Classify each of the following statements according to the reflex it describes.
ID: 3517187 • Letter: C
Question
Classify each of the following statements according to the reflex it describes.
alowing siaterments according to the refex i describes ntrinsic defecation reflex Parasympathetic defecation reflex signal from rectal stretch receptors transmitted signal from rectal stretch receptors transmitted through myenteric plexus through pelvic nerve fibers efferent fibers located interneurons located in the sacral spinal cord efferent fibers located interneurons located in the myenteric plexus in the pelvic nerves in the myenteric plexusExplanation / Answer
Intrinsic defecation reflex- signals from rectal stretch receptors transmitted through myentric plexus- interneurons located in myentric plexus- efferent fibres located in the myentric plexus
Parasympathetic defecation reflex- signals from rectal stretch receptors transmitted through pelvic nerve fibres- interneurons located in sacral spinal cord- efferent fibres located in the pelvic nerves.
The intrinsic pathway is determined by the myentric plexus which reflexly causes peristalsis and sphincter changes. The parasympathetic pathway is mediated bye the S2-4 spinal nerve formation.