Shared Flashcard Set

Details

Pelvis & Perineum
Exam 8
67
Anatomy
Graduate
10/23/2010

Additional Anatomy Flashcards

 


 

Cards

Term
The bony pelvis is made up of two _____ _____ and one _______.
Definition
ossa coxae; sacrum
Term
The os coxa is made up of three parts:
Definition
ilium
ischium
pubis
Term
How many sacral vertebrae are there?
Definition
5
Term
The sacrospinous ligament runs from the _____ ______ to the sacrum.
Definition
ischial spine
Term
The sacrotuberous ligament runs from the _______ _______ to the sacrum.
Definition
ischial tuberosity
Term
What parts of the pelvis differ between males and females?
Definition
pelvis width (greater in females)
subpubic angle (greater in females)
greater sciatic notch (greater in females)
pelvic inlet (greater in females)
sacral curvature (less in females)
Term
What muscles make up the pelvic floor?
Definition
obturator internus
piriformis
levator ani
coccygeus
Term
origin of obturator internus
Definition
obturator membrane
Term
insertion of obturator internus
Definition
(through lesser sciatic foramen) greater trochanter (medial aspect)
Term
action of obturator internus
Definition
lateral rotation of the hip
Term
blood supply of obturator internus
Definition
obturator a.
Term
innervation of obturator internus
Definition
nerve to obturator internus
Term
origin of piriformis
Definition
sacrum (anterior and lateral aspect)
Term
insertion of piriformis
Definition
(through greater sciatic foramen) greater trochanter, anterior to obturator internus
Term
action of piriformis
Definition
lateral rotation of the hip
Term
blood supply of piriformis
Definition
inferior gluteal a.
Term
innervation of piriformis
Definition
sacral plexus
Term
What three muscles make up levator ani?
Definition
pubococcygeus
puborectalis
iliococcygeus
Term
origin of levator ani
Definition
body of pubis, tendinous arch
Term
insertion of levator ani
Definition
puborectalis--muscular sling around anorectal junction
Term
action of levator ani
Definition
support pelvic viscera
Term
blood supply of levator ani
Definition
internal pudendal a.
inferior rectal a.
Term
innervation of levator ani
Definition
nerve to levator ani
inferior rectal n.
coccygeal plexus
Term
origin of coccygeus
Definition
ischial spine
Term
insertion of coccygeus
Definition
sacrum, coccyx
Term
action of coccygeus
Definition
support pelvic viscera
Term
blood supply of coccygeus
Definition
lateral sacral a.
Term
innervation of coccygeus
Definition
perineal branches of S4, S5
Term
What are the points of the urogential triangle?
Definition
pubic symphysis and the 2 ischial tuberosities
Term
What are the 5 layers of the urogenital triangle from superficial to deep?
Definition
1. skin
2. superficial fascia
3. perineal membrane
4. urogenital diaphragm
5. superior fascia of urogenital diaphragm
Term
What is the perineal membrane?
Definition
inferior fascia of the urogenital diaphragm
Term
What is the urogenital diaphragm composed of?
Definition
sphincter urethrae and deep transverse perineal muscles
Term
The fatty layer of the superficial fascia is called...
Definition
Camper's fascia
Term
The membranous layer of the superficial fascia is called...
Definition
Colle's fascia
Term
Colle's fascia is continuous with ______ ______ of the penis and scrotum and ____ _____ of the anterior abdominal wall.
Definition
dartos fascia; Scarpa's fascia
Term
Colle's fascia is attached to what two things?
Definition
fascia lata (just distal to inguinal ligament)
inferior fascia of urogenital diaphragm
Term
Where is the deep perineal space?
Definition
between superior fascia and inferior fascia of the urogenital diaphragm
Term
Where is the superficial perineal space?
Definition
between Colle's fascia and inferior fascia of urogenital diaphragm
Term
What is found in the deep perineal fascia in a female?
Definition
urogenital diaphragm
urethra
vagina
branches/tributaries of internal pudendal a.
dorsal nerve of the clitoris
Term
What is found in the superficial perineal space in a female?
Definition
ischiocavernosus m. (on clitoral crus)
bulbospongiosus m. (on bulb of vestibule)
superficial transverse perineal m.
bulb of vestibule
greater vestibular gland
branches/tributaries of internal pudendal a. and v.
perineal branch of internal pudendal n.
Term
What is found in the deep perineal space in a male?
Definition
dorsal nerve of the penis
internal pudendal a.
urogenital diaphragm
urethra (membranous)
bulbourethral gland (Cowper's)
Term
What is found in the superficial perineal space in a male?
Definition
ischiovabernosus m. (on crus of penis)
bulbospongiosus m. (on bulb of penis)
superficial transverse perineal m.
branches/tributaries of internal pudendal a. and v.
perineal branch of pudendal n.
Term
What are the points of the anal triangle?
Definition
tip of the coccyx and the 2 ischial tuberosities
Term
What is the base of the ischioanal fossa?
Definition
skin
Term
What is the medial wall of the ischioanal fossa?
Definition
anal canal with levator ani and external anal sphincter
Term
What is the lateral wall of the ischioanal fossa?
Definition
ischium and obturator internus
Term
What is the posterior wall of the ischioanal fossa?
Definition
sacrotuberous ligament and gluteus maximus
Term
What is the anterior wall of the ischioanal fossa?
Definition
urogenital diaphragm
Term
What supports the anal canal?
Definition
fat
Term
What is the pudendal canal?
Definition
fibrous canal on the lateral wall of the ischioanal fossa
Term
The sacral plexus is made up of the _______ rami of spinal nerves ___-___.
Definition
anterior; L4-S4
Term
What nerve roots make up the pudendal n.?
Definition
S2, S3, S4
Term
What does the motor portion of the pudendal n. supply?
Definition
muscles of the perineum
Term
What does the sensory portion of the pudendal n. supply?
Definition
lower half of the anal canal
perianal skin
external genitalia
Term
What are the nerve roots of the pelvis splanchnic nerves?
Definition
S2, S3, S4
Term
The pelvic splanchnic nerves provide __________ innervation fo the pelvic viscera.
Definition
parasympathetic
Term
pudendal nerve block
Definition
injection of local anesthesia around the pudendal n. as it exits the pudendal canal near the ischial spine

provides anesthesia over S2-S4 dermatomes and lower 1/4 of vagina
Term
What are the autonomic nerves of the pelvis and perineum?
Definition
superior hypogastric plexus
inferior hypogastric plexus
sacral splanchnic nerves
pelvic splanchnic nerves
Term
The superior hypogastric plexus contains...
Definition
sympathetic, parasympathetic, and visceral afferent fibers
Term
The inferior hypogastric plexus contains...
Definition
postganglionic sympathetic, preganglionic sympathetic, and visceral afferent fibers
Term
The
Definition
Term
The sacral splanchnic nerves provide _________ innervation and come from _____ portion of _________ trunks.
Definition
sympathetic; sacral; sympathetic
Term
The pelvic splachnic nerves provide ___________ innervation and come from ______ outflow of ___________ division of ANS.
Definition
parasympathetic; sacral; parasympathetic
Term
piriformis syndrome
Definition
tight piriformis
sciatic n. travels through piriformis
compresses sciatic n. and causes pain
Term
Arteries of the pelvis are names for...
Definition
the organs they supply (NOT a branching pattern)
Term
Lymph nodes in the pelvis are arranged in a _______ along _____ ______ ______ and are named after the associated _____ _____.
Definition
chain; main blood vessels; blood vessel
Term
What are the three groups of pelvic lymph nodes?
Definition
common iliac
external iliac
internal iliac
Supporting users have an ad free experience!