Session 1: Pelvis and Male Reproductive Structures Flashcards
See pelvic landmarks on pg 8+9 of Pelvic Anatomy Booklet
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What differs in the greater pelvis in each gender?
Female shallower, male deeper
What differs in the lesser pelvis in each gender?
Female wide and shallow, male narrow and deep
What differs in the pelvic inlet in each gender?
Female oval and rounded, male heart-shaped
What differs in the pelvic outlet in each gender?
Female comparatively large, male comparatively small
What differs in the subpubic angle in each gender?
Female: obtuse angle, male: acute angle
What differs in the obturator foramen in each gender?
Female: oval, Male: round
What differs in the acetabulum in each gender?
Female: small, Male: large
What type of joint is the sacroiliac joint?
Synovial planar
What type of joint is the pubic symphysis?
Cartilagenous
Diagram of pubic joints pg 10 of the booklet
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Which muscles occupy the lateral pelvic wall?
Obturator internus
Which muscle is present in the posterior wall of the pelvis?
Piriformis
Which nerve network lies on the muscle forming the posterior wall of the pelvis?
Sacral plexus
Diagram of the pelvic floor: booklet page 11
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What are the perineal and anococcygeal bodies?
Irregular, fibromuscular masses which act as attachments for muscle fibres
What are the functions of the pelvic diaphragm (floor)?
Urinary and faecal continence
Support of abdominopelvic viscera
Resistance to increases in intrapelvic/abdominal pressure
What is the innervation of the pelvic diaphragm?
Levator Ani Muscles - Branches of the pudendal nerve (S2, 3, 4)
Coccygeus - Anterior rami of S4 and 5
Injury to the pelvic floor during childbirth is common and potentially damaging. Why?
????
Why does an episiotomy minimise long-term damage?
Helps to prevent uncontrolled tearing of the perineal muscles.
What are the main organs of the urinary system found in the pelvic viscera in each gender?
Males: Urinary bladder, urethra
Females: Urinary bladder, urethra
What are the main organs of the reproductive system found in the pelvic viscera in each gender?
Males: Prostate and other glands. ductus deferens
Females: Uterus, ovaries, vagina, uterine tubes
What are the main organs of the alimentary system found in the pelvic viscera in each gender?
Males: Rectum, anal canal
Females: Rectum, anal canal
What would you normally be able to palpate in males when performing a rectal examination?
Prostate, anal tone, rectal wall
What would you normally be able to palpate in females when performing a rectal examination?
Anal tone, rectal wall ???? Uterus
Diagram of the pelvic arteries, page 14 booklet
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What is the origin of the superior and inferior vesical arteries and what do they supply?
Umbilical artery
Bladder, seminal gland and prostate in males
What is the origin of the uterine artery and what does it supply?
Internal iliac artery
Uterus
What is the origin of the gonadal arteries (ovarian or testicular) and what do they supply?
Abdominal aorta
Gonads (ovaries or testes)
What is the origin of the superior rectal artery and what does it supply?
Inferior mesenteric
Rectum
What is the origin of the middle and inferior rectal arteries and what do they supply?
Middle - internal iliac, medial rectum
Inferior - internal pudendal, distal rectum
What is the origin of the vaginal artery and what does it supply?
Uterine artery
Vagina
What is the origin of the internal pudendal artery and what does it supply?
Internal iliac artery
Main artery to the perineum
What is the origin of the obturator artery and what does it supply?
Internal iliac artery
Muscles in the thigh’s adductor compartment
What does the testicular artery pass through?
The inguinal canal