Anatomy Flashcards
What is contained within the pelvic cavity?
- ovaries
- uterine tubes
- uterus
- superior part of the vagina
What separates the pelvic cavity and perineum?
- the pelvic floor
What is contained within the perineum?
- inferior part of the vagina
- perineal muscles
- bartholin’s glands
- clitoris
- labia
What is the female primary organ of reproduction?
- ovaries
What is the peritoneum?
- floor of the peritoneal cavity
- roof of the pelvic cavity
2 pouches formed by the peritoneum in females?
- recto-uterine
- vesico-uterine
What are the 2 main ligaments associated with the uterus
- broad ligament
- round ligament
Where is the round ligament found?
- proximal part is contained within the broad ligament
- passes through the pelvis
- through inguinal canal
- to the superficial fascial of the labia
Where is the broad ligament found? and what is its role
- double layer of peritoneum over the uterine tube
- maintains uterus in the midline
3 layers of the uterus?
- perimetrium
- myometrium
- endometrium
How can the position of a normal uterus be explained anatomically?
- anteverted (relative to vagina)
- anteflexed (relative to cervix)
What holds the uterus in place?
- strong ligaments
- endopelvic fascia
- muscles of the pelvic floor
During a cervical screening cell samples from where are obtained?
- squamo-columnar
- transition zone
Where does fertilisation normally occur?
- the ampulla of the uterine tubes
What is a hysterosalpinogram?
- radiopaque dye to assess patency of the uterine tubes
Where do the ovaries embryologically develop?
- posterior abdominal wall
What aids the descent of the ovaries during embryological development?
- round ligament
What is the function of the ovaries?
- secrete oesterogen (response to FSH)
- Secrete progesterone (response to LH)
FSH role?
- oestrogen secretion from ovaries
- growth of ovarian follicles
LH role?
- progesterone secretion from corpus callosum in ovaries
- ovulation
The fornix of the vagina can be divided into what?
- anterior
- posterior
- 2xlateral
- pouches in vagina before cervix
Where is the perineum located?
- between skin and pelvic diaphragm
The perineum can be described as a diamond shape, what are the 2 divisions?
- urogenital triangle
- anal triangle
What is the perineal body?
- composed of collagenous and elastic tissue
- important for pelvic floor strength
Where are Bartholin’s glands located and their role?
- located in the perineum
- secrete lubricating fluid
What is the main muscle that makes the pelvic floor?
- levator ani
- composed of 3 smaller
Nerve supply to the levator ani?
- skeletal (voluntary)
- S3,4,5 (Sacral)
- S2,3,4 (Puedendal)
What is the name of the space deep to the breast tissue?
- retromammary space
4 quadrants of the female breast?
- upper outer
- upper inner
- Lower inner
- lower outer
Where does 75% of female breast lymph drain?
- axillary nodes -> subclavian node
Where might the inner quadrants of the female breast also have lymph drainage to?
- parasternal lymph nodes
Where might the lower inner quadrant of female breast also have lymph drainage to?
- abdominal lymph nodes
What level system is used in axillary clearance?
- in relation to pec minor
- level 1 = inferior and lateral to pec minor
- level 2 = deep to pec minor
- level 3 = superior and medial to pec minor
What is the blood supply to the female breast?
- internal thoracic (internal mammary) - branch of subclavian
- thoracic artery (branch of axillary)
- intercostal artery
What is the venous drainage of the female breast?
- follows arterial
- axillary vein
- internal thoracic vein
What are the 3 smaller muscles that make up the levator ani?
- puborectalis
- pubococcygeal
- ilococygeal
What is the pelvic floor?
- separates the pelvic cavity from perineum
3 major layers of the pelvic floor?
- pelvic diaphragm
- muscles of perineal pouches
- perineal membrane
What is the innermost layer of the pelvic floor
- pelvic diaphragm
what makes up the pelvic diaphragm?
- levator ani (puborectalis, pubococcygeus, iliococcygeus)
- coccygeus
How is urinary continence maintained?
- external urethral sphincter
- compressor urethrae
- levator ani
How is faecal continence maintained?
- puborectalis
What lies immediately superior to the pelvic diaphragm?
- deep perineal pouch
What muscles are contained within the deep perineal pouch?
- external urethral sphincter
- compressor urethrae
- deep transverse perineal muscle (males)
- smooth muscle band (females)
What is the perineal membrane
- between deep and superficial perineal pouch
- tough fascia
Where is the erectile tissue contained in the pelvic floor
- superficial perineal pouch
What is contained in the female superficial perineal pouch?
- clitoris and crura
- bulbs of vestibule
- bulbospongiosus
- ischiocavernosus
- greater vestibular gland (bartholins)
- superficial transverse perineal muscle