer: B) Connect the central nervous system to the limbs and organs
Which area of the brain is involved in processing auditory information?
A) Occipital lobe
B) Parietal lobe
C) Temporal lobe
D) Frontal lobe
Answer: C) Temporal lobe
