Anatomy Flashcards
What is the 2 anatomy structures of the pelvis & region
- True pelvis:
Inferior part of pelvic bones, sacrum & coccyx
Inlet & outlet - False pelvis:
Superior region of pelvic bone & lower lumbar vertebrae
Part of abdomen
What is the 3 cavities in the abdomen area
- Abdominal cavity
- Pelvic cavity
- Perineum
What is the 3 functions of the pelvis
- Weight bearing
- Support & protecting viscera
- Muscle attachment
What is the pelvic viscera
Reproductive organs, urinary bladder & rectum
Where is the connection between urinary & reproductive tract
Pelvic cavity
What does the perineum anchor
External genitalia
What is the 2 tissue types that root of external genitalia consist of
Erectile or vascular tissue
Skeletal muscle
What is another name for pelvic inlet
Pelvic brim
What anatomical landmark does the pelvic inlet divide
True & false pelvis
What 3 structures forms the pelvic walls
Bone, muscle & ligaments
What ligaments form the greater & lesser sciatic notches
Sacrospinous & sacrotuberous ligaments
What muscles is involved in forming the walls of the pelvic
Piriformis & obturator internus
Where can you find the piriformis muscle
Greater sciatic notch
Where can you find the obturator internus muscle
Lesser sciatic notch
What lines the superior aspect of pelvic viscera
Peritoneum
What is the shape of the pelvic outlet
Diamond shape
What 3 bones form the pelvic outlet
Pubic symphysis, ischial tuberosities & coccyx
What does the pelvic floor separate
Pelvic cavity from perineum
What is the muscles of the pelvic diaphragm
- 3 levator ani muscles: illicoccygeus, pubococcygeus & puborectalis muscles
- Coccygeus muscles
What is the 2 openings in the pelvic floor
- Urogenital hiatus
- Rectal hiatus
What is the perineal membrane
Thick triangular facial sheet
Where is the deep perineal pouch
Narrow region superior to perineal membrane
Where is the perineum located
Inferior to pelvic floor between lower limbs
Where is the line diving the 2 triangles
Between ischial tuberosity
What is the anterior & posterior triangles
Anterior urogenital triangle
Posterior anal triangle
What is the anatomical borders of the triangles (anterior, inferior & lateral)
Anterior pubic symphysis
Inferior tip of coccyx
Lateral ischiopubic rami & sacrotuberous ligament
What is the surface borders of the triangles (anterior, inferior & lateral)
Anterior mons pubis
Inferior intergluteal cleft
Lateral medial surface of thigh
In what planes are the urogenital & anal triangles
Urogenital horizontal plane
Anal tilted upwards & posteriorly
What is the ceiling of the anal triangle
Pelvic diaphragm
What is the major muscle of anal triangle
External anal sphincter
Where can you find the superficial perineal pouch
Urogenital triangle
Between perineal membrane & membranous layer or superficial fascia
What 2 tissues are found in urogenital triangle
Erectile tissue of penis/clitoris
Skeletal muscle
What is the 3 muscles of the penis
Ischiocavernosus, bulbospongiosus & superficial transverse perineal muscles