Nervous System Quiz

What are the three main parts of a neuron?

• Cell body, dendrites, axon

• Synapse, presynaptic neuron, postsynaptic neuron

• Schwann cells, nodes of Ranvier, myelin

• Astrocytes, oligodendrocytes, ependymal cells

Which type of neurons send impulses to the central nervous system?

• Motor (efferent) neurons

• Sensory (afferent) neurons

• Somatic neurons

• Autonomic neurons

Which type of neuroglia add myelin to CNS axons?

• Ependymal cells

• Oligodendrocytes

• Microglia

• Astrocytes

Which part of the brain coordinates skeletal muscle activity, balance, and posture?

• Diencephalon

• Cerebrum

• Brainstem

• Cerebellum

Which cranial nerve is responsible for the sense of smell?

• Olfactory nerve (I)

• Facial nerve (VII)

• Optic nerve (II)

• Vestibulocochlear nerve (VIII)

Which type of receptors are associated with body surface senses such as touch, pressure, temperature, and pain?

• Exteroceptive receptors

• Chemoreceptors

• Interoceptive receptors

• Proprioceptive receptors

What is the function of muscle spindles?

• Stretch receptors in skeletal muscles

• Stretch receptors in tendons

• Process sound waves for hearing

• Sense position of head when body is not moving

Which structure in the inner ear is responsible for static equilibrium?

• Macula lutea

• Cochlea

• Semicircular canals

• Vestibule

Which tunic of the eye contains the cornea and sclera?

• Outer (fibrous) tunic

• Middle (vascular) tunic

• Inner (nervous) tunic

• Retina

What is the term for nearsightedness?

• Hyperopia

• Myopia

• Presbyopia

• Astigmatism