01
Choose one
1 point
A receptor detects a change in the environment, and the signal travels toward the spinal cord. Which type of pathway carries this information?
Free Practice Quiz Question List
5 The Nervous System Online Quiz Questions
Use this free practice quiz with 20 questions to review 5 The Nervous System, test your knowledge, and prepare for your next test or exam.
20 questions
02
Fill in the blank
1 point
In a typical neuron, receive many incoming signals, while the carries signals toward other cells.
03
Choose one
1 point
A peripheral axon needs a myelin sheath. Which glial cell forms that sheath?
- A
Schwann cells
- B
Oligodendrocytes
- C
Astrocytes
- D
Microglia
04
Fill in the blank
1 point
The helps regulate digestive activity and communicates with the autonomic nervous system.
05
Choose all
1 point
Select all the types of effectors whose involuntary activity is regulated by the autonomic nervous system.
- A
Smooth muscle
- B
Cardiac muscle
- C
Glands
- D
Skeletal muscle
- E
Sensory receptors
06
Written response
1 point
Through which root do sensory fibers enter the spinal cord in a typical spinal nerve?
07
True or false
1 point
In a spinal-cord cross-section, gray matter is central and is surrounded by white matter.
- A
True
- B
False
08
Choose one
1 point
Damage to which brain region would most directly threaten the regulation of breathing and heart activity?
- A
Cerebellum
- B
Cerebrum
- C
Brainstem
- D
Diencephalon
09
Choose all
1 point
Select all the statements that correctly describe ion movements during an action potential, according to the material.
- A
Sodium ions move into the cell and depolarize the membrane.
- B
Potassium ions move out of the cell and help restore its resting state.
- C
Sodium ions move out of the cell to depolarize the membrane.
- D
Potassium ions move into the cell to restore its resting state.
10
Choose one
1 point
A region relays much of the sensory information passing through the brain. Which structure best fits this role?
- A
Hypothalamus
- B
Thalamus
- C
Cerebellum
- D
Medulla
11
Choose one
1 point
A nerve connects the brain with a structure in the neck. Which category does it belong to?
- A
Cranial nerves
- B
Spinal nerves
- C
Dorsal roots
- D
Ventral roots
12
Open ended
1 point
Explain how a spinal reflex can produce a rapid muscle response before a person becomes consciously aware of the stimulus. Include the route of sensory input and motor output, and explain how the brain may still receive information.
13
Choose one
1 point
In a typical spinal nerve, through which root do sensory fibers enter the spinal cord?
- A
Ventral root
- B
Dorsal root
- C
Cranial nerve
- D
Ganglion
14
True or false
1 point
In a myelinated axon, an action potential is renewed at gaps in the myelin, helping the signal travel rapidly from node to node.
- A
True
- B
False
15
Choose one
1 point
Which glial cell type forms myelin around axons in the central nervous system?
- A
Astrocytes
- B
Oligodendrocytes
- C
Microglia
- D
Ependymal cells
16
Written response
1 point
Which CNS glial cell helps regulate the chemical environment around neurons?
17
Choose one
1 point
During an action potential, which ion movements produce depolarization and then help restore the neuron’s resting state?
- A
Sodium ions move out to depolarize; potassium ions move in to restore the resting state.
- B
Both sodium and potassium ions move into the cell to depolarize it.
- C
Sodium ions move in to depolarize; potassium ions move out to help restore the resting state.
- D
Potassium ions move in to depolarize; sodium ions move out to restore the resting state.
18
Written response
1 point
At most synapses, what chemical messenger is released by a neuron, crosses the synaptic gap, and binds to receptors on a target cell?
19
Written response
1 point
In a spinal-cord cross-section, what is the name of the region surrounding gray matter that contains many axons traveling in tracts?
20
True or false
1 point
A neuron reaches threshold and generates an action potential. As the signal travels along the axon, does it gradually become weaker?
- A
True
- B
False