Lecture 10: Male and Female parts Flashcards
What are the potential spaces created in males and females by the peritoneum in the pelvis?
Males:
- Vesicorectal pouch
Females:
- Vesicouterine pouch and rectouterine pouch
What are the erectile tissues in females?
Crus of clitoris
- Becomes corpus cavernosum (2x)
- Contribute to body of clitorus
Bulb of vestibule
- Contributes to glans clitoris and surround vaginal orifice
What are the erectile tissues in males?
Crus of penis
- Corpus cavernosum x2
Bulb of penis
- Becomes corpus spongiosum of pens and glans penis
Describe the perineal musculature and their functions:
- Ischiocavernosus
- > Attached along ischiopubic rami
- > Aids erections (M)/Tense vagina (F)
- Bulbospongiosus
- > Attached post. to perineal body
Whats the bulbospongiosus variation in males/females:
Males: Attatched in midline raphe
Females: Divided either side of vaginal orifice
Whats the bulbospongiosus variation of function in males/females?
Males: Erection and ejaculation
Females: Clitoral erection and feelings of orgasm
Where do all vessels of the penis originate from?
All branches of Internal Pudendal (artery/vein)
What are the vessels of the penis?
- x2 Dorsal arteries (Accompanies dorsal nerves (from pudendal n.) BELOW DEEP FASCIA OF PENIS
- x1 Deep dorsal vein
- x2 Deep arteries (Inside corpora cavernosa)
and superficial dorsal veins of penis
NB equivilents in females but much smaller with shorter courses
Describe the structure of the testis:
- Tough fibrous outer capsule (tunica albuginea)
- Seminiferous tubules wind into lobules (1-3 per lobule) which opens into rete testis
- Efferent ductules connect rete to epididymis
- Epididymis stores sperm (3 degrees cooler, optimal)
- Epididymis becomes vas deferens
Describe the vas deferens and its anatomical connnections:
- Muscular tube
- Travels in spermatic cord
- Joins duct from seminal vesicle to form ejaculatory duct
- Ejaculatory duct into prostate to join urethra
Describe the course of the vas deferens:
- Enters body cavity lateral to inferior gastric art (from spermatic cord)
- Crosses over external iliac vessels, passing medially towards prostate
- Passes over the top of the ureter to join seminal vesicles (and form ejaculatory duct)
What are the seminal vesicles? and where are they located?
- Secrete liquid component of semen, fructose
- Posterior to bladder and superior to prostate
Where is the prostate, what does it contain and what does it do?
- Inferior to bladder
- Contains prostatic urethra and ejaculatory duct
- Adds proteolytic enzymes and acid phosphatase to semen
What vessels supply the prostate?
- Supplied by branches of internal iliac art.
- Veins -> Deep dorsal of penis - plexus - Internal iliac vein
What sort of tissue is the prostate and how can it be divided?
Prostatic tissue: Alveoli lined with columnar glandular epithelium (Embedded in thick muscular stroma)
Zones:
- Peripheral (majority of gland)
- Central (around ejaculatory ducts)
- Transitional (around urethra and mostly respondible for benign prostate hyperplasia)
- Anterior (non-glandular)