© 2018 Pearson Education, Inc.

Which region of the spinal cord has more spinal nerve pairs than the corresponding number of vertebrae? Cranial Cervical Thoracic Lumbar Answer: b © 2018 Pearson Education, Inc.

Which region of the spinal cord has more spinal nerve pairs than the corresponding number of vertebrae? Cranial Cervical Thoracic Lumbar © 2018 Pearson Education, Inc.

To avoid spinal cord damage when a lumbar puncture is performed, what region of the spinal cord is involved? Conus medullaris T11–L1 Cauda equina Lumbar enlargement Answer: c © 2018 Pearson Education, Inc.

To avoid spinal cord damage when a lumbar puncture is performed, what region of the spinal cord is involved? Conus medullaris T11–L1 Cauda equina Lumbar enlargement © 2018 Pearson Education, Inc.

Which of these landmarks is found on the anterior (ventral) surface of the spinal cord? Gray matter Spinal nerve ramus Median fissure Root ganglion Answer: c © 2018 Pearson Education, Inc.

Which of these landmarks is found on the anterior (ventral) surface of the spinal cord? Gray matter Spinal nerve ramus Median fissure Root ganglion © 2018 Pearson Education, Inc.

Posterior root ganglion Posterior white column Spinal nerve Which of the following structures carries both sensory and motor neurons? Posterior root ganglion Posterior white column Spinal nerve Anterior gray horn Answer: c © 2018 Pearson Education, Inc.

Posterior root ganglion Posterior white column Spinal nerve Which of the following structures carries both sensory and motor neurons? Posterior root ganglion Posterior white column Spinal nerve Anterior gray horn © 2018 Pearson Education, Inc.

What is the cauda equina composed of? Spinal nerve rami Vertebral filaments Ventral and dorsal roots Arachnoid trabeculae Answer: c © 2018 Pearson Education, Inc.

What is the cauda equina composed of? Spinal nerve rami Vertebral filaments Ventral and dorsal roots Arachnoid trabeculae © 2018 Pearson Education, Inc.

Anterior median fissure Gray commissure Communicating rami Which structure allows axons to cross over to the contralateral side of the spinal cord? Posterior ramus Anterior median fissure Gray commissure Communicating rami Answer: c © 2018 Pearson Education, Inc.

Anterior median fissure Gray commissure Communicating rami Which structure allows axons to cross over to the contralateral side of the spinal cord? Posterior ramus Anterior median fissure Gray commissure Communicating rami © 2018 Pearson Education, Inc.

Multiple layers of connective tissue What is present within the dorsal root ganglion, giving it a swollen appearance? Cell bodies Cerebrospinal fluid Additional myelin Multiple layers of connective tissue Answer: a © 2018 Pearson Education, Inc.

Multiple layers of connective tissue What is present within the dorsal root ganglion, giving it a swollen appearance? Cell bodies Cerebrospinal fluid Additional myelin Multiple layers of connective tissue © 2018 Pearson Education, Inc.

Which of these connect(s) to the sympathetic ganglia? Posterior ramus Communicating rami Anterior ramus Anterior root Answer: b © 2018 Pearson Education, Inc.

Which of these connect(s) to the sympathetic ganglia? Posterior ramus Communicating rami Anterior ramus Anterior root © 2018 Pearson Education, Inc.

Which of these does NOT carry sensory nerve fibers? Anterior ramus Posterior root ganglion Anterior root Posterior ramus Answer: c © 2018 Pearson Education, Inc.

Which of these does NOT carry sensory nerve fibers? Anterior ramus Posterior root ganglion Anterior root Posterior ramus © 2018 Pearson Education, Inc.

Fascicles are bundles of axons Fascicles are bundles of axons. Which layer of tissue partitions the nerve into fascicles? Epineurium Endoneurium Perineurium Myelin Answer: c © 2018 Pearson Education, Inc.

Fascicles are bundles of axons Fascicles are bundles of axons. Which layer of tissue partitions the nerve into fascicles? Epineurium Endoneurium Perineurium Myelin © 2018 Pearson Education, Inc.

Which region of the spinal cord does NOT contribute in a major way to any of the plexuses? Cervical Brachial Thoracic Sacral Answer: c © 2018 Pearson Education, Inc.

Which region of the spinal cord does NOT contribute in a major way to any of the plexuses? Cervical Brachial Thoracic Sacral © 2018 Pearson Education, Inc.

Which plexus gives rise to the nerves that supply the diaphragm? Intercostal Thoracic Brachial Cervical Answer: d © 2018 Pearson Education, Inc.

Which plexus gives rise to the nerves that supply the diaphragm? Intercostal Thoracic Brachial Cervical © 2018 Pearson Education, Inc.

Numbness or tingling in the pinky and medial half of the ring finger could indicate injury to which nerve? Sciatic Radial Median Ulnar Answer: d © 2018 Pearson Education, Inc.

Numbness or tingling in the pinky and medial half of the ring finger could indicate injury to which nerve? Sciatic Radial Median Ulnar © 2018 Pearson Education, Inc.

Posterior roots of spinal nerves Posterior white columns The virus associated with shingles may lie dormant for many years without causing infection. Where does it attack? Posterior roots of spinal nerves Posterior white columns Anterior gray horns Communicating rami Answer: a © 2018 Pearson Education, Inc.

Posterior roots of spinal nerves Posterior white columns The virus associated with shingles may lie dormant for many years without causing infection. Where does it attack? Posterior roots of spinal nerves Posterior white columns Anterior gray horns Communicating rami © 2018 Pearson Education, Inc.

Musculocutaneous nerve Ulnar nerve Median nerve Which of the following nerves supplies the flexor muscles of the arm, including the biceps brachii? Radial nerve Musculocutaneous nerve Ulnar nerve Median nerve Answer: b © 2018 Pearson Education, Inc.

Musculocutaneous nerve Ulnar nerve Median nerve Which of the following nerves supplies the flexor muscles of the arm, including the biceps brachii? Radial nerve Musculocutaneous nerve Ulnar nerve Median nerve © 2018 Pearson Education, Inc.

What type of neural circuit continues a stimulatory signal until it fatigues or is inhibited? Serial Parallel Reverberating Converging Answer: c © 2018 Pearson Education, Inc.

What type of neural circuit continues a stimulatory signal until it fatigues or is inhibited? Serial Parallel Reverberating Converging © 2018 Pearson Education, Inc.

Posterior white column Anterior white commissure Lateral gray horn Along which spinal tract will sensory information from the limbs travel toward the brain? Posterior white column Anterior white commissure Lateral gray horn Ventral spinal root Answer: a © 2018 Pearson Education, Inc.

Posterior white column Anterior white commissure Lateral gray horn Along which spinal tract will sensory information from the limbs travel toward the brain? Posterior white column Anterior white commissure Lateral gray horn Ventral spinal root © 2018 Pearson Education, Inc.

Which of the following types of neuronal circuit contains many initial neurons and ends with fewer neurons than it started with? Parallel Divergent Convergent Serial Answer: c © 2018 Pearson Education, Inc.

Which of the following types of neuronal circuit contains many initial neurons and ends with fewer neurons than it started with? Parallel Divergent Convergent Serial © 2018 Pearson Education, Inc.

Where are visceral nuclei located within the spinal cord? Lateral white columns Lateral gray horns Ventral gray horns Dorsal root ganglion Answer: b © 2018 Pearson Education, Inc.

Where are visceral nuclei located within the spinal cord? Lateral white columns Lateral gray horns Ventral gray horns Dorsal root ganglion Answer: b © 2018 Pearson Education, Inc.

A simple reflex arc exemplifies which type of neuronal circuit? Convergent Reverberating Parallel Serial Answer: d © 2018 Pearson Education, Inc.

A simple reflex arc exemplifies which type of neuronal circuit? Convergent Reverberating Parallel Serial © 2018 Pearson Education, Inc.

Which type of reflex is associated with reciprocal inhibition? Monosynaptic Stretch Withdrawal Patellar Answer: c © 2018 Pearson Education, Inc.

Which type of reflex is associated with reciprocal inhibition? Monosynaptic Stretch Withdrawal Patellar © 2018 Pearson Education, Inc.

Which of these is an autonomic reflex? Stretch Withdrawal Salivation Crossed extensor Answer: c © 2018 Pearson Education, Inc.

Which of these is an autonomic reflex? Stretch Withdrawal Salivation Crossed extensor © 2018 Pearson Education, Inc.

Which of these is the receptor for a stretch reflex? Muscle spindle Tactile corpuscle Flexor muscle Extensor muscle Answer: a © 2018 Pearson Education, Inc.

Which of these is the receptor for a stretch reflex? Muscle spindle Tactile corpuscle Flexor muscle Extensor muscle © 2018 Pearson Education, Inc.

Which of these diagnostic tests produces a different result in normal babies than in normal adults? Abdominal reflex Babinski reflex Patellar reflex Ankle-jerk reflex Answer: b © 2018 Pearson Education, Inc.

Which of these diagnostic tests produces a different result in normal babies than in normal adults? Abdominal reflex Babinski reflex Patellar reflex Ankle-jerk reflex © 2018 Pearson Education, Inc.

Which of these is NOT involved in locomotion (walking and running)? Polysynaptic reflexes Reciprocal inhibition Reverberating circuits Autonomic reflexes Answer: d © 2018 Pearson Education, Inc.

Which of these is NOT involved in locomotion (walking and running)? Polysynaptic reflexes Reciprocal inhibition Reverberating circuits Autonomic reflexes © 2018 Pearson Education, Inc.

An injury to your anterior thigh would be transmitted to the brain via the ___ nerve. saphenous sciatic femoral ansa cervicalis Answer: c © 2018 Pearson Education, Inc.

An injury to your anterior thigh would be transmitted to the brain via the ___ nerve. saphenous sciatic femoral ansa cervicalis © 2018 Pearson Education, Inc.