Unit VII - Sympathetics Flashcards Preview

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Flashcards in Unit VII - Sympathetics Deck (94)
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31

What is the name for the postganglionic branches that travel to the heart from the superior cervical ganglion?

Superior cardiac nerves

32

The superior cardiac nerves carry only what type of information?

Efferent

33

Which postganglionic branches of the superior cervical ganglion follow the common and external carotid arteries?

Anterior branches

34

What do the anterior branches of the postganglionic fibers of the superior cervical ganglion innervate?

Vessels that supply blood to structures inside and outside the skull

35

Which is the smallest of the cervical sympathetic ganglia?

Middle cervical ganglion

36

Where is the middle cervical ganglion located?

C6 level

37

The middle cervical ganglion communicates with anterior primary rami of C5 and C6 nerves via what structures?

Gray rami communicans

38

What branches of the middle cervical ganglion travel to the thyroid and parathyroid glands?

Thyroid branches

39

The thyroid branches of the middle cervical ganglion carry what type of fibers?

Vasomotor

40

Cardiac branches of which cervical ganglion travel to heart as middle cardiac nerves?

Middle cervical ganglion

41

The cardiac branches contribute to what plexus?

Deep part of the cardiac plexus

42

What is the frequency of the formation of a stellate ganglion?

80%

43

What is the location of the inferior cervical ganglion?

C7 transverse process level and neck of first rib

44

The inferior cervical ganglion communicates with the anterior primary rami of C7 and C8 (sometimes T1, if stellate ganglion is present) via what structures?

Gray rami communicans

45

Cardiac branches from the inferior cervical ganglion travel to the heart as what nerves?

Inferior cardiac nerves

46

Branches from the inferior ganglion are sent to which vessel?

Subclavian artery

47

Branches from the inferior cervical ganglion form plexuses around which vessels?

Subclavian, axillary, and vertebral arteries

48

USUALLY, how many thoracic ganglia do we see?

11 (sometimes 12)

49

In what area of the spine do we seen both white and gray rami communicans at all levels?

Thoracics

50

Where is the thoracic sympathetic trunk located in the superior thorax?

Anterior to rib heads

51

Where is the thoracic sympathetic trunk located in the lower part of the thorax?

Lateral aspects of vertebral bodies

52

What kinds of fibers are carried in the branches from the upper five thoracic ganglia?

Postganglionic and visceral afferent

53

Structures in the thoracic cavity are supplied by which of the thoracic ganglia?

Upper five

54

Three splanchnic nerves are associated with which of the thoracic ganglia?

Lower seven

55

What type of fibers are carried in the splanchnic nerves to plexuses in the abdominal and pelvic cavities?

Preganglionic and visceral afferent

56

What forms the greater splanchnic nerves?

5th-9th thoracic ganglia

57

Where does the greater splanchnic nerve terminate?

Celiac ganglion

58

What forms the lesser splanchnic nerve?

9th and 10th/10th and 11th ganglia

59

Where does the lesser splanchnic nerve terminate?

Aorticorenal ganglion

60

What forms the least splanchnic nerve?

12th ganglion