Nervous System Quiz

What is the primary function of the nervous system?

• Release hormones

• Monitor changes

• Control digestion

• Produce blood cells

What is the role of sensory receptors in the nervous system?

• Store energy

• Gather sensory input

• Produce hormones

• Protect neurons

Which division carries impulses from the central nervous system to muscles or glands?

• Sensory (Afferent) Division

• Motor (Efferent) Division

• Endocrine Division

• Reflex Division

The Autonomic Nervous System controls:

• Voluntary muscles

• Involuntary functions

• Conscious movements

• Skeletal muscle movements

Which of the following is NOT part of the Central Nervous System (CNS)?

• Brain

• Spinal cord

• Cranial nerves

• Neurons

What cells support, insulate, and protect neurons?

• Ependymal cells

• Astrocytes

• Neuroglia

• Microglia

Which structure forms the protective cushion around the CNS?

• Astrocytes

• Microglia

• Ependymal cells

• Schwann cells

What is the function of the myelin sheath?

• Transmit impulses

• Protect and insulate nerve fibers

• Store nutrients

• Control blood flow to neurons

The “All or None Law” refers to:

• Neurons generating partial action potentials

• Neurons transmitting impulses at variable speeds

• Neurons generating an action potential once threshold is reached

• Muscles contracting only partially when stimulated

Reflex arcs involve which of the following?

• Only sensory neurons

• Only motor neurons

• Both sensory and motor neurons

• Neither sensory nor motor neurons