Question 1

Which part of the nervous system contains the brain and spinal cord?&#10;A) sensory nerves&#10;B) motor nerves&#10;C) central nervous system&#10;D) peripheral nervous system

Accepted Answer

The central nervous system (CNS) includes the brain and the spinal cord.

Question 2

Which of the following gather information from the environment and carry it to the central nervous system (CNS)?&#10;A) motor nerves&#10;B) sensory nerves&#10;C) integrative function&#10;D) central nervous system

Accepted Answer

Sensory nerves gather information from inside the body and from the outside environment.

Question 3

Which of the following is called nerve glue and is composed of astrocytes, microglia, oligodendrocytes, and ependymal cells?&#10;A) Schwann cells&#10;B) nuclei&#10;C) neuroglia&#10;D) neurons

Accepted Answer

Neuroglia, or glial cells, are the nerve glue.

Question 4

Which of the following nerve cells transmit information as electrical signals?&#10;A) neurons&#10;B) ependymal cells&#10;C) microglia&#10;D) astrocyte

Accepted Answer

The second type of cell within the nervous system is the neuron. Of the two types of nerve cells, the neuron is the most important in the transmission of electrical signals.

Question 5

Which part of the neuron contains the nucleus; dendrites bring information to this structure, the axon carries information away from this structure?&#10;A) axon terminal&#10;B) myelin sheath&#10;C) neurilemma&#10;D) cell body

Accepted Answer

The cell body contains the nucleus and is essential for the life of the cell. The axon transmits signals away from the cell body. Dendrites receive signals from other neurons and then transmit the signals toward the cell body.

Question 6

Which of the following is the name for the white, fatty material that surrounds the axon; it increases the rate at which the electrical signal travels along the axon?&#10;A) nodes of Ranvier&#10;B) acetylcholine (ACh)&#10;C) myelin sheath&#10;D) dendrites

Accepted Answer

Most long nerve fibers of both the peripheral and central nervous systems are encased by a layer of white fatty material called the myelin sheath.

Question 7

When this occurs, the inside of the neuron becomes positively charged.&#10;A) repolarization&#10;B) resting membrane potential (RMP)&#10;C) depolarization&#10;D) action potential

Accepted Answer

When the neuronal membrane is stimulated, a change occurs in the cell's electrical state. In the resting (polarized) state, the inside of the cell is negative. When the cell membrane is stimulated, the inside becomes positive. As the inside of the cell changes from negative to positive, it is said to depolarize.

Question 8

Which is the largest part of the brain?&#10;A) diencephalon&#10;B) cerebrum&#10;C) brain stem&#10;D) cerebellum

Accepted Answer

The cerebrum is the largest part of the brain.

Question 9

A bump or elevation on the surface of the cerebrum is called:&#10;A) fissure.&#10;B) sulcus.&#10;C) protrusion.&#10;D) gyrus.

Accepted Answer

The bumpy surface of the cerebrum has numerous markings with special names. The surface of the cerebrum is folded into elevations that resemble speed bumps on a road. The elevations are called convolutions, or gyri (sing., gyrus).

Question 10

Which of the four brain lobes is the motor function area; personality and behavior, emotional expression, and intellectual function are all contained in this area?&#10;A) temporal lobe&#10;B) frontal lobe&#10;C) occipital lobe&#10;D) parietal lobe

Accepted Answer

The frontal lobe is located in the front of the cranium under the frontal bone. The frontal lobe plays a key role in voluntary motor activity, personality development, emotional and behavioral expression, and performance of high-level tasks such as learning, thinking, and making plans; these are sometimes called executive functions. The frontal lobe also contains the primary motor area (cortex) .

Deck 10: Nervous System: Nervous Tissue and Brain