Pelvic And Perineal Osteology And Arthrology Flashcards
The “True” Pelvis is located between which two structures (Above and Below)?
Located between the Pelvic Brim and Pelvic Diaphragm
Where is the perineum located?
Inferior to the Pelvic diaphragm, between the thighs and buttocks, and from the coccyx to the pubis
How do structures (obturator A., N. and V.) get in and out of the obturator foramen?
Obturator Groove
Which muscle is going to insert on the Iliopubic Eminence?
Psoas Minor M.
Explain the different derivatives of the:
- Median Sacral Crest
- Medial Sacral Crest
- Lateral Sacral Crest
Fused Spinous Processes (Median SC)
Fused Articulating Processes (Medial SC)
Fused Transverse Processes (Lateral SC)
Differentiate between Pelvic Brim and Pelvic Girdle.
Bony Pelvis: 2 Coxal Bones and Sacrum (Promontory)
Pelvic Girdle: 2 Coxal Bones joined at the Pubic Symphysis
Linea terminalis is composed of which two parts?
- Pectineal Line (Pubic bone)
2. Arcuate Line (Ilium)
Differentiate Between Spondylolysis and Spondylolisthesis.
Spondylolysis: Separation of the vertebral arch from vertebral body
Spondylolisthesis: Abnormal anteriolry directed separation of L5 vertebral segment from sacrum
Which structures are above and below the Pelvic Canal?
Superior and Inferior Pelvic Aperture
Describe the different morphological changes in the male and female pelvis.
Male: Thicker, heavier, deeper greater pelvis, narrower and deeper lesser pelvis, ANDROID Pelvic Inlet, small pelvic outlet, narrow pubic arch, ROUND obturator foramen, and LARGE acetabulum.
Female: GYNECOID Pelvic Inlet, and opposite of the males.
With Pelvic Fractures or Crush fractures, which two parts of the os coxae are normally crushed?
Superior and Inferior Pubic Rami
The Pubic Symphysis is made up of which type of cartilage? Which type of joint?
Fibrocartilage. Symphysis Joint
The sacroiliac joint is said to be a compound joint, describe the different joint types that are involved.
Anterior: B/w Auricular surface (sacrum) and Articular surface (Ilium) - (Planar Synovial)
Posterior: B/w Sacral and Ischial Tuberosities (Fibrous Syndesmosis)
The Posterior Sacroiliac L. has a long and a short component. Which ligament does the long component blend into as it moves inferiorly?
Sacrotuberous L.
Which Ligament is important in forming the Greater Sciatic Notch? Lesser Sciatic Notch?
Greater SN: Sacrospinous Ligament
Lesser SN: Sacrotuberous Ligament
Name the different “pouches” in males (1) and females (2) where fluid can build up in the most inferior part of the peritoneum.
Male: Rectovesical Pouch
Femal: Rectouterine Pouch and Vesicouterine Pouch
Name the different parts of the broad ligament of the uterus (4).
- Mesometrium
- Mesosalpinx
- Mesovarium
- Suspensory Ligament of the Ovary
Which two ligaments are going to make up the Tendinous Arch of Pelvic Fascia? (Different in female and male)
- Anterior
- Puboprostatic L. (male)
- Pubovesical L. (female)
- Posterior (Sacrogenital)
- Rectoprostatic L. (male)
- Uterosacral L. (female)
He said these are considered Parietal!
The obturator fascia is going to lie on the Pelvic Side of which muscle?
Obturator Internus M.
What forms the walls of the Pudendal Canal and what structures will pass through it?
Obturator Fascia
Pudendal Nerve and Internal Pudendal Artery
The Hpogastric Sheath is part of which fascial Layer? Name the different parts of the sheath (3).
Condensed Endopelvic Fascia
- Lateral L. of Bladder (Anterior)
- Middle Lamina of Hypogastric Sheath
- Rectovesical Septum (Male)
- Transverse Cerival L. (Female)
- Lateral Rectal L. (Posterior)
Which two ligaments do we have to worry about after a mother has given birth?
- Transverse Cervical L. (Aka Cardinal L.)
2. Uterosacral L. (from Parietal membranous fascia and part of the Tendinous Arch)
The Inguinal Ligament is attached to which two structures?
ASIS and Pubic Tubercle
Name the Ligament that is deep to the Posterior Sacroiliac Ligament.
Interosseous Sacroiliac Ligament
Creates the Iliac and Sacral Tuberosities. Really THICK!
What is the name of the structure that separates the Deep and Superficial Perineal Pouches?
Perineal Membrane
List the Contents in the Superficial Perineal Pouch (different for male and female).
Male: Bulb and Crura of Penis, Bulbs of vestibule, branches of the Internal Pudendal A. and V., and of the Pudendal N.
Female: Crura of Clitoris, Bulbs of the vestibule, Superficial Perineal M., Greater Vestibular Glands, Branches of Internal Pudendal A., V., and N.
List the Contents in the Deep Perineal Pouch (different for male and female).
Male: Membranous urethra, muscles of urogenital diaphragm, bulbourethral glands)
Female: Muscles of urogenital diaphragm and neurology
What forms the obturator canal and which structures pass through it?
Obturator Membrane
Obturator A., V. and N.
State the location and purpose of the Ischioanal Fossa.
Located around the wall of the Anal Canal, inferior to the Pelvic Diaphragm.
Its function is to allow for expansion of the Anal Canal during defecation.
Name the two structures that are part of the Anal Triangle.
- Ischioanal Fossa
2. Pudendal Canal
Name the five structures that are part of the Urogenital Triangle.
- Perineal Membrane
- Superficial Perineal Fascia
- Deep Perineal Fascia
- Superficial Perineal Pouch
- Deep Perineal Pouch
Name the structure that is considered the overlapping point between the Ischial Ramus and the Inferior Pubic Ramus.
Ischiopubic Ramus
Name the main component of the Condensed Endopelvic Fascia
Hypogastric Sheath
