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WorksheetsNervous System Quiz
Total questions: 62
Worksheet time: 31mins
What is the primary function of the nervous system?
Circulate blood throughout the body
Detect impulses from the senses; control center
Break down food for energy
Protect internal organs
Which of the following is a major organ of the nervous system?
Heart
Liver
Brain
Stomach
Which organ is NOT part of the nervous system?
Spinal cord
Nerves
Senses
Kidneys
What are the two main divisions of the nervous system?
Central nervous system and Peripheral nervous system
Autonomic nervous system and Somatic nervous system
Sympathetic nervous system and Parasympathetic nervous system
Sensory nervous system and Motor nervous system
Which part of the nervous system consists of the brain and spinal cord?
Peripheral nervous system
Central nervous system
Autonomic nervous system
Somatic nervous system
Where do cranial nerves originate?
Spinal cord
Brain
Peripheral nerves
Cerebellum
Where do spinal nerves originate?
Brain
Cerebellum
Spinal cord
Peripheral nerves
What is the role of the Sensory (Afferent) Division in the Peripheral Nervous System?
Sends impulses from the CNS to the muscles and glands
Sends impulses from the senses to the CNS
Controls voluntary muscle movements
Used in emergency situations
Which division of the Peripheral Nervous System is responsible for involuntary muscle control?
Somatic Nervous System
Sensory (Afferent) Division
Autonomic Nervous System
Motor (Efferent) Division
What is the function of the Sympathetic Division?
Provides resting functions such as digestion and urination
Sends impulses from the senses to the CNS
Used in emergency situations ("fight or flight")
Controls voluntary muscle movements
Which division of the Peripheral Nervous System is involved in voluntary muscle control?
Autonomic Nervous System
Somatic Nervous System
Parasympathetic Division
Sensory (Afferent) Division
What is the primary role of the nervous system in the body?
It acts as the master control center.
It produces hormones.
It digests food.
It circulates blood.
Which system does the nervous system work with to perform its functions?
Digestive system
Endocrine system
Respiratory system
Circulatory system
What is the function of sensory input in the nervous system?
It processes and interprets information.
It activates muscles or glands.
It detects changes inside and outside the body.
It produces energy.
What does the integration function of the nervous system involve?
Detecting changes in the environment
Processing and interpreting information
Activating muscles
Producing hormones
What is the response function of the nervous system responsible for?
Detecting stimuli
Processing information
Activation of muscles or glands
Producing enzymes
What is the role of the peripheral nervous system in the body?
It integrates messages in the central nervous system.
It receives sensory input and responds to it.
It controls voluntary movements only.
It is responsible for involuntary actions only.
Into which two sections is the peripheral nervous system divided?
Central and peripheral
Somatic and autonomic
Voluntary and involuntary
Sensory and motor
What type of actions does the autonomic section of the peripheral nervous system control?
Voluntary actions
Involuntary actions
Sensory actions
Motor actions
What are the two major types of nerve cells?
Neurons and Neuroglia
Axons and Dendrites
Synapses and Axons
Myelin and Synapses
What percentage of nerve cells do neurons make up?
10%
50%
90%
75%
What is the primary function of neuroglia?
Conduct impulses
Support, insulate, and protect neurons
Transmit signals
Store information
What is the main structure of a neuron?
A cell body with processes extending outward
A single axon with no extensions
A nucleus without a cell body
Only organelles without a cell body
What does the cell body of a neuron contain?
Only the nucleus
Nucleus, cytoplasm, and organelles
Only cytoplasm
Only organelles
What is the function of dendrites in a neuron?
Send impulses away from the cell body
Bring impulses towards the cell body
Release neurotransmitters
Connect neurons to muscles
What do axon terminals release to pass impulses to the next neuron?
Hormones
Enzymes
Neurotransmitters
Proteins
Which part of the neuron sends impulses away from the cell body?
Dendrites
Axons
Synapse
Nucleus
How are neurons classified based on the number of processes extending from the cell body?
By their size
By their color
By the number of processes
By their location
Which type of neuron has only one process?
Bipolar neuron
Multipolar neuron
Unipolar neuron
Interneuron
What is the function of afferent neurons?
Carry impulses away from the CNS
Connect afferent and efferent neurons
Carry impulses toward the CNS
Transmit signals to muscles
Which type of neuron connects afferent and efferent neurons?
Unipolar neuron
Bipolar neuron
Interneuron
Multipolar neuron
What percentage of the nervous system tissue do neurons make up?
10%
20%
50%
90%
What is the primary function of neurons?
To store energy
To carry impulses around the body
To produce hormones
To support blood circulation
Through what do impulses pass to reach the cell body?
Membranes
Processes
Nuclei
Axons
How can neurons be classified?
By their size and shape
By their color and texture
By the number of processes they have or by their function
By their location in the body
What is the function of myelin in the nervous system?
It acts as a waxy insulation for axons.
It transmits electrical signals.
It produces neurotransmitters.
It forms synapses between neurons.
Which type of cell wraps around the axon to form myelin?
Schwann cell
Neuron
Astrocyte
Oligodendrocyte
What is the outer layer of the Schwann cell called?
Neurilemma
Axolemma
Endoneurium
Perineurium
What is the function of myelin in nerve cells?
To slow down nerve impulses
To help nerve impulses travel more quickly
To store energy
To produce neurotransmitters
What are the myelin wrappings collectively called?
Axon terminals
Synapse
Myelin sheath
Dendrites
What type of cells form the myelin sheath?
Neurons
Schwann cells
Red blood cells
Muscle cells
What are the gaps in the myelin sheath called?
Synapses
Axon terminals
Nodes of Ranvier
Dendrites
Which type of neuroglial cell supports and anchors neurons to surrounding capillaries?
Microglia
Astrocytes
Ependymal cells
Oligodendrocytes
What is the primary function of microglia in the central nervous system?
Support and anchor neurons
Provide immune response
Secrete cerebrospinal fluid
Provide myelin insulation
Which neuroglial cell type is responsible for secreting and circulating cerebrospinal fluid?
Astrocytes
Microglia
Ependymal cells
Oligodendrocytes
What is the function of oligodendrocytes in the central nervous system?
Support neurons
Provide immune response
Secrete cerebrospinal fluid
Provide myelin insulation
What is the primary function of satellite cells in the peripheral nervous system?
Provide myelin insulation to neurons
Support and anchor neurons
Transmit nerve impulses
Produce neurotransmitters
What role do Schwann cells play in the peripheral nervous system?
Transmit nerve impulses
Produce neurotransmitters
Provide myelin insulation to neurons
Support and anchor neurons
What do neurons pass to or from the CNS?
Hormones
Impulses
Enzymes
Proteins
What is the axon covered by?
Myelin sheath
Plasma membrane
Cell wall
Cytoplasm
Which cells form the myelin sheath?
Schwann cells
Red blood cells
White blood cells
Muscle cells
What is one of the functions of neuroglia?
Produce hormones
Anchor neurons
Transport oxygen
Digest food
What is a nerve impulse?
A chemical signal that travels along the neuron
An electrical signal that travels along the neuron
A magnetic signal that travels along the neuron
A thermal signal that travels along the neuron
What causes a nerve impulse to arise?
Movement of proteins
Movement of ions
Movement of water
Movement of gases
What is the charge of a neuron's intracellular space at rest?
Positively charged
Neutrally charged
Negatively charged
Alternating charge
What is the term for the state when a neuron's intracellular space is negatively charged and the extracellular space is positively charged?
Action potential
Resting potential
Threshold potential
Synaptic potential
What happens when a neuron is stimulated?
Potassium rushes into the neuron
Sodium rushes into the neuron
Calcium rushes into the neuron
Chloride rushes into the neuron
What is the process called when the charges in a neuron are reversed?
Polarization
Repolarization
Depolarization
Hyperpolarization
What is the term for the depolarization of a neuron?
Resting potential
Action potential
Threshold potential
Graded potential
What does the action potential do in a neuron?
It stays in one place
It moves down the length of the neuron
It moves up the length of the neuron
It dissipates immediately
What happens to potassium ions during repolarization in a neuron?
They diffuse into the neuron.
They diffuse out of the neuron.
They remain stationary.
They are actively transported into the neuron.
What is the role of the sodium-potassium pump in neurons?
It diffuses sodium ions into the neuron.
It restores ion concentrations to normal.
It increases the resting potential.
It prevents potassium ions from leaving the neuron.
