Parasympathetic Division

Question 1

What is an alternate name of the Parasymp?

Answer 1

Craniosacral

Question 2

What are the 4 major cranial nerves and 3 sacral nerves associated with Parasymp’s preganglionic neurons?

Answer 2

CN3 Oculomotor

Cn7 Facial

CN9 Glossopharyngeal

CN10 Vagus

S2, S3, and S4

Question 3

CN3 Oculomotor: Cell Body Location

Answer 3

Edinger Westphal Nucleus of the midbrain of CNS

Question 4

CN7 Facial: Soma Location

Answer 4

Superior Salivatory Nucleus in medulla of CNS

Question 5

CN9 Glossopharyngeal Nerve: Soma Location

Answer 5

Inferior Salivatory Nucleus in Medulla

Question 6

CN10 Vagus: Soma Location

Answer 6

Dorsal Vagal Nucleus of medulla

Question 7

Sacral Nerves 2, 3, 4: Soma Location

Answer 7

Intermediate Gray matter of the sacral spinal cord

Question 8

Sacral Parasym Neurons: Preganglion fibers of S2, S3, and S4 exiting pathway

Answer 8

Exit spinal cord in the anterior/ventral root and leave the sacral spinal nerves as the pelvic splanchnic nerves

Question 9

Where do the pelvic splanchnic nerves travel to?

Answer 9

Some of the preganglionic axons enter the pelvic autonomic plexuses and supply the oragns in the pelives

Some asscend out of the pelvis via the hpogastric nerves to be distributed to the hundgut structures supplied by the inferior mesenteric artery

Question 10

What do the hypogastric nerves innervate?

Answer 10

Descending colon, sigmoid colon, and rectum

Question 11

CN3 Oculomotor: Pathway and Ganglion

Answer 11

Travel in the oculomotor nerve to synapse in ciliary ganglion located in the orbit

Question 12

CN 3 Oculomotor: Innervation

Answer 12

Ciliary and Sphincter eye muscles

Question 13

Cn3 Oculomotor: Action

Answer 13

Accommodation of the lens (ciliary) and constriction of the pupil (sphincter)

Question 14

CN7 Facial: Pathway and Ganglion (Salivation)

Answer 14

Preganglionic Para axons travel in the facial nerve and its branches synapse in the submandibular ganglion

Question 15

CN7 Facial: Innervation

Answer 15

Submadibular and Sublingual Salivary Glands

Question 16

CN7 Facial: Action

Answer 16

Stimulates Salivation

Question 17

CN7 Facial: Pathway and Ganglion (Secretions)

Answer 17

Facial Nerve –> Pterygopalatine Ganglion

Question 18

CN7 Facial: Innervation (Pterygopalatine)

Answer 18

Lacrimal Gland, glands in nasal cavity, pharynx and palate

Question 19

CN7 Facial: Action (Pterygopalatine)

Answer 19

Stimulates secretions

Question 20

Cn9 Glossopharyngeal: Location

Answer 20

Base of the skull near the foramen ovale

Question 21

C9 Glossopharyngeal: Pathway ang ganglion

Answer 21

Travels in C9 to synapse with otic ganglion

Question 22

C9 Glossopharyngeal: Innervation and action

Answer 22

Parotid Gland- Stimulates salivation

Question 23

C10 Vagus Nerve: Location

Answer 23

Numerous small ganglio located near to (in plexuses) or within walls of thoracic and abdominal viscera

Question 24

C10 Vagus: Pathways

Answer 24

Travel in plexuses to sunapse in ganglio on the walls of organs

Plexuses Include:

Cardiac Plexus

Pulmonary Plexus

Esophageal Plexus

Celial Plexus

Superior Mesenteric Plexus

Question 25

C10 Vagus: Innervation and action

Answer 25

Glands, Smooth Muscle and Cardiac muscle

Various actions depending on organ

Question 26

Sacral Nerves 2,3,4: Pathway

Answer 26

Travel to organs in inferior mesenteric plexus and other various division s of pelvic plexuses

Numerous small post ganglionic neurons located near or within walls of descending colon and sigmoid colon

Question 27

Sacral Nerves 2,3,4: Innervation

Answer 27

Glands and Smooth muscle associated with the pelvic viscera or distal colon