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Question 1

neurotransmitter of parasympathetic nervous system

Answer 1

acetylcholine: liberated and destroyed locally = more specific than symp’s neurotransmitter

Question 2

explain briefly the organisation of the parasymp NS

Answer 2

the PS response is assisted by the ggl being close to target organ - or within it

outflow from brainstem and sacral part of medulla spinalis

in head the PS fibers are othen embedded in other somatic(motor - volunary) nerves

Question 3

name the 3 nerves of the PS system of the head and their paired ganglia

Answer 3

IX glossopharyngeus -> otic ganglia(PS) -> zygomatic and parotid gland

VII facial

• > mandibular ggl(not PS) -> mandibular and sublingual gl.
• > ggl. pterigopalatinus(PS) -> lacrimal gland and nasal gl.

III oculomotoricus -> ggl. ciliare(PS) -> ciliary smooth m. and pupil contrictor m.

Question 4

name the only 100%PS nerve and its course in thoracic cavity and the abdominal cavity

Answer 4

X - n. vagus
prox et dist ggl at for. jugulare
pregangleonic fibers connect to ggl of target organ

supply: heart, lung, larynx, abdominal viscera(organs)

Question 5

PS in pelvic cavity: pars sacralis of medulla spinalis: its nerves and ganglia

Answer 5

r. ventralis -> nn. pelvini -> pl. retroperitoneus (with S n. hypogastricus)

small ggl:
intramural ggl. found in plexus
terminal ggl. found in pevic viscera(organs)

Question 6

what 6parts are innervated by the p. sacralis of PS NS

Answer 6

1. colon descendens
2. rectum
3. bladder
4. uterus and vagina
5. accessory glands
6. genital erectile tissue
   - -> contract bladder wall, vasodilate erectile tissue