Nerve supply to the abdominal wall

Question 1

Action of nerve supply of GI secretion

Answer 1

Sympathetic: decreases
Parasympathetic: increases

Question 2

Action of nerve supply of Peristalsis of GI tract?

Answer 2

Sympathetic: Inhibits
Parasympathetic: Increases

Question 3

Action of nerve supply on blood vessels

Answer 3

Sympathetic: leads to vasoconstriction
Parasympathetic: leads to vasodilation

Question 4

What is the sympathetic nerve innervation of the GI?

Answer 4

• Abdomino-pelvic splanchinic nerves
• Prevertebral sympathetic ganglia
• Abdominal aortic plexus

Question 5

What is the parasympathetic nerve innervation of the GI?

Answer 5

• Anterior and posterior vagal trunk

- Pelvic splanchnic nerves

Question 6

What is the effect of a vagotomy?

Answer 6

Decreases gastric secretion

Question 7

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

Answer 7

Pelvic splanchnic nerve is parasympathetic

Others are sympathetic

Question 8

What is the difference between the sympathetic and parasympathetic Ganglia?

Answer 8

Sympathetic ganglia: thoracic-lumbar

Parasympathetic ganglia: cervical-sacral