Autonomics to the gut
“The PARAsympathetics follow a rule of TWO” [pair = two]:
The vagus does the top, the sacral splanchnics the outflow tract.
“The sympathetics follow a rule of threes”:
Greater, lesser, least splanchnic nerves go to the celiac,superior and inferior mesenteric ganglion.
“3, 4, 5 keeps the diaphragm alive”:
Diaphragm innervation is cervical roots 3, 4, and 5.
“I, I Get Laid On Fridays”:
- Iliohypogastric [L1]
- Ilioinguinal [L1]
- Genitofemoral [L1, L2]
- Lateral femoral cutaneous [L2, L3]
- Obtruator [L2, L3, L4]
- Femoral [L2, L3, L4]
Alternatively: “I twice Get Laid On Fridays”.
Alternatively: “Interested In Getting Laid On Fridays?”
Lumbar plexus roots
“2 from 1, 2 from 2, 2 from 3“:
- 2 nerves from 1 root: Ilioinguinal (L1), Iliohypogastric (L1).
- 2 nerves from 2 roots: Genitofemoral (L1,L2), Lateral Femoral (L2,L3).
- 2 nerves from 3 roots: Obturator (L2,L3,L4), Femoral (L2,L3,L4).
Pelvis: sacral innervation
“S2,3,4 keeps the 3 P‘s off the floor (Penis, Poo, and Pee).
S2,3,4 innervates the anal sphincter, urethral sphicter, and causes erection.
Penis autonomic innervation actions
“Parasympathetic Puts it up. Sympathetic Spurts it out”.
Alternatively: “Point and Shoot”: Parasympathetic Points it, Sympathetic Shoots out the semen.
Erection and Ejaculation (Emission).
Spinal cord: length in vertebral column
Spinal Cord Until L2 (LL).
You can suggest more mnemonics …
Dr. Indrajit Rana