Innervation Flashcards
The Ilioinguinal nerve originates from
L1
The Ilioinguinal nerve enters the inguinal canal where
Superficial Inguinal Ring
The Ilioinguinal nerve supplies
Skin at root of penis in male and labia in female
The genitofemoral nerve originates at
L1-2
The genitofemoral nerve enters where
Deep inguinal ring
What structures in the male are supplied by genital branch of genitofemoral nerve
Scrotal Skin and Cremaster
The pudendal nerve arises from
Sacral Plexus
The pudendal nerve and artery innervate and supply
Skin and muscles of perineum
From which segmental level(s) does the pudendal nerve arise?
S2-4
What bony landmarks are used when performing a pudendal nerve block during labour
Ischial spine
The autonomic nerve supply to the pelvis originates from the
Pelvis Plexus or Inferior Hypogastric
The sympathetic fibres of pelvis originate from
L1 and 2 via hypogastric nerv and terminal sympathetic trunk
The sympathetic fibres of pelvis supply what male organs (4)
Vas Deferens
Seminal Vesicles
Prostate
Epididymis
The sympathetic fibres of pelvis supply what female organs (4)
Ovaries
Uterus
Fallopian Tubes
Vagina
Parasympathetic fibres in the pelvis originate from the
Pelvic Splanchic Nerves (S2-4)
Parasympathetic fibres in pelvis innervate
erectile tissues
In the thorax the splanchnic nerves are
Sympathetic
In the pelvis the splanchnic nerves are
parasympathetic
Which part of the autonomic nervous system has been affected when men unable to ejaculate?
Pudental Nerve
The majority of the erectile tissue in the penis is in the
Corpus Cavernosa
Sensory innervation of penis is through
Dorsal nerve of penis
Dorsal nerve of penis is a branch of
Pudendal Nerve
The internal Urethral Sphincter innervation
Involuntary
Pudental from S2-4
The external Urethral Innervation
Voluntary
Deep Branch Perineal S2-4
The contents of the vulva are (6) and they are supplied by
Mons Pubis Labia Majora Labia Minora Vestibule Bartholian Glands Clitoris
Pudental Nerve and Internal Pudental Artery
The contents of the vulva are supplied by
Pudendal Nerve and Internal pudendal Artery
The internal anal sphincter is under what control
Involuntary
The external anal sphincter is under what control
voluntary