Lecture 3 Flashcards
Nerve types in pelvic structures
Sympathetic, parasympathetic, visceral afferent
Nerve types in perineum
Somatic motor and somatic sensory
Type of nerve fibres that allow pain sensation in pelvic organs
Visceral afferent
Visceral afferent nerve fibres of pelvic structures touching the peritoneum run alongside what?
Sympathetic fibres
Where do visceral afferent nerve fibres of pelvic structures touching the peritoneum enter the spinal cord?
Between T11 & L2
Where would pain be perceived in pelvic structures that touch the peritoneum?
Suprapubic
Visceral afferent nerve fibres of pelvic structures not touching the peritoneum run alongside what?
Parasympathetic fibres
Where do visceral afferent nerve fibres of pelvic structures not touching the peritoneum enter the spinal cord?
S2-S4
Where would pain be perceived in pelvic structures that dont touch the peritoneum?
S2-S4 dermatome (perineum area)
Pain sensation nerve fibre types below the levator ani
Somatic sensory
Nerve that allows pain sensation below the levator ani
Pudendal nerve
What pain does the pudendal nerve produce?
Localised pain within perineum
Sympathetic nerves of pelvis
Sacral sympathetic trunks, T11-L2, superior hypogastric plexus
Parasympathetic nerves of pelvis
Sacral outflow (S2,3,4), pelvic splanchnic nerves, mix with sympathetics in inferior hypogastric plexus
Where is the needle inserted for a spinal/epidural anaesthetic?
L3/L4 (vertebra above highest point of iliac crest is L4)
