Flashcards in Exam 4 Autonomic Nervous System Deck (66)
The splanchnic component of the autonomic nervous system innervates all of the following except:
- blood vessels
- striated muscle
Striated muscle (should be non-striated)
There are at least two neurons which interpose between the central to somatic effectors. True or False
False (central to visceral effectors)
Axons of the primary neurons of the autonomic nervous system are usually unmyelinated and pass to the peripheral ganglia. True or False
The disproportion between preganglionic and postganglionic neurons is lesser in the parasympathetic system than in the sympathetic system. True or False
The disproportion between preganglionic and postganglionic neurons of the parasympathetic nervous system is 1:___
Which of the following has the largest disproportion between preganglionic and postganglionic neurons?
- somatic efferent nervous system
- sympathetic nervous system
- parasympathetic nervous system
- branchial efferent nervous system
Sympathetic nervous system
The visceral afferent paths resemble somatic efferent paths. True or False
False (resemble somatic afferent)
The parasympathetic preganglionic efferent fibers emerge through all of the following except:
- oculomotor nerve
- trigeminal nerve
- second sacral nerve
The sympathetic preganglionic efferent fibers appear through all thoracic and first, second, and/or third lumbar spinal nerves which is known as ___ outflow.
What nerves are included in the sympathetic preganglionic efferent fibers outflow?
T1-L2 or L3
The enteric nervous system contains all of the following reflex pathways except:
- striated muscular contractions
- digestive enzyme secretion
- peristalsis reflex
- blood flow
Striated muscular contraction
All of the following carries myelinated preganglionic parasympathetic axons except:
- facial nerve
- accessory cranial nerve
- third sacral spinal nerve
- trigeminal nerve
Name the myelinated preganglionic parasympathetic nerves
Accessory cranial neve
S2, S3, S4
All of the following are peripheral ganglia of the cranial part of the parasympathetic system except:
- otic ganglion
- genicular ganglion
- submandibular ganglion
- ciliary ganglion
Name the four peripheral ganglia of the parasympathetic system
Name the nerve which carries postganglionic parasympathetic fibers to the constrictor pupillae.
Short ciliary N
Name the nerve which carries facial preganglionic parasympathetic fibers from the main facial trunk
Chorda Tympani of facial nerve
Which of the following nerves mainly carries the preganglionic parasympathetic fibers from the main facial nerve trunk to the parotid gland?
- posterior auricular nerve
- lacrimal nerve
- greater petrosal nerve
- nerve to stapedius
Lacrimal nerve (glossopharyngeal from inferior salivatory nucleus)
Name the branch of the glossopharyngeal nerve which carries preganglionic parasympathetic fibers.
Which of the following ganglia is not a peripheral ganglion for the cranial parasympathetic nerve?
- Genicular ganglion
- Submandibular ganglion
- Otic ganglion
- Pterygopalatine ganglion
The pulmonary branch of the vagus is a bronchiodilator. True or False
The pelvic splanchnic nerve supply vasodilator fibers to all of the following except:
- corpora cavernosa
- corpus spongiosum
- glans of the penis
Glans of the penis
Name the branch of the facial nerve which carries the preganglionic parasympathetic efferent fibers to control small glands in the nasal cavity, palates, and nasal sinuses above the oral cavity.
Greater Petrosal N of Facial
Name the branch of the facial nerve which carries the preganglionic parasympathetic efferent fibers to control the salivary glands and lingual glands below the oral cavity.
Chorda tympani of Facial
Name the branch of the glossopharyngeal nerve which carries the parasympathetic efferent fibers to the parotid gland.
Tympanic nerve of Glossopharyngeal
The disproportion or ratio of the sympathetic nervous system between the preganglionic and postganglionic fibers is ___
The sympathetic nervous system innervates all of the following except:
- sweat glands
- ciliary body
- arrectores pilorum
- constrictor pupillae
Name the spinal cord segments where the somata of the preganglionic sympathetic fibers arise
T1-L2 or L3
What is the size in diameter of the axons of the white ramus communicants?
1.5 - 4 microns