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Comprehensive Nervous System Quiz

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

What is the primary role of the nervous system?

a)

Produce hormones

b)

Control all physiological functions

c)

Filter blood

d)

Digest nutrients

2.

Which nervous system function involves interpreting sensory data and initiating responses?

a)

Homeostasis

b)

Integration

c)

Motor output

d)

Sensory reception

3.

Neurons primarily function to:

a)

Phagocytize pathogens

b)

Transmit electrical/chemical signals

c)

Produce cerebrospinal fluid

d)

Form the blood-brain barrier

4.

Which glial cell is responsible for myelination in the CNS?

a)

Astrocytes

b)

Schwann cells

c)

Oligodendrocytes

d)

Microglia

5.

What is the function of ependymal cells?

a)

Immune defense

b)

Myelin production

c)

CSF production

d)

Blood-brain barrier maintenance

6.

Schwann cells differ from oligodendrocytes because they:

a)

Are found only in the CNS

b)

Myelinate multiple axons

c)

Enable nerve regeneration in the PNS

d)

Form tight junctions for the blood-brain barrier

7.

Saltatory conduction occurs due to:

a)

Dendrites receiving signals

b)

Nodes of Ranvier

c)

The neurilemma

d)

The cell body

8.

The neurilemma is part of which structure?

a)

Axon

b)

Schwann cell

c)

Dendrite

d)

Node of Ranvier

9.

A bundle of axons in the PNS is called a:

a)

Tract

b)

Nucleus

c)

Ganglion

d)

Nerve

10.

The perineurium surrounds:

a)

Individual axons

b)

Fascicles

c)

Entire nerves

d)

Gray matter

11.

Gray matter in the CNS consists mainly of:

a)

Myelinated axons

b)

Cell bodies

c)

Schwann cells

d)

Ependymal cells

12.

The somatic nervous system controls:

a)

Involuntary gland secretion

b)

Voluntary skeletal muscles

c)

Heart rate

d)

Digestion

13.

Which neurotransmitter is released by the parasympathetic nervous system?

a)

Adrenaline

b)

Dopamine

c)

Acetylcholine

d)

Serotonin

14.

Autonomic nervous system functions are:

a)

Voluntary

b)

Involuntary

c)

Sensory only

d)

Related to cognition

15.

In a monosynaptic reflex arc, signals pass directly:

a)

Sensory neuron → interneuron

b)

Sensory neuron → motor neuron

c)

Motor neuron → interneuron

d)

Interneuron → effector

16.

Dorsal root ganglia contain:

a)

Motor neuron cell bodies

b)

Sensory neuron cell bodies

c)

Astrocytes

d)

Oligodendrocytes

17.

The precentral gyrus is the location of the:

a)

Somatosensory cortex

b)

Visual cortex

c)

Motor cortex

d)

Auditory cortex

18.

Balance and coordination are primarily controlled by the:

a)

Cerebrum

b)

Diencephalon

c)

Brainstem

d)

Cerebellum

19.

Which brain region regulates body temperature and hunger?

a)

Thalamus

b)

Hypothalamus

c)

Epithalamus

d)

Basal nuclei

20.

The pineal gland (melatonin production) is part of the:

a)

Thalamus

b)

Hypothalamus

c)

Epithalamus

d)

Pons

21.

Damage to the cerebellum would likely cause:

a)

Memory loss

b)

Ataxia (loss of coordination)

c)

Blindness

d)

Paralysis

22.

Which brainstem part regulates breathing and connects to the cerebellum?

a)

Midbrain

b)

Medulla oblongata

c)

Pons

d)

Thalamus

23.

Visual/auditory reflexes are controlled by the:

a)

Pons

b)

Medulla

c)

Midbrain (colliculi)

d)

Hypothalamus

24.

Parkinson’s disease results from dopamine loss in the:

a)

Cerebellum

b)

Hippocampus

c)

Basal nuclei

d)

Thalamus

25.

The spinal cord terminates at:

a)

C1

b)

T1

c)

T12–L1 (conus medullaris)

d)

S5

26.

The cauda equina refers to:

a)

The end of the spinal cord

b)

A bundle of nerve roots resembling a horse’s tail

c)

Gray matter in the spinal cord

d)

The dura mater

27.

Sensory neurons enter the spinal cord via:

a)

Ventral horns

b)

Dorsal horns

c)

Lateral horns

d)

Central canal

28.

Motor neurons exit the spinal cord via:

a)

Ventral roots

b)

Dorsal roots

c)

Dorsal root ganglia

d)

Central canal

29.

How many pairs of cranial nerves are there?

a)

12

b)

31

c)

24

d)

8

30.

All spinal nerves are:

a)

Sensory

b)

Motor

c)

Mixed

d)

Autonomic

31.

The subarachnoid space contains:

a)

Blood

b)

CSF

c)

Dura mater

d)

Gray matter

32.

Which meningeal layer is closest to the brain?

a)

Dura mater

b)

Arachnoid mater

c)

Pia mater

d)

Epineurium

33.

CSF is reabsorbed into dural sinuses via:

a)

Choroid plexus

b)

Arachnoid granulations

c)

Interventricular foramina

d)

Central canal

34.

CSF is produced by the:

a)

Arachnoid granulations

b)

Dural sinuses

c)

Choroid plexus

d)

Basal nuclei

35.

Which structure connects the third and fourth ventricles?

a)

Interventricular foramen

b)

Cerebral aqueduct

c)

Central canal

d)

Lateral aperture

36.

Correct CSF flow pathway:

a)

Lateral ventricles → third ventricle → fourth ventricle → subarachnoid space

b)

Fourth ventricle → third ventricle → lateral ventricles → subarachnoid space

c)

Subarachnoid space → lateral ventricles → third ventricle

d)

Third ventricle → lateral ventricles → cerebral aqueduct

37.

The blood-brain barrier is maintained by:

a)

Oligodendrocytes

b)

Astrocytes

c)

Schwann cells

d)

Microglia

38.

Which substance easily crosses the blood-brain barrier?

a)

Bacteria

b)

Proteins

c)

Glucose

d)

Antibodies

39.

Multiple sclerosis involves destruction of:

a)

Dopamine neurons

b)

Myelin sheaths

c)

CSF

d)

Astrocytes

40.

Meningitis affects the:

a)

Brain parenchyma

b)

Meninges

c)

Ventricles

d)

Spinal cord gray matter

41.

In a reflex arc, the effector is always a:

a)

Sensory receptor

b)

Neuron

c)

Muscle or gland

d)

Interneuron

42.

Which reflex type has the simplest pathway?

a)

Polysynaptic

b)

Monosynaptic

c)

Autonomic

d)

Somatic

43.

Sensory receptors for touch are part of the:

a)

Efferent division

b)

Afferent division

c)

Interneurons

d)

Motor neurons

44.

Autonomic motor neurons innervate:

a)

Skeletal muscle

b)

Smooth muscle/cardiac muscle/glands

c)

Sensory receptors

d)

Interneurons

45.

The insula is involved in:

a)

Vision

b)

Hearing

c)

Pain and visceral sensations

d)

Motor control

46.

Decision-making and inhibition are functions of the:

a)

Frontal lobe

b)

Temporal lobe

c)

Occipital lobe

d)

Parietal lobe

47.

Spatial awareness is processed in the:

a)

Frontal lobe

b)

Parietal lobe

c)

Occipital lobe

d)

Temporal lobe

48.

Lateral horns (not covered in lectures) contain:

a)

Sensory neurons

b)

Somatic motor neurons

c)

Autonomic motor neurons

d)

Interneurons

49.

The anterior median fissure is a:

a)

Shallow dorsal groove

b)

Deep ventral groove

c)

Site of CSF circulation

d)

Sensory nerve entry point

50.

Dopamine loss in basal nuclei causes:

a)

Alzheimer’s

b)

Multiple sclerosis

c)

Parkinson’s

d)

Meningitis

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