Chapter: Nervous System

Question 1

Resting membrane potential:

Answer 1

-70 mv

Question 2

The following features are consistent with myelinated axons, except:

Answer 2

Needs more ATP for propagation

Question 3

The following is a characteristic of leak channels:

Answer 3

Don’t have gates

Question 4

Autonomic division of the nervous system transmits action potentials to the following, except:

Answer 4

Skeletal muscles

Question 5

Integrating information is present in the following

Answer 5

Interneurons inside the CNS

Question 6

In maintaining the resting membrane potential, most potassium ions are concentrated in the:

Answer 6

Intracellular space

Question 7

This glial cell is responsible in forming the blood-brain barrier

Answer 7

Astrocytes

Question 8

In the maintenance of the resting membrane potential, most sodium ions are concentrated in:

Answer 8

Extracellular space

Question 9

This glial cell is responsible in forming the myelin sheaths inside the central nervous system:

Answer 9

Oligodendrocytes

Question 10

The nervous system is composed of the following, except

Answer 10

Spinal column

Question 11

Which of the following statements about nerve conduction is incorrect?

Answer 11

Unmyelinated axons have quicker propagation

Question 12

Which of the following statements about nerve conduction is incorrect?

Answer 12

Unmyelinated axons have quicker propagation

Question 13

The following is involve for active transport and uses ATP to move ions:

Answer 13

Sodium-potassium pump

Question 14

Truth about reflex, except:

Answer 14

Processed in the higher brain centers

Question 15

Gray matter are colored gray because of the following:

Answer 15

It is composed of nerve cell bodies

Question 16

The following terminology is also being used to identify sensory nerves:

Answer 16

Afferent fibers

Question 17

The triggering of action potential that causes the inside of the cell membrane to become positively charged:

Answer 17

Depolarization

Question 18

The following are parts of the CNS, except:

Answer 18

Peripheral nerve

Question 19

Which among the following is not true about neurotransmitters?

Answer 19

It is released from the post-synaptic terminal

Question 20

The following is NOT an example of glial cells in the CNS:

Answer 20

Schwann cells

Question 21

During depolarization, the following change occurs:

Answer 21

Extracellular matrix become negatively charged

Question 22

The reticular formation is scattered along this part of the brain:

Answer 22

Brainstem

Question 23

The following are functions of the cerebellum, except:

Answer 23

Memory

Question 24

Phrenic nerve is included in the following:

Answer 24

Cervical plexus

Question 25

The following is part of the diencephalon that controls homeostasis:

Answer 25

Hypothalamus

Question 26

The following is not a receptor mechanism, except:

Answer 26

Sensory pathways

Question 27

The following are true about the gray matter of the spinal cord, except

Answer 27

Contains myelinated fibers

Question 28

The primary motor cortex is located in the following:

Answer 28

Precentral gyrus

Question 29

The following supply the nerve of the lower extremities, except:

Answer 29

Brachial plexus

Question 30

The spinal cord terminates at the:

Answer 30

L1-L2 area

Question 31

There are 31 pairs of spinal nerves, and each spinal nerve has their own sensory and motor components.

Answer 31

Both statements are correct