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human anatomy > Pelvis Part 2 > Flashcards

Pelvis Part 2 Flashcards

1
Q

male pelivs

A

smaller angle, thick and heavy bones, deeper

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2
Q

female pelvis

A

wider angle, thinner bones, wide and shallow set

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3
Q

pelvic diaphragm

A

-floor of pelvic cavity
-interrupted by the urogenital hiatus
-consists of levator ani and coccygeus

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4
Q

urogenital hiatus

A

allows passage of the urethra and vagina in women and membranous urethra in males

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5
Q

leavtor ani

A

-iliococcygeus, pubococcygeus, puborectalis
-supports and maintains position of pelvic organs

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6
Q

coccygeus

A

supports pelvic organs

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7
Q

puborectalis

A

forms sling around rectus at anorectal junction, keeps poop in

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8
Q

lateral pelvic wall

A

obturator internus and obturator membrane, inserts on femur

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9
Q

posterior pelvic wall

A

piriformis and sacral pelvis, femur

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10
Q

endopelvic fascia

A

consists of parietal fascia and visceral fascia

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11
Q

parietal fascia

A

covers the surface of the sacrum, coccyx, and muscles of the pelvic wall and floor

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12
Q

visceral fascia

A

uterosacral ligament, cardinal ligament

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13
Q

cardinal ligament

A

cervix to fascia of piriformis

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14
Q

uterosacral ligament

A

uterus to sacrum

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15
Q

pelvic spaces

A

parietal peritoneum from abdominal cavity extends into pelvic cavity and covers superior portions of pelvic viscera and creates recesses (pouches)

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16
Q

pouches

A

includes rectovesical pouch, vesicouterine pouch, and rectouterine pouch

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17
Q

rectovesical pouch

A

male, space between bladder and rectum

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18
Q

vesicouterine pouch

A

female, space between bladder and uterus

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19
Q

rectouterine pouch

A

female, space between rectum and uterus

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20
Q

internal iliac arteries

A

-supply pelvis and perineal structures
-divides into anterior and posterior divisions

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21
Q

anterior division of internal iliac artery

A

**viscera and organs
-obturator arteries
-middle rectal arteries
-uterine and vaginal arteries
-inferior vesical arteries
-superior vesical arteries
-internal pudendal arteries

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22
Q

posterior division of internal iliac artery

A

**think muscles
-iliolumbar arteries
-lateral sacral arteries
-superior gluteal arteries
-inferior gluteal arteries

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23
Q

venous drainage

A

series of venous plexuses surrounds pelvis viscera and generally drain into internal iliac vveins

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24
Q

gonads

A

drained by gonadal veins, right drains directly into inferior vena cava and left drains into left renal vein

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25
Q

pelvic somatic innervation

A

-skeletal muscle and skin of the pelvis diaphragm, pelvic wall, and perineum are innervated by sacral plexus

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26
Q

sacral plexus

A

-anterior rami S1-S4
-receives contributions from lumbar spinal nerves via the lumbosacral trunk

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27
Q

two major branches off the sacral plexus

A

pudendal nerve and nerves to levator ani and coccygeus

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28
Q

pudendal nerve

A

S2-S4, voluntary motor for external anal and urethral sphincters, sensory of genitalia

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29
Q

nerves to levator ani and coccygeus

A

S3-S4, motor for pelvic diaphragm

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30
Q

pelvic autonomic innervation

A

smooth muscle and perineal vasculature innervated by sympathetic and parasympathetic autonomic plexuses

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31
Q

superior hypogastric plexus

A

continues as right and left hypogastric nerves that synapse w postgang fibers associated within inferior hypogastric plexus

32
Q

how do postganglionic fibers travel

A

travel along arteries to pelvic and perineal viscera

33
Q

what does superior hypogastric plexus do

A

-close sphincters
-stimulates orgasm and ejaculation
-opens sphincters
-bladder emptying

34
Q

pelvic viscera

A

portions of digestive, urinary, and reproductive systems that are contained within the lesser pelvis

35
Q

rectum

A

-rectosigmoidal junction
-lacks teniae coli and omental appendages
- 3 transverse rectal folds
-terminal part bends sharply posterior at anorectal flexure (become anal canal)

36
Q

what keeps rectum in constant state of contraction

A

puborectalis, only relaxes while pooping

37
Q

rectum supplied by

A

superior rectal arteries of inferior mesenteric, middle rectal arteries of anterior division of internal iliac

38
Q

rectum drained by

A

rectal venous plexus and superior rectal vein, middle rectal vein and inferior rectal vein

39
Q

ureters

A

-retroperitoneal muscular tubes connecting kidneys to urinary bladder
-arise from renal pelvis within kidney hilum
-pierces that lateral aspect of bladder wall in an oblique inferomedial angle

40
Q

autonomic innervation of ureters

A

-renal, aortic, superior and inferior hypogastric plexuses

41
Q

sesnory fibers from ureters enter spinal cord

A

-at T11-T12
-ureteric pain refer to dermatomes

42
Q

urinary bladder

A

-muscular reservoir for urine
-apex, fundus, neck, and body
-trigone
-detrusor muscle
-median umbilical ligament

43
Q

trigone

A

formed by ureters and internal urethral arteries

44
Q

detrusor muscle

A

-contracts bladder during urination (smooth muscle, autonomic innervation)
-contributes to internal urethral sphincter

45
Q

median umbilical ligament

A

supports urinary bladder

46
Q

urinary bladder supplied by

A

superior and inferior vesical arteries of internal iliac arteries

47
Q

urinary bladder drained by

A

superior and inferior vesical veins

48
Q

urethra

A

-begins at internal urethral orifice and ends at external urethral orifice
-drains the bladder

49
Q

female urethra

A

-short
-travels through deep perineal pouch to the vestibule of the vagina

50
Q

paraurethral glands

A

flank the urethra and aid in lubricating the vestibule

51
Q

male urethra

A

-long
-divided inot intramural, prosthetic, intermediate, and spongy portions
-passes through prostate, deep perineal pouch, and corpus spongiosum

52
Q

intramural urethra

A

passes through wall of urinary bladder before entering prostate

53
Q

prosthetic urethra

A

receives secretions from vas deferens and seminal and prostate glands

54
Q

intermediate urethra

A

-surrounded by external urethral sphincter
-flanked by bulbourethral glands that empty secretions into spongy urethra

55
Q

spongy urethra

A

expands within glands to form navicular fossa

56
Q

fallopian tubes

A

-transports ovum from ovary to uterus
-consist of infundibulum with fimbriae, ampulla, isthmus, and intramural segment

57
Q

ampulla

A

where fertilization occurs

58
Q

isthmus

A

narrowed region of fallopian tube

59
Q

intramural segment of fallopian tube

A

portion contained within the wall of the uterus

60
Q

uterus

A

-involved in implantation, gestation, menstruation, and labor
-fundus, cornu, body, and cervix

61
Q

curnu

A

uterine horn

62
Q

cervix

A

protrudes into vagina and includes internal os, cervical canal, and external os

63
Q

vagina

A

-between cervix to vestibule of vagina
-provides passageway for blood and mucosal tissue during menstruation
-where penis enters
-passage for childbirth

64
Q

fornix

A

protrusion of cervix into vagina

65
Q

muscles that compress vagina

A

-pubovaginalis
-external urethral sphincter
-urethrovaginal sphincter
-bulbospongiosus

66
Q

cortex of ovary

A

ovarian follicles each containing an oocyte surrounded by a single layer of follicular cells

67
Q

broad ligament for uterus

A

-forms pelvic wall attachment
-mesometrium(uterine body), mesovarium(ovary), mesosalpinx(fallopian tube)

68
Q

suspensory ligament

A

-continuous with broad ligament
-supports position of ovaries
-draped over ovarium arteries and veins

69
Q

ligament of the ovary

A

attaches ovary to uterus

70
Q

round ligament of uterus

A

-previously the gubernaculum
-extends anterolaterally from uterus
-travels through inguinal canal, and inserts into labia majora

71
Q

ovaries, fallopian tubes, and uterus supplied by

A

uterine and ovarian arteries of anterior division of internal iliac arteries

72
Q

superior vagina supplied by

A

vaginal arteries

73
Q

inferior vagina supplied by

A

branches off internal pudendal arteries

74
Q

ovary and vagina structures drained by

A

uterine venous plexus which drains into uterine veins of the iliac veins

75
Q

inferior portion of vagina somatic innervation

A

deep perineal nerve of the pudendal nerve

human anatomy (13 decks)

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