Question 1

What is the primary functional unit of the nervous system?

Accepted Answer

Neurons

Answer

Dendrites

Answer

Axons

Answer

Glial cells

Question 2

Which division of the nervous system connects the CNS to muscles and glands?

Accepted Answer

Peripheral Nervous System (PNS)

Answer

Autonomic Nervous System (ANS)

Answer

Somatic Nervous System (SNS)

Answer

Central Nervous System (CNS)

Question 3

Which type of neuron sends sensory information to the central nervous system?

Accepted Answer

Afferent Neurons

Answer

Interneurons

Answer

Efferent Neurons

Answer

Multipolar Neurons

Question 4

What type of neuroglial cell forms myelin sheaths around axons in the CNS?

Accepted Answer

Oligodendrocytes

Answer

Ependymal cells

Answer

Astrocytes

Answer

Microglia

Question 5

Which part of the nervous system controls involuntary functions such as heart rate?

Accepted Answer

Autonomic Nervous System (ANS)

Answer

Somatic Nervous System (SNS)

Answer

Central Nervous System (CNS)

Answer

Peripheral Nervous System (PNS)

Question 6

What is the role of the action potential in neurons?

Accepted Answer

To transmit electrical signals

Answer

To synthesize neurotransmitters

Answer

To maintain resting membrane potential

Answer

To form myelin sheaths

Question 7

What is the primary function of astrocytes in the CNS?

Accepted Answer

To support neurons and form the blood-brain barrier

Answer

To myelinate axons

Answer

To clear dead cells

Answer

To produce cerebrospinal fluid

Question 8

What is the main function of cerebrospinal fluid (CSF)?

Accepted Answer

To provide cushioning and maintain ionic balance

Answer

To form the blood-brain barrier

Answer

To stimulate neurons

Answer

To transport nutrients

Question 9

What is a common trigger for migraine attacks?

Accepted Answer

Vasodilation of blood vessels

Answer

Decrease in blood pressure

Answer

Excess neurotransmitter release

Answer

Nerve degeneration

Question 10

Which cranial nerve is responsible for the sense of smell?

Accepted Answer

Olfactory Nerve (I)

Answer

Facial Nerve (VII)

Answer

Optic Nerve (II)

Answer

Trigeminal Nerve (V)

Question 11

What is the primary function of the Central Nervous System (CNS)?

Accepted Answer

To process and integrate sensory information and coordinate responses.

Answer

To transmit signals to muscles only

Answer

To manage digestive processes

Answer

To control heart rate

Question 12

What is the myelin sheath made of?

Accepted Answer

Lipids and proteins

Answer

Carbohydrates and vitamins

Answer

Nucleic acids

Answer

Water and minerals

Question 13

What is the main difference between the sympathetic and parasympathetic divisions of the autonomic nervous system?

Accepted Answer

The sympathetic division speeds up bodily functions, while the parasympathetic division slows them down.

Answer

The parasympathetic division speeds up digestion

Answer

Both divisions speed up functions

Answer

The sympathetic division only affects skeletal muscles

Question 14

What process is described as the opening of ion channels that leads to an action potential?

Accepted Answer

Depolarization

Answer

Resting potential

Answer

Hyperpolarization

Answer

Repolarization

Question 15

Which glial cell type is responsible for myelinating axons in the Peripheral Nervous System (PNS)?

Accepted Answer

Schwann Cells

Answer

Astrocytes

Answer

Oligodendrocytes

Answer

Ependymal Cells

Question 16

What type of pain is characterized by being sharp and occurs rapidly after a stimulus?

Accepted Answer

Fast pain (acute pain)

Answer

Visceral pain

Answer

Slow pain (chronic pain)

Answer

Phantom pain

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