Innervation

Question 1

what innervates the stomach

Answer 1

both sympathetic and parasympathetic divisions of the autonomic nervous system arising from the vagus nerve and the coeliac plexus

Question 2

what are the branches of the celiac plexus

Answer 2

hepatic
splenic
gastric
pancreatic
suprarenal

Question 3

what is involved in innervation of the spleen

Answer 3

the celiac plexus, peripheral nervous system, sympathetic nervous system and the splenic plexus

Question 4

what makes up the splenic plexus

Answer 4

left celiac ganglion and the right vagus nerve

Question 5

what innervates the caecum

Answer 5

the superior mesenteric plexus

Question 6

what does the superior mesenteric plexus supply

Answer 6

provides sympathetic innervation to the caecum, appendix, ascending and transverse colon

Question 7

describe the innervation of the sigmoid colon

Answer 7

pelvic splanchnic nerves arising from the sacral spinal nerves and sympathetic innervation from the lumbar splanchnic nerves

Question 8

what innervates the descending colon

Answer 8

the inferior mesenteric plexus which innervates the colon from the left colic flexure to the rectum

Question 9

what innervates the anal sphincter

Answer 9

sacral ganglia and thoracolumbar ganglia

Question 10

what innervates the heart

Answer 10

cardiac plexus via the vagus nerve