Exam 4 Autonomic Nervous System Flashcards Preview

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Flashcards in Exam 4 Autonomic Nervous System Deck (66):
1

The splanchnic component of the autonomic nervous system innervates all of the following except:
- viscera
- glands
- blood vessels
- striated muscle

Striated muscle (should be non-striated)

2

There are at least two neurons which interpose between the central to somatic effectors. True or False

False (central to visceral effectors)

3

Axons of the primary neurons of the autonomic nervous system are usually unmyelinated and pass to the peripheral ganglia. True or False

False (myelinated)

4

The disproportion between preganglionic and postganglionic neurons is lesser in the parasympathetic system than in the sympathetic system. True or False

True

5

The disproportion between preganglionic and postganglionic neurons of the parasympathetic nervous system is 1:___

1: 15-20

6

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

7

The visceral afferent paths resemble somatic efferent paths. True or False

False (resemble somatic afferent)

8

The parasympathetic preganglionic efferent fibers emerge through all of the following except:
- oculomotor nerve
- trigeminal nerve
- vagus
- second sacral nerve

Trigeminal nerve

9

The sympathetic preganglionic efferent fibers appear through all thoracic and first, second, and/or third lumbar spinal nerves which is known as ___ outflow.

Thoracolumbar

10

What nerves are included in the sympathetic preganglionic efferent fibers outflow?

T1-L2 or L3

11

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

12

All of the following carries myelinated preganglionic parasympathetic axons except:
- facial nerve
- accessory cranial nerve
- third sacral spinal nerve
- trigeminal nerve

Trigeminal nerve

13

Name the myelinated preganglionic parasympathetic nerves

Oculomotor
Facial
Accessory cranial neve
Vagal
S2, S3, S4

14

All of the following are peripheral ganglia of the cranial part of the parasympathetic system except:
- otic ganglion
- genicular ganglion
- submandibular ganglion
- ciliary ganglion

Genicular ganglion

15

Name the four peripheral ganglia of the parasympathetic system

Otic
Pterygopalatine
Submandibular
Ciliary

16

Name the nerve which carries postganglionic parasympathetic fibers to the constrictor pupillae.

Short ciliary N

17

Name the nerve which carries facial preganglionic parasympathetic fibers from the main facial trunk

Chorda Tympani of facial nerve

18

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)

19

Name the branch of the glossopharyngeal nerve which carries preganglionic parasympathetic fibers.

Tympanic nerve

20

Which of the following ganglia is not a peripheral ganglion for the cranial parasympathetic nerve?
- Genicular ganglion
- Submandibular ganglion
- Otic ganglion
- Pterygopalatine ganglion

Genicular ganglion

21

The pulmonary branch of the vagus is a bronchiodilator. True or False

False

22

The pelvic splanchnic nerve supply vasodilator fibers to all of the following except:
- corpora cavernosa
- corpus spongiosum
- glans of the penis
- prepuce

Glans of the penis

23

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

24

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

25

Name the branch of the glossopharyngeal nerve which carries the parasympathetic efferent fibers to the parotid gland.

Tympanic nerve of Glossopharyngeal

26

The disproportion or ratio of the sympathetic nervous system between the preganglionic and postganglionic fibers is ___

1: 196

27

The sympathetic nervous system innervates all of the following except:
- sweat glands
- ciliary body
- arrectores pilorum
- constrictor pupillae

Constrictor pupillae

28

Name the spinal cord segments where the somata of the preganglionic sympathetic fibers arise

T1-L2 or L3

29

What is the size in diameter of the axons of the white ramus communicants?

1.5 - 4 microns

30

Name the spinal cord segments of the outflow of the sympathetic nervous system

Thoracolumbar outflow

31

How many white rami communicans arise from the thoracic spinal nerve?

14 pairs of spinal cord

32

The sympathetic preganglionic fibers pass in the ventral spinal root as myelinated fibers. True or False

True

33

To reach a sympathetic ganglion, the preganglionic sympathetic fibers behave as the following except:
- they synapse in the nearest ganglion
- they transverse the nearest ganglion to reach the celiac ganglion to synapse
- they transverse the nearest ganglion and ascend or descend in the sympathetic chain to reach another ganglion for synapse
- they transverse the sympathetic chain ganglia and reach the effector organs to synapse

The last answer!

34

The postganglionic sympathetic fibers return to the spinal nerves through the white/gray rami communicans

Gray rami communicans

35

Most peripheral nerves contain postganglionic parasympathetic fibers. True or False

False (sympathetic)

36

Peripheral autonomic activity is integrated at the brainstem which includes all of the following except:
- limbic system
- thalamus
- hypophysis
- hypothalamus

Hypophysis

37

The internal carotid plexus communicates laterally with all of the following except:
- pterygopalatine ganglion
- tympanic branch of glossopharyngeal
- ciliary ganglion
- abducent nerve

Ciliary ganglion

38

Name the four structures the internal carotid plexus communicates with

Pterygopalatine ganglion
Tympanic branch of glossopharyngeal
Abducent nerve
Trigeminal nerve

39

Name the nerve which sends vasomotor rami to the hypophysis cerebri

Internal carotid plexus

40

Name the artery on which the right and left sympathetic system connect each other in the cranial cavity

Anterior communicating artery of Anterior cerebral artery

41

Name the sympathetic nerve which supplies the carotid body and pharyngeal plexus

Laryngopharyngeal branches

42

The largest sympathetic cardiac nerve arises from the ___ ganglion

Middle cervical ganglion

43

Name the sympathetic nerve which supplies the otic ganglion and the genicular ganglion

Internal carotid plexus

44

Name the ganglia which sends branches to enclose the vertebral artery

Middle cervical ganglion

45

Name the spinal cord segments which send the preganglionic sympathetic fibers to the head and neck

Upper 3 or 5 thoracic nerves

46

Name the sympathetic nerve which loops the first part of the subclavian artery

Ansa subclavia (loops both R and L)

47

The thoracic sympathetic trunk passes through the ___ to become the lumbar sympathetic trunk.

Crus of the diaphragm

48

The thoracic sympathetic trunk passes through or posterior to the following structures except:
- medial arcuate ligament
- right crus of diaphragm
- lateral arcuate ligament
- left crus of diaphragm

Lateral arcuate ligament

49

The thoracic sympathetic trunk passes dorsal to the ___ to become the lumbar sympathetic trunk

Medial arcuate ligament

50

The greater splanchnic nerve is formed by branches from the T5 to T9 or T10 ganglia. True or False

True

51

Name the thoracic sympathetic ganglia which form the lesser splanchnic nerve

T9 & T10

52

The lowest splanchnic nerve enters the abdominal cavity through the ___

Crus of diaphragm

53

How many lumbar sympathetic ganglia are in the human body on each side?

4 interconnected ganglia

54

All of the following are correct description about the lumbar sympathetic ganglia and trunk except:
- located in the extraperitoneal space
- located anterolateral to the lumbar vertebra
- located along the lateral margin of the psoas major
- superiorly it is posterior to the medial arcuate ligament

Located along the lateral margin of the psoas major (should be medial)

55

The first lumbar splanchnic nerve joins the following plexuses except:
- celiac plexus
- intermesenteric plexus
- renal plexus
- superior hypogastric plexus

Superior hypogastric plexus

56

Name the nerve which joins the hypogastric nerve from the lumbar sympathetic chain ganglia.

Fourth lumbar splanchnic nerve

57

Name the artery on which the lower lumbar splanchnic nerves form a plexus.
- common iliac artery
- internal iliac artery
- external iliac artery
- obturator nerve

Common iliac artery

58

The pelvic sympathetic trunk locates medial to the ventral sacral foramina. True or False

False (anterior sacral foramina)

59

Which of the following is not a correct description of the pelvic sympathetic trunk with its ganglia?
- it sends grey rami communicants to the sacral and coccygeal spinal nerves
- it lies laterally to the ventral sacral foramina
- it has 4 or 5 interconnected ganglia
- inferiorly the R or L trunk converge to the ganglion impar

It lies laterally to the ventral sacral foramina (should be medially)

60

The ganglion impar is the part of the parasympathetic nervous system. True or False

False (sympathetic)

61

The heart receives the sympathetic fibers from the

T1- T5

62

The segmental sympathetic nerves to kidney are

T10 - L1

63

Name the two interconnected ganglionated plexuses in the enteric nervous system.

Myenteric (Auerbach's) plexus
Submucous plexus

64

The submucous plexus extends from ___ to the ___

Stomach to the internal anal sphincter

65

The submucous plexus is between what layers

Mucus muscularis and internal circular muscle layer

66

What do the enteric sensory neurons monitor?

Intestinal wall tension and intestinal contents