Question 1

____________________ are tumors of the meninges.

Accepted Answer

The answer of ____________________ are tumors of the meninges....

Question 2

The CNS is comprised of the brain and ____________________.

Accepted Answer

The answer of The CNS is comprised of the brain...

Question 3

The ventral spinocerebellar pathway in the spinal cord involves ascending tracts, while the ventral corticospinal pathway involves descending tracts.

Accepted Answer

The ventral spinocerebellar pathway transmits sensory information from the spinal cord to the cerebellum via ascending tracts, while the ventral corticospinal pathway carries motor commands from the brain to the spinal cord via descending tracts.

Question 4

The ____________________ nervous system stimulates only digestive organs, and this system is a subdivision of the ____________________ division of the PNS.

Accepted Answer

The answer of The ____________________ nervous system stimulates only digestive...

Question 5

The efferent division of the PNS is divided into the ____________________ nervous system, which innervates skeletal muscles, and the ____________________ nervous system, which innervates smooth muscle, cardiac muscle, and glands.

Accepted Answer

The answer of The efferent division of the PNS is...

Question 6

The ____________________ nervous system conducts impulses to the CNS.

Accepted Answer

The answer of The ____________________ nervous system conducts impulses to...

Question 7

Stellate neurons process sensory input into the cerebral cortex, while pyramidal neurons in the cortex have long axons that extend to motor neurons in spinal cord.

Accepted Answer

Stellate neurons are typically found in the thalamus and process incoming sensory information, whereas pyramidal neurons in the cortex do have long axons but they mostly connect with other neurons within the cortex, and some extend out of the cortex to other brain regions, not directly to motor neurons in the spinal cord.

Question 8

The four major types of glial cells in the CNS are ____________________, ____________________, ____________________, and ____________________.

Accepted Answer

The answer of The four major types of glial cells...

Question 9

The ____________________ are protective and nourishing membranes that lie between the central nervous system and its bony covering.

Accepted Answer

The answer of The ____________________ are protective and nourishing membranes...

Question 10

Skeletal muscles are stimulated by the ____________________ nervous system, which is within the ____________________ division of the peripheral nervous system.

Accepted Answer

The answer of Skeletal muscles are stimulated by the ____________________...

Question 11

A(n) ____________________ is an environmental change that causes a sensory receptor to initiate an action potential.

Accepted Answer

The answer of A(n) ____________________ is an environmental change that...

Question 12

Glutamate and nitric oxide are involved in the interaction between presynaptic and postsynaptic neurons during long-term potentiation.

Accepted Answer

Glutamate is a neurotransmitter that is heavily involved in long-term potentiation (LTP), a process that strengthens the communication between neurons. Nitric oxide is also involved in LTP, as it acts as a retrograde messenger that signals to the presynaptic neuron to increase the release of glutamate. Therefore, both glutamate and nitric oxide play important roles in the interaction between presynaptic and postsynaptic neurons during LTP.

Question 13

The hippocampus is a critical site for converting short-term memories into long-term memories.

Accepted Answer

The hippocampus plays a crucial role in memory consolidation, which is the process of transforming new, short-term memories into long-term memories that can be stored and retrieved later. Research has shown that damage to the hippocampus can impair the ability to form and recall new memories.

Question 14

The ____________________ is a special cushioning fluid that surrounds the brain and spinal cord.

Accepted Answer

The answer of The ____________________ is a special cushioning fluid...

Question 15

Any organ in the PNS that is innervated by a motor neuron is generally called a(n) ________.

Accepted Answer

The answer of Any organ in the PNS that is...

Question 16

During REM sleep, the limbic system becomes more active while the prefrontal cortex becomes less active; as a result, emotions outweigh reasoning during sleep.

Accepted Answer

During REM sleep, the limbic system, which is responsible for regulating emotions, becomes more active, while the prefrontal cortex, which is responsible for rational thought, becomes less active. This can lead to emotions having a stronger influence than reasoning during sleep.

Question 17

About 90 percent of the cells in the CNS are ____________________ cells.

Accepted Answer

The answer of About 90 percent of the cells in...

Question 18

____________________ are the glial cells that induce anatomical changes in blood vessels.

Accepted Answer

The answer of ____________________ are the glial cells that induce...

Question 19

The meninges from the outermost to the innermost layer are the ____________________, the ____________________, and the ____________________.

Accepted Answer

The answer of The meninges from the outermost to the...

Question 20

The ____________________ system coordinates rapid responses of the body, whereas the ____________________ system is responsible for regulating metabolic functions and activities that require duration rather than speed.

Accepted Answer

The answer of The ____________________ system coordinates rapid responses of...

Quiz 5: The Central Nervous System