Font size
WorksheetsNervous System
Total questions: 15
Worksheet time: 8mins
What two components make up the central nervous system (CNS)?
spinal cord and facial nerves
nerves in the limbs and the brain
brain and spinal cord
nerves in the limbs and those around the organs
These neurons transmit information from the sensory receptors to the CNS.
sensory neurons (afferent)
interneurons (association)
motor neurons (efferent)
These neurons transmit information from the CNS to the effector muscle or gland.
sensory neurons (afferent)
interneurons (association)
motor neurons (efferent)
Put the following parts of the reflex arc in the correct order:
1. motor neuron (efferent)
2. receptor
3. effector
4. sensory neuron (afferent)
5. interneuron
(a)
The part of the neuron that contains the nucleus of the cell is the
dendrite
cell body
axon
myelin sheath
The part of the neuron that conducts the action potential away from the cell body is the
neurilemma
dendrite
axon terminal
axon
The part of the neuron that receives information from other neurons or from the sensory receptors.
synapse
axon terminal
dendrite
Schwann cell
The part of the neuron that insulates the axon in order to ensure a "faster" action potential.
myelin sheath
Schwann cell
Node of Ranvier
axon
What does the letter F represent?
axon
Schwann cell
Node of Ranvier
myelin sheath
What does the letter A represent?
nucleus
cell body
dendrite
axon terminal
What does the letter G represent?
axon terminal
Schwann cell
myelin sheath
Node of Ranvier
What structure is correctly named AND is the structure that releases an outgoing chemical signal into the synapse?
H, axon terminal
H, dendrite
A, dendrite
A, axon terminal
A resting potential is labeled what number on the graph?
1
2
3
4
An action potential, or the "firing" of the nerve occurs at 1 which is called
polarization
repolarization
depolarization
hyperpolarization
An action potential, or the "firing" of the nerve occurs at 1 which is caused by
Ca2+ ions rushing into the axon
K+ ions rushing out of the axon
Activation of the Na+/K+ pumps
Na+ ions rushing into the axon
