Male and Female Perineum Flashcards
1
Q
- What forms the trigone of the urinary bladder?
- What is the superior limit of the trigone?
- What is the swelling at the posterior wall of the urinary bladder at the internal urethral orifice called?
A
- Two ureteric orifices and internal urethral orifice
- Interureteric fold-superior limit of the trigone
- Uvula of the urinary bladder
2
Q
- _ muscle is the primary component of the wall of the urinary bladder and is surrounded by _ fascia
A
- Detrusor
- Vesical fascia (loose CT)
3
Q
- Parts of the urinary bladder and their locations
A
- Apex-anterior portion
- Body-between apex and fundus
- Fundus-posterior part furthest away from internal uretheral orifice
- Neck-tapers off into urethra
4
Q
- What are the parts of the male urethra?
A
- Preprostatic urethra (in neck of urinary bladder)
- Prostatic urethra (in prostate gland and communicates with prostatic utricle and ejaculatory duct)
- Membranous urethra (short, through external uretheral sphincter
- Spongy urethra (inside corpus spongiosum)
5
Q
- What are the parts of the prostatic urethra?
A
- Urethral crest
- Median ridge that swells in center of prostate gland as seminal colliculus and is surrounded on either side by prostatic sinuses)
- Prostatic sinus
- Space on either siode of seminal colliculus and urethral crest
Accepts secretions from prostatic ductules
- Space on either siode of seminal colliculus and urethral crest
- Seminal colliculis
- Rounded mound on urethral crest and has slit openings
- Prostatic utricle (small blind end pouch on seminal colliculus-remnant of uterovaginal canal)
- Openings for ejaculatory ducts
- Rounded mound on urethral crest and has slit openings
6
Q
- Where is the spongy urethra located?
- What are the components of the spongy urethra?
A
- Corpus spongiosum
- Intrabulbar fossa
- Internal expansion of spongy urethra in bulb of penis
- Receives secretions from bulbourethral glands
- Navicular fossa
- Internal expansion of spongy urethra in glans penis
- Urethral glands
- Mucus secreting glands that empty directly into spongy urethra
- Intrabulbar fossa
7
Q
- Rectum
- Transverse rectal folds
- Anorectal flexure
- Ampulla
A
- Transverse rectal folds
- Three, superior middle and inferior of mucosa and submucosa layers
- Anorectal flexure
- At levator ani muscles
- Important for fecal continence
- Ampulla
- Holds fecal mass until defecation
8
Q
- Anal canal
- Anal columns
- Anal valves
- Anal sinuses
A
- Anal columns
- Ridges that run longitudinally
- Contain terminal branches of superior rectal a. and v.
- Anal valves
- pockets in mucosa that define anal sinuses
- Exist at inferior ends of anal columns
- Anal sinuses
- Small recesses, when compressed, exude mucus to aid in evacuation of anal canal
9
Q
- Penile raphe
- Scrotal raphe
- Perineal raphe
A
- Midline skin fold between glans penis and scrotum
- Midline skin fold between penile raphe and perineal raphe
- Midline skin fold between scrotal raphe and anus
10
Q
- Ductus deferens
A
- Muscular tube
- Conveys sperm
- Continuation of duct of epididymis
- Begins at tail of epididymis
- Travels thru inguinal canal as part of spermatic cord
- Enters pelvis
- Swells to ampulla of ductus deferens and joins with ducts of seminal vesicles to form ejaculatory duct
11
Q
- _ of the ductus deferens is the part closest to the ejaculatory duct
A
- Ampulla
12
Q
- Deferentectomy/Vasectomy
A
- Ligation and or excision of ductus deferens thru incision in superior scrotum
- Rendering ejaculation of spermatozoa
13
Q
- Testicular artery branches directly off of _ and supplies testis
- Pampiniform venous plexus drains into _ vein
- _ innervates the cremaster m.
- Lymphatics of the spermatic cord drain into _ lymph nodes
- Artery of ductus deferens comes from _ vessel
- Cremasteric a. comes from _ and supplies cremaster m.
- _ nerve produces anterior scrotal nerve
A
- abdominal aorta
- testicular
- Genital branch of genitofemoral n.
- Lumbar
- Inferior vesical a.
- Inferior epigastric a.
- Ilioinguinal n.
14
Q
- Layers of the Scrotum (superficial to deep)
A
- Skin
- Dartos fascia
- Dartos m.
15
Q
- Layers of the spermatic cord (superficial to deep)
A
- External spermatic fascia (from external oblique aponeurosis)
- Cremasteric fascia (from internal oblique aponeurosis)
- Internal spermatic fascia (from transversalis fascia)
