Parasympathetic

Question 1

What is the origin and relay of oculomotor nerve

Answer 1

Origin Edinger Westphal nucleus
Relay ciliary ganglia

Question 2

Functions of oculomotor nerve

Answer 2

Contraction of constrictor pupilae
Contraction of ciliary muscle (increase convexity )

Question 3

Facial nerve origin and relay

Answer 3

Origin superior salivary gland
Relay sphino-palatine
Submandibular

Question 4

Facial nerve functions

Answer 4

Lacrimal gland tear production
2/3 anterior tongue
Salivary gland true secretion
Mucous gland secretion
Vasodilation (salivary gland , floor of mouth, 2/3 anterior tongue

Question 5

Glossopharyngeal origin and relay

Answer 5

Origin inferior salivary gland
Relay Otic ganglion

Question 6

Glossopharyngeal function

Answer 6

Parotid salivary gland cause secretion true
Vasodilation posterior 1/3 tongue

Question 7

Vagus nerve origin and relay

Answer 7

Origin dorsal motor nerve of vagus in medulla oblongata
Relay terminal ganglia of thoracic & abdominal viscera

Question 8

Vagus nerve functions

Answer 8

Heart:decreased conductivity, contractility,excitability, v.c
Lungs: Bronco dilation, mucous secretion, v.d of pulmonary vessels
Liver: secretion of bile
Git: relaxation of sphincters, contraction of wall , VD, secretion of HCL , mucous secretion
Pancreas : release of pancreatic juice , insulin secretion

Question 9

Pelvic nerve origin, relay

Answer 9

Origin: s 2,3,4
Relay: terminal ganglia of organ body

Question 10

Pelvic nerve function

Answer 10

urinary bladder: relaxation of sphincter (micturition)
Contraction of walls
Rectum: relaxation of sphincter ( defecation)
Contraction of walls
Male genital organ: VD erection
Secretion seminal vesicle