Exam 4 Practice MCQs

Which of the following sensory functions involves neurons in the posterior root ganglion?

• Smell
• Hearing
• Touch
• Taste
• Vision

Voluntary motor impulses leave the spinal cord via the _________ of gray matter.

• anterior horn
• posterior horn
• anterior funiculus
• posterior funiculus
• lateral horn

Cerebrospinal fluid fills the space between the __________.

• dural sheath and dura mater
• dural sheath and vertebral bones
• dura mater and arachnoid mater
• arachnoid mater and pia mater
• dura mater and pia mater

The bundle of nerve roots that occupy the vertebral canal from L2 to S5 is called the __________.

• medullary cone
• cauda equina
• lumbosacral enlargement
• cervical enlargement
• spinal cord

Which of the following fractures would be the least likely to cause a spinal cord injury?

• A fracture of vertebra C2
• A fracture of vertebra C6
• A fracture of vertebra T5
• A fracture of vertebra T12
• A fracture of vertebra L4

Which of the following is contained within gray matter?

• Glial cells, axons of motor neurons, and Schwann cells
• Glial cells and myelinated fibers
• Neurosomas, dendrites, and proximal parts of axons of neurons
• The distal part of axons of lower order motor neurons
• Glial cells only

The upper motor neurons that control skeletal muscles begin with a neurosoma in the __________.

• posterior horn of the spinal cord
• anterior horn of the spinal cord
• motor association cortex of the cerebrum
• postcentral gyrus of the cerebrum
• precentral gyrus of the cerebrum

Many upper motor neurons synapse with lower motor neurons in the ___________.

• posterior horn
• anterior horn
• posterior funiculus
• anterior funiculus
• posterior root ganglion

Second-order neurons synapse with third-order neurons in the __________.

• thalamus
• dorsal root ganglion
• spinal cord
• cerebral cortex
• medulla oblongata

The signals that control your handwriting travel down the spinal cord in the _________ tracts.

• tectospinal
• corticospinal
• lateral vestibulospinal
• medial vestibulospinal
• spinocerebellar