Nerve supply to the abdominal viscera

Question 1

What is the sympathetic supply to the abdominal viscera from?

Answer 1

Abdominoplevic splanchnic nerves
Pre vertebral sympathetic ganglia
Abdominal aortic plexuses

Question 2

What is the parasympathetic supply to the abdominal viscera from?

Answer 2

Anterior and posterior vagal trunks (vagus nerve)

Pelvic splanchnic nerves (S2, S3 and S4)

Question 3

What is the outcome of parasympathetic supply on GI secretion?

Answer 3

Increased secretion

Question 4

What is the outcome of sympathetic supply on peristalsis?

Answer 4

Decreased peristalsis

Question 5

What is the effect of parasympathetic supply on blood vessels in the gut?

Answer 5

Vasodilation

Question 6

What is the effect of vagotomy on gastric secretion?

Answer 6

Reduces gastric secretion

Question 7

What is the functional difference between the greater, lesser + least splanchnic nerves and the pelvic splanchnic nerves?

Answer 7

Pelvic splanchnic are parasympathetic

Question 8

What is the main difference in the arrangement of ganglia in the sympathetic and parasympathetic nervous systems?

Answer 8

Sympathetic ganglia sit near the vertebrae

Parasympathetic sit closer to the target organ