L40: Perineum I Flashcards
What is the perineum?
Caudal pelvis wall
What is the perineal body?
Region between anus and vulva
What is the perineal region?
Perineum and external geitalia
In the perineal region, what two structures make up the digestive system?
Anus
Rectum
In the perineal region what are the reproductive structures of male and female (2 each)
Female: Vulva, vaginal vestibule
Male: testes, epididymis
The anus is composed of two sphincters- names?
External anal sphincter
Internal anal sphincter
What is the anus (ring)?
Caudal opening of the anal canal, includes the zona cutanea, zona hermorrahagica, and sphincters that close them
What is the anal canal?
Terminal region of the rectum
The anal canal is composed of what three layers and what is each made up of?
- Zona cutanea- strat squa kerat
- Zona hemorrhagica- Strat sqau non-kerat
- Zona columnaris- simple columnar epith
In the external anal sphincter, what three parts make this up?
- Subcutaneous part
- Superficial part
- Deep part
Skin of anus is made up of?
Subcutaneous tissue
The ischiourethrlais muscle of the perineal region is innervated with____? Its action is to ____?
Innervation: Pudendal neves
Action: Compress the urethra
The constrictor vulvae of the muscle of the perineal region is innervated with ____? Action is to ___?
Innervation: Pudendal nerves
Action: Closes (and everts) the vulva
The lymphatic drainage of the pelvic viscera drains to the _________?
Anorectal node
List some clinical procedures at the perineal region: (2)
Measurement of rectal temp
Rectal palpation*
