1 External carotid plexus. Plexus caroticus exter-nus. Autonomic nerve plexus around the external carotid artery. A

2 Common carotid plexus. Plexus caroticus com-munis. It surrounds the common carotid artery. A

3 Laryngopharyngeal branches. Rami laryn-gopharyngeales. Postganglionic fibers to the pharyngeal plexus. A

4 Superior cervical cardiac nerve. N. cardiacus cervicalis superior. Fibers to the cardiac plexus. A

5 Middle cervical ganglion. Ganglion cervicale medium. Often very small ganglion of the sympathetic trunk that lies at the level of C6 in front of or behind the inferior thyroid artery. A E

6 Vertebral ganglion. Ganglion vertebrale. Small accessory ganglion usually on the vertebral artery in front of its entrance into the foramen transver-sarium. A

7 Middle cervical cardiac nerve. N. cardiacus cervi-calis medius. It passes from the middle cervical ganglion to the deep part of the cardiac plexus. A

8 Cervicothoracic (stellate) ganglion. Ganglion cervicothoracicum (stellatum). Fusion of the inferior cervical ganglion with the 1st or, in many cases (ca. 75%) 2nd thoracic ganglion. A E

9 Ansa subclavia. Cord of nerve fibers forming a loop around the subclavian artery. A

10 Inferior cervical cardiac nerve. N. cardiacus cervicalis inferior. It passes to the deep part of the cardiac plexus. A

11 Subclavian plexus. Plexus subclavius. Autonomic nerve plexus around the subclavian artery. A

12 Vertebral nerve. N. vertebralis. Located behind the vertebral artery; it forms the vertebral plexus. A

13 Vertebral plexus. Plexus vertebralis. Network of nerves around the vertebral artery. A

14 Thoracic ganglia. Ganglia thoracica. 11-12 thickenings in the thoracic sympathetic trunk. AE

15 Thoracic cardiac branches. Rami cardiaci thoracici. Rami with efferent and afferent (pain) fibers passing fromT2-4(5) thoracic ganglia to the cardiac plexus. A E

15 a Thoracic plumonary branches. Rami pulmonales thoracici. Efferent fibers from T2-4 ganglia to the pulmonary plexus at the lung hilum.

15 b Esophageal branches. Rami oesophageales. Effer ent fibers from T2-5 ganglia.

16 Greater splanchnic nerve. N. splanchnicus major. It passes from sympathetic trunk ganglia 5-9(10) to the celiac ganglion and contains pre- and post-ganglionic fibers which conduct pain and other sensations from the upper abdominal organs. E

17 Thoracic splanchnic ganglion. Ganglion thoraci-cum splanchnicum. Accessory ganglion at the level of T9. It is incorporated into the greater splanchnic nerve. E

18 Lesser splanchnic nerve. N. splanchnicus minor. Arises from sympathetic trunkganglia 9-11 and is similar to the greater splanchnic nerve. E

19 Renal branch. Ramus renalis. Occasional branch from the lesser splanchnic nerve to the renal plexus. E

20 Lowest splanchnic nerve. N. splanchnicus imus. It often arises independently from the T12 ganglion and passes to the renal plexus. E

21 Lumbar ganglia. Ganglia lumbalia (lumbaria). The sympathetic ganglia of the lumber vertebral column, usually four on either side. B

22 Lumber splanchnic nerves. Nervi splanchnici lumbales (lumbares). Usually four nerves from the lumbar sympathetic trunk forming a plexus on L5. B

23 Sacral ganglia. Ganglia sacralia. Four smaller ganglia lying medial to the pelvis sacral foramina. B

24 Sacral splanchnic nerves. Nervi splanchnici sacrales. Two to three fine nerves from sacral ganglia 2-4. B

25 Ganglion impar. Last unpaired sympathetic trunk ganglion lying in front of the coccyx. B

26 PARASYMPATHETIC PART (SYSTEM). Pars para-sympathetica. Craniosacral component of the au-tonomic nervous system involving cranial nerves III, VII, IX, and X and sacral spinal nerves 2-4. Antagonistic to the sympathetic division, it slows down the heart beat and stimulates intestinal and sexual functions.

26a Cranial part. Pars cranialis.

27 Terminal nerve. N. terminalis. A slender, partly interwoven nerve of unknown function, but probably autonomic. It unites the olfactory region with the anterior perforated substance. C

28 Terminal ganglion. Ganglion terminale. It comprises all of the ganglion cells dispersed in the terminal nerves.

29 Ciliary ganglion. Ganglion ciliare. Located lateral to the optic nerve. It receives preganglionic fibers from the oculomotor nerve and gives off postgan-glionic fibers which constrict the pupil and contract the ciliary muscles during accomodation. D

30 Pterygopalatine ganglion. Ganglion pterygo-palatinum. Nerve that lies lateral to the spheno-palatine foramen, receives motor fibers from the facial nerve via the nerve of the pterygoid canal and supplies the lacrimal and nasal glands. D

31 Otic ganglion. Ganglion oticum. Situated below the foramen ovale and medial to the mandibular nerve. It receives motor fibers from the glos-sopharyngeal nerve via the lesser petrosal nerve and innvervates the parotid gland. D

32 Submandibular ganglion. Ganglion subman-dibulare. Located along the lingual nerve below the mandible. It receives motor fibers from the facial nerve via the chorda tympani and sends efferent fibers to the sublingual and submandibular glands. D

33 Sublingual ganglion. Ganglion sublinguale. Small accumulationsofcellsoccasionallypresentonthe glandular branches.

33 a Pelvic part (Pars pelvica). Sacral part of parasym-

pathetic division.

34 Pelvic splanchnic nerves. Nn. pelvici splanchnici (nn. erigentes). Parasympathetic fibers from S2-4 spinal nerves to the pelvic ganglia for the pelvic and genital organs. They also contain afferent fibers. B

35 Pelvic ganglia. Ganglia pelvica. Groups of auton-omic cells in the inferior hypogastric plexus. They give rise to the postganglionic axons. See p. 351 E

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