Unit VII - More Sympathetics Flashcards Preview

PNS Final > Unit VII - More Sympathetics > Flashcards

Flashcards in Unit VII - More Sympathetics Deck (77)
Loading flashcards...
1

The internal carotid nerve enters the cranial cavity with what vessel?

Internal carotid artery

2

What plexus is formed by the lateral internal carotid nerve?

Internal carotid plexus

3

What are the important connections made with the lateral carotid nerve and the internal carotid plexus?

Trigeminal ganglion, abducens nerve, formation of nerve of the pterygoid canal, formation of tympanic plexus

4

What is the association between the lateral internal carotid nerve and the trigeminal nerve?

Postganglionic sympathetic fibers can reach any structure within the field of distribution of the trigeminal nerves thanks to the connection with the trigeminal ganglion

5

What is the purpose of the connection between the internal carotid nerve and the abducens nerves?

Supply blood vessels in the lateral rectus

6

What is the connection between the internal carotid nerves and the lacrimal, nasal, palatine, and some pharyngeal glands?

Postganglionic fibers form the deep petrosal nerve which combines with greater petrosal nerve to form nerve to pterygoid canal to reach those glands

7

What is the association between the internal carotid nerve and the tympanic plexus?

Caroticotympanic nerves combine with tympanic branch of C.N. IX to form tympanic plexus to supply glands and bold vessels of middle ear

8

What plexus is formed by the medial internal carotid nerve?

Cavernous plexus

9

Where is the cavernous plexus located?

Within the cavernous sinus, alongside the sella turcica

10

Fibers from the medial internal carotid nerve travel through the ciliary ganglion to supply what structures?

Ciliaris and dilator pupillae muscles, some tarsus muscles of the upper eyelid

11

Other branches to what nerves reach blood vessels associated with muscles supplied by the medial internal carotid nerve?

Oculomotor nerves

12

The medial internal carotid nerve communicates with which cranial nerve to supply blood vessels in the superior oblique muscle?

Trochlear

13

Branches from the medial internal carotid nerve to what nerve and division supply arrector pili, sweat glands, and blood vessels in its field of distribution?

Ophthalmic division of the trigeminal nerve

14

The pituitary gland receives fibers from which nerve: lateral or medial internal carotid nerve?

Medial internal carotid nerve

15

Branches accompanying the inferior thyroid artery to supply the thyroid gland are from which cervical ganglion?

Middle cervical ganglion

16

Branches from the inferior cervical/stellate ganglion reach the subclavian artery to reach the upper extremities via what arteries?

Axillary and brachial arteries

17

Which branches of the cervical sympathetic trunk travel directly to visceral structures?

Laryngopharyngeal branches and cardiac branches

18

Laryngopharyngeal branches are from which cervical sympathetic ganglion?

Superior cervical ganglion

19

What do the laryngopharyngeal branches from the cervical sympathetic trunk help form?

Pharyngeal plexus (along with fibers from glossopharyngeal nerve, vagus nerve, and laryngeal plexus)

20

Cardiac branches come from which cervical ganglia?

All of them

21

The cardiac branches from the cervical sympathetic trunk accompany branches of which cranial nerve through the cardiac plexus and to which final destination?

Vagus nerve; sinoatrial node

22

What is the effect of sympathetic stimulation involving the cardiac branches of the cervical sympathetic trunk?

Increased heart rate and dilation of coronary arteries

23

What is supplied by each gray ramus communicans of the thoracic sympathetic trunk?

Arrector pili, sweat glands, blood vessels within each thoracic nerve distribution

24

Thoracic ganglia 1-5 send postganglionic fibers to which important vessel?

Thoracic aorta

25

Do the cardiac branches of the thoracic sympathetic trunk (T2-T4) contain afferents?

Yes

26

What is the supply of the pulmonary branches of the thoracic sympathetic trunk (T2-T4) as they travel through the pulmonary plexus?

Pleura, smooth muscle, blood vessels of lungs, bronchial glands

27

What sympathetic branches could be responsible for some of the issues seen with asthmatics?

Pulmonary branches (T2-T4) due to their effect on smooth muscle

28

What structures are supplied by the greater splanchnic nerve above the diaphragm?

Esophagus and thoracic aorta

29

Through what plexuses does the greater splanchnic nerve reach much of the abdominal viscera?

Gastric, hepatic, superior mesenteric plexuses via the celiac plexus

30

What is supplied by the lesser splanchnic nerve that is NOT supplied by the greater splanchnic nerve?

Suprarenal glands