BIO 141 FINAL EXAM QUESTIONS
AND ANSWERS
autonomic nervous system - Correct Answers -the part of the peripheral nervous system
that controls the glands and the muscles of the internal organs (such as the heart). Its
sympathetic division arouses; its parasympathetic division calms.
visceral reflex arc - Correct Answers -receptors, afferent neurons, interneurons, efferent
neurons, effectors
afferent neurons - Correct Answers -Nerve cells that carry impulses towards the central
nervous system
efferent neurons - Correct Answers -neurons that take information from the brain to the
rest of the body
Which houses motor neurons? - Correct Answers -anterior root of spinal nerve
The sympathetic nervous system and parasympathetic nervous system are divisions of
the __________. - Correct Answers -visceral motor division (autonomic nervous
system)
Which division detects stimuli of the general senses and special senses? - Correct
Answers -Somatic sensory division
Where does the motor portion of the facial nerve (VIII) originate? - Correct Answers -
Nuclei in the pons and medulla
Which of the following nerves does not originate from the brachial plexus? - Correct
Answers -Phrenic nerve
Which component of a somatic sensory neuron transmits an action potential from the
peripheral process to the posterior horn? - Correct Answers -Central process
The _________ nerve is the largest nerve from the posterior division, and of the lumbar
plexus. - Correct Answers -femoral
Which cranial nerve is generally thought of as a mixed nerve? - Correct Answers -
Glossopharyngeal nerve (IX)
Which nerve innervates most of the intrinsic and extrinsic muscles of the tongue? -
Correct Answers -Hypoglossal nerve (XII)
AND ANSWERS
autonomic nervous system - Correct Answers -the part of the peripheral nervous system
that controls the glands and the muscles of the internal organs (such as the heart). Its
sympathetic division arouses; its parasympathetic division calms.
visceral reflex arc - Correct Answers -receptors, afferent neurons, interneurons, efferent
neurons, effectors
afferent neurons - Correct Answers -Nerve cells that carry impulses towards the central
nervous system
efferent neurons - Correct Answers -neurons that take information from the brain to the
rest of the body
Which houses motor neurons? - Correct Answers -anterior root of spinal nerve
The sympathetic nervous system and parasympathetic nervous system are divisions of
the __________. - Correct Answers -visceral motor division (autonomic nervous
system)
Which division detects stimuli of the general senses and special senses? - Correct
Answers -Somatic sensory division
Where does the motor portion of the facial nerve (VIII) originate? - Correct Answers -
Nuclei in the pons and medulla
Which of the following nerves does not originate from the brachial plexus? - Correct
Answers -Phrenic nerve
Which component of a somatic sensory neuron transmits an action potential from the
peripheral process to the posterior horn? - Correct Answers -Central process
The _________ nerve is the largest nerve from the posterior division, and of the lumbar
plexus. - Correct Answers -femoral
Which cranial nerve is generally thought of as a mixed nerve? - Correct Answers -
Glossopharyngeal nerve (IX)
Which nerve innervates most of the intrinsic and extrinsic muscles of the tongue? -
Correct Answers -Hypoglossal nerve (XII)
