Question 1

CREB is a brain neurotransmitter.

Accepted Answer

CREB (cAMP response element-binding protein) is actually a protein that binds to DNA and regulates gene expression in neurons. It is not a neurotransmitter.

Question 2

The limbic association cortex is involved with motivation and emotion.

Accepted Answer

The limbic association cortex is connected to parts of the brain responsible for motivation and emotion, such as the amygdala and hippocampus, making it involved in these processes.

Question 3

About 90 percent of the cells within the CNS are neurons.

Accepted Answer

The majority of cells in the CNS are glial cells, not neurons. Neurons make up about 10 percent, while glial cells constitute about 90 percent.

Question 4

The two subdivisions of the autonomic nervous system are the ____________________ and the ____________________.

Accepted Answer

The answer of The two subdivisions of the autonomic nervous...

Question 5

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 6

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

Accepted Answer

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

Question 7

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...

Question 8

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

Accepted Answer

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

Question 9

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

Accepted Answer

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

Question 10

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

Accepted Answer

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

Question 11

Microglia are the immune cells of the CNS.

Accepted Answer

Microglia are indeed the immune cells of the central nervous system (CNS) that help protect and regulate the brain and spinal cord by forming the first line of defense against infection, injury, or disease.

Question 12

Dura mater is the innermost meningeal layer.

Accepted Answer

Dura mater is the outermost meningeal layer.

Question 13

The nervous system is organized into the ____________________, consisting of the brain and ____________________; and the ____________________, consisting of nerve fibres that carry information between the CNS and other parts of the body.

Accepted Answer

The answer of The nervous system is organized into the...

Question 14

The stretch reflex is a polysynaptic reflex.

Accepted Answer

The stretch reflex is a monosynaptic reflex, involving only one synapse between the sensory neuron that detects the stretch and the motor neuron that responds.

Question 15

The efferent division of the peripheral nervous system is divided into the ____________________, which consists of ____________________ that supply the skeletal muscles; and the ____________________, which innervates smooth muscle, cardiac muscle, and glands.

Accepted Answer

The answer of The efferent division of the peripheral nervous...

Question 16

The ____________________ division of the peripheral nervous system carries information to the CNS.Instructions from the CNS are transmitted via the ____________________ division of the peripheral nervous system to the ____________________ organs.

Accepted Answer

The answer of The ____________________ division of the peripheral nervous...

Question 17

There are 15 pairs of cranial nerves.

Accepted Answer

There are 12 pairs of cranial nerves in the human body.

Question 18

A(n) ____________________ organ is a muscle or gland carrying out a response.

Accepted Answer

The answer of A(n) ____________________ organ is a muscle or...

Question 19

The CNS comprises the brain and the ____________________.

Accepted Answer

The answer of The CNS comprises the brain and the...

Question 20

A sensory receptor generates action potentials if disturbed by an environmental change or ____________________.

Accepted Answer

The answer of A sensory receptor generates action potentials if...

Quiz 3: The Central Nervous System