Pelvic Vasculature and Genitalia Flashcards Preview

Anatomy and Radiology Test 2 > Pelvic Vasculature and Genitalia > Flashcards

Flashcards in Pelvic Vasculature and Genitalia Deck (92)
1

Abdominal aorta bifurcates where into what

L4
Right and left common iliac artery

2

Common iliac bifurcates where into what

Pelvic brim
Internal and external iliac

3

External iliac runs

Under inguinal ligament to become femoral artery

4

Internal iliac runs

Into the true pelvis and becomes posterior and anterior

5

Anterior branches of internal iliac artery

Umbilical artery
Obturator artery
Inferior gluteal
Internal pudendal
Visceral
All parietal but visceral

6

Posterior branches of internal iliac artery

Iliolumbar
Lateral sacral
Superior gluteal
All parietal

7

Umbilical artery

Becomes occluded in adult as medial umbilical ligament
May give rise to superior vesicle artery and uterine artery

8

Obturator artery runs and supplies

Leaves with obturator nerve and vein through obturator canal
Supplies iliacus muscle and other in lower limb

9

Inferior gluteal artery runs

Terminal branch
Passes through greater sciatic foramen

10

Internal pudendal artery supplies

Main artery of perineum

11

Superior vesicle artery supplies

Supplies superior part of bladder

12

Inferior vesicle artery supplies

Supplies inferior part of bladder, prostate, and seminal vesicles

13

Uterine artery runs, supplies

Cross ureter and passes with cardinal ligament (transverse cervical) to reach the uterus
Supplies uterus and anastomoses with overian artery

14

Vaginal artery supplies

Superior region of vagina

15

Middle rectal artery supplies

Supplies rectum
Anastomoses with superior and inferior rectal

16

Iliolumbar artery supplies

Iliacus and psoas muscles

17

Lateral sacral artery supplies

Spinal branches entering anterior sacral foramina

18

Superior gluteal artery runs

Between lumbosacral trunk and S1
Exits pelvis through greater foramen

19

Each pelvic organ in true pelvis surrounded by

Plexus of veins that drain into internal iliac vein to reach IVC

20

Exception to plexuses of true pelvis

Superior mesenteric vein follower superior rectal artery to hepatic portal vein

21

Pelvic venous plexus clinical consideration

Easy spread of disease from pelvis to vertebral column
Pevlic communicate with external and internal vertebral plexus

22

Sacral plexus exits through and innervates

L4-S4
Anterior sacral foramen
Pelvis, perineum, posterior thigh, most of lower leg, all of foot

23

Lumbosacral trunk and where it runs

L4/5 as they run over pelvic brim into true pelvis

24

Pudendal nerve arises from and innervates

Arises from S2-S4
Perineum

25

Coccygeal plexus innervates

Area around coccyx and anus

26

Where is aortic plexus renamed and to what

L4/5
Superior hypogastric plexus

27

Where is superior hypogastric plexus renamed and to what

True pelvis
Inferior hypogastric plexus (pelvic plexuses)

28

Below L2, there are only ______ communicans

Grey rami communcans

29

Sacral splanchnics

Preganglionic sympathetic fibers that join hypogastric plexus for distribution

30

Pevlic splanchnics and where they exit into true pevlis

Preganglionic parasympathetic fibers from S2-S4
Descend with cauda equina - anterior sacral foramen
Also join hypogastric plexi

31

Organs of pelvis initally drained by

Visceral nodes

32

Parietal nodes of pelvis and where they go

Internal iliac, external iliac, common iliac
To aortic nodes to cisterna chyli to thoracic duct

33

Genetalia located in the

Urogenital triangle

34

Bucks's fascia

Deep connective tissue of the penis

35

Tuncia albugina

Tough CT capsule of penis

36

Lateral masses of penis

Corpus cavernosa

37

Median mass of penis

Corpus spongiosum

38

Spongy urethra

Erectile tissue completely surround this portion of urethra

39

Blood supply of penis

Internal pudendal artery

40

Veins of peins relative to Bucks fascia

Superficial dorsal penile vein - drains skin
Deep dorsal penile vein - drains erectile tissue

41

Glans penis covered by

Prepuce

42

Navicular fossa

Dilated end of the urethra in glans region

43

Dorsal penile nerve innervates

Skin of the glans

44

Crus of the penis (Crus of corpus cavernosus) attach to

Attach to ischiopubic ramus

45

Bulb of penis

Proximal end of corpus spongiosum

46

Crus of penis covered by

Ischocavernosus muscles

47

Bulb of penis covered by

Bulbospongiosus muscle

48

Main sensory neve to penis/clitoris and what it is a terminal branch of

Dorsal nerve of the penis/clitoris - pudendal nerve

49

Erection involves coordination of

Somatosensory and parasympathetic innervation

50

Parasympathetic during erection

vasodilation of arteries allowing blood to fill cavernous spaces

51

Cutaneous innervation erection

Glans - helps maintain

52

Somatomotor innervaiton erection

Compresses veins to prevent blood from leaving tissue

53

Ejaculation involves coordination of

Somatomotor and sympathetic

54

Sympathetic ejaculation

Casues seminal emission

55

Contractions of what muslce also occur during ejaculation

Bulbospongiosus (somatic)

56

Vulva function

Sensory
Direct urine flow
Prevent entry of foreign material

57

Mons pubis

Rounded fatty eminence anterior to pubic symphysis

58

Labia majora

Two raised skin folds covered with hair

59

Labia minora

Hairless folds just inside majora

60

Prepuce

Encloses glands clitoris

61

Folds of labia minor

Upper - prepuce
Lower - frenulum of the flitoris

62

Posterior merging of the labia minora is

Forchette or posterior frenulum of labia minora

63

Vestibule of vagina

Space just inside labia minora
Where vaginal orifice and external urethral orifice open

64

Surgical perineum boundaries

Posterior - border of anus
Lateral - medial thigh creases
Anterior - vagina/root of scrotum

65

Episiotomy

Incision of perineum and posterior vaginal wall to enlarge opening

66

Glans clitoris

Spongy erectile tissue where labia minora come together

67

Skin overlying clitoris innervated by

Dorsla nerve of clitoris from pudendal nerve

68

Body of clitoris

Supports glans and comprised of cavernous ereticle tissue

69

Crura of clitoris

Cavernous erectile tissue that is continuous with clitoris
Covered by ischiocavernosus muscle

70

Vestibular bulbs

Lie in wall of vestibule of vagina
Covered by bulbospongiosus muscle

71

Vestibular glands

Lie below bulbs

72

Testis anterior and lateral covered by

Tunica vaginalis

73

Visceral testis associated with

Tunical albuginea

74

Tunica albuginea

Dense fibrous layer deep to visceral tunica

75

Septa

Extension of tunia albuginea that connect to mediastinum testis
Divides testis into lobules

76

Mediastinumtestis

Knot of connective tissue on posterior aspect of testis

77

Rete testis

Spaces within mediastinum testis

78

Seminiferous tubules

Produce spermatozoa

79

Straight tubules

Connect semiferous tubulus with rete testis

80

Efferent ductules

Connect rete testis to head of epididymis

81

Epididymis

Divided into head body and tail and continuous with ductus deferens

82

Ductus deferens

Passes up posterior into spermatic cord

83

Testicular artery arises from

Abdominal aorta

84

Pampiniform plexus of veins

Carry cooler blood around testicular
Returns to IVC

85

Lympathic drainge of testes

FOllows venous return to aortic visceral nodes in abdomen

86

Autonomic plexus of the abdomen

Follow blood vessels to innervate testes

87

testicular torsion

Spermatic cord twists and causes ischemia to testes

88

Sueprficial dartos muscle

COntracts and wrinkles skin of tests to pull testes closer to the body

89

External spermatic fascia

Continuation of aponeurosis of external abdominal oblique

90

Cremasteric fascia

Continuation of internal abdominal oblique

91

Tunica vaginalis

Peritoneum that descended with testis
parietal portion and visceral portion

92

Blood supply and innervation of scrotum

Anterior and posterior scrotal arteries from internal and external pudendal arteries