Blackcloud Body Wall and Thorax p.65-78 Flashcards Preview

Anatomy III > Blackcloud Body Wall and Thorax p.65-78 > Flashcards

Flashcards in Blackcloud Body Wall and Thorax p.65-78 Deck (115):
1

only structures that are ____ are dependable in location

retroperitoneal

2

the pancreas is secondarily retroperitoneal except ____, which is intraperitoneal, within the splenorenal ligament

the tail

3

stomach, liver, pancreas, duodenum proximal to bile duct

foregut derivatives

4

distal duodenum, jejunum, ileum, cecum, appendix, ascending and tranverse (proximal 2/3) colon

midgut derivatives

5

midgut derivatives are supplied by

SMA (origin L1)

6

tranverse colon (distal 1/3), descending and sigmoid colon, rectum, superior canal, epithelium of bladder and urethra

hindgut derivatives

7

hindgut derivatives supplied by

IMA (origin L3)

8

an ileal diverticulum (yolk sac persistence) in 2% of population in antimesenteric border of iluem

Meckel's diverticulum

9

a primarily retroperitoneal structure is ____ to a secondarily retroperitoneal structure

always posterior

10

primarily retroperitoneal organs drain

directly into IVC

11

formed by end-to-end anastomoses of ileocolic, right colic, mid colic, left colic, and sigmoidal arteries

marginal artery

12

closely related to pigmented skin of scrotum

dartos fascia

13

responsible for rugose appearance of scrotum

Fat-free fascia layer including dartos muscle

14

posterior scrotal branches of perineal, anterior scrotal branches of deep external pudendal

supply to scrotum

15

perineal artery is branch of

internal pudendal

16

deep external pudenal artery is branch of

femoral

17

cremasteric artery is branch of

inferior epigastric

18

drains scrotum

scrotal veins

19

lymphatics in scrotum

superficial inguinal lymph nodes

20

genital branches, anterior and posterior scrotal nerves, perineal branches

innervation to scrotum

21

anterior scrotal nerves are branches of

Ilio-inguinal nerve (L1)

22

posterior scrotal nerves are branches of

perineal (from pudendal, S2-S4)

23

genital nerve branch is branch of

genitofemoral nerve (L1, L2)

24

perineal nerve branch is branch of

posterior cutaneous nerve of thigh (S2-S3)

25

internal spermatic fascia origin

transversalis fascia

26

cremasteric fascia origin

internal oblique fascia

27

cremaster muscle origin

internal oblique muscle

28

external spermatic fascia origin

external oblique fascia

29

formed within testes, stored in epididymis, external to abdomen

sperm

30

runs through inguinal canal to enter abdominal and pelvic cavities

ductus deferens

31

where sperm enter the urethra

prostate gland

32

the surface of the testis is smooth because

covered by visceral layer of tunica vaginalis

33

epididymis consists of head, body and tail, all continuous with

ductus deferens

34

inguinal canal contents in males

spermatic cord

35

inguinal canal contents in females

round ligament

36

apo of external obliques, fibers from internal obliques

anterior wall of inguinal canal

37

transversalis fascia, conjoined tendon from internal oblique and transversus abdominis apo

posterior wall of inguinal canal

38

inguinal ligament and lacunar ligament (attaches inguinal ligament to pectineaus muscle)

floor of inguinal canal

39

arching fibers from internal oblique and transversus muscles

roof of inguinal canal

40

internal entrance to inguinal canal, evagination of transversalis fascia

deep (internal) ring

41

exit from inguinal canal, slit-like opening between diagonal fibers of aponeurosis of external oblique

superficial (external) ring

42

inguinal canal, femoral ring, umbilicus and linea alba

regions prone to hernias

43

most common hernias

Inguinal (14% of men, 2% of women)

44

hernias exclusive to women

femoral and umbilical

45

necrosis of bowel and fecal obstruction

if bowel is trapped in hernia sac

46

section of bowel enters spermatic cord, passes through inguinal canal, and can enter scrotum

indirect hernia

47

result of patent process vaginalis in young males

indirect hernia

48

gut pushes through abdominal wall into media 1/3 of inguinal canal, does not enter spermatic tube or scrotum

direct hernia

49

occurs in males over 40

direct hernia

50

in all cases, the hernia sac is covered in

parietal peritoneum

51

bounded by inferior epigastric vessels, rectus abdominus, and inguinal ligament

inguinal (Hesselbach's triangle)

52

inguinal canal contents in both sexes

blood and lympathic vessels, ilio-inguinal nerve

53

internal pudendal artery and vein, pudendal nerve enter perineum via

lesser sciatic foramen

54

internal pudendal artery and vein, pudendal nerve travel in ____ with ____.

pudendal canal, fascia of obturator internus

55

space formed by sacrotuberous ligament (vertical), sacrospinous ligament (horizantal) between sacrum and ishial spine

lesser sciatic foramen

56

originates in sacral plexus, ventral rami of S2-S4, exits pelvis via greater sciatic foramen, enters perineum via lesser sciatic foramen

pudendal nerve

57

inferior rectal, deep and superficial perineal, dorsal nerve of penis/clitoris, posterior scrotal/labial nerves

branches of pudendal

58

innervate skin and external anal sphincter

inferior rectal nerves

59

innervate muscles of the perineum, continues as dorsal nerve of penis/clitoris

deep perineal nerve

60

continues into posterior scrotal/labial nerves (to skin)

superficial perineal nerves

61

folds of skin extending from anterior to posterior boundaries of urogenital triangle. Has hair laterally.

labia majora

62

thin folds of hairless skin media to labia majora

labia minora

63

visible erectile body at anterior end of labia minor

glans of clitoris

64

covers the remainder of clitoris

prepuce

65

medial to labia minor, contains vaginal orifice and external urethral orifice

vaginal vestibule

66

formed by buld and crura of penis within urogential triangle

root of penis

67

expansion at head of penis

glans (head)

68

portion of penis between root and glans

body

69

ridge that distinguishes body from glans

corona of the glans

70

double layer of skin covering the glans

prepuce (foreskin)

71

labia majora homolog

scrotum

72

labia minora homolog

spongy urethra

73

external pudendal branches of femoral, labial branches of internal pudendal vessels

blood to labia majora

74

perineal branches of posterior femoral cutaneous nerve

nerves to labia majora and minora

75

labial vessels and dorsal vessels of clitoris (terminal branches of pudendeal)

blood to labia minora

76

ischium and inferior part of obturator internus (covered in fascia)

lateral border of ischioanal fossa

77

external anal sphincter and levator ani

medial border of ischioanal foss

78

sacrotuberous ligament and gluteus maximus

posterior border of ischioanal fossa

79

pubic bone

anterior border of ischioanal fossa

80

inferior rectal artery (from internal pudendal), inferor rectal nerve (from pudendal), and via pudendal canal: internal pudendal artery (from internal iliac artery) and pudendal nerve. And FAT.

contents of ischioanal fossa

81

large voluntary sphincter forming broad band on either side of inferior 2/3 of anal canal

external anal sphincter

82

nerve to external anal sphincter

S4 through inferior rectal nerve

83

fiber direction of external anal sphincter

circumferential around anal canal, perpendicular to levator ani

84

potential space between membranous layer of subcutaneous tissue and perineal membrane, bound laterally by ischiopubic rami

superficial perineal pouch

85

deep membranous layer of perineal fascia

colles fascia

86

colles fascia and perineal membrane

boundaries of superficial perineal pouch

87

bulbs and crura and surrounding skeletal muscle, superficial tranverse perineal and bulbospingiosis muscle

contents of superficial perineal pouch, both sexes

88

clitoris, greater vestibular glands

contents of superficial perineal pouch, females only

89

urethra (proximal part of spongy urethra)

contents of superficial perineal pounch, males only

90

where male erectile tissue is found

crura and bulb of penis

91

where female erectile tissue is found

clitoris and corpora cavernosa

92

vessels and nerves of superficial perineal pouch

deep perineal vessels and nerves

93

veins draining penis (corpora cavernosa)

venous plexus that becomes deep dorsal vein of penis, enters prostatic venous plexus

94

veins draining penis (superficial coverings)

superficial dorsal vein, ends in superficial external pudendal vein

95

veins draining clitoris

deep dorsal veins of clitoris, to vesical plexus

96

Point and Shoot

parasympathetic erections, sympathetic ejaculation

97

sympathetic innervation of trigon and internal urethral sphincter prevent

semen from entering the bladder

98

perineal membrane, inferior fascia of levator ani, fascia of obturator internus

boundaries of deep perineal pouch

99

urethra (just intermediate portion in males), deep transverse perineal muscles, external urethral sphincter, anterior recess of ischioanal foassa, vessels and nerves to clitoris/penis

contents of deep perineal pouch

100

deep perineal contents, male specific

bulbourethral gland

101

pierced by urethra, vagina, and branches of the pudendal neurovascular bundle

perineal membrane

102

rupture of intermediate urethra will result in accumulation in

deep perineal pouch, leaks from there through urogenital hiatus in levator ani

103

presynaptic autonomic neurons supplying perineum are located

spinal cord. Upper lumbar (sympathetic) and sacral (parasympathetic)

104

located within deep perineal pouch, but ducts empty into spongy urethra (superficial pouch)

bulbourethral gland

105

located on each side of vestibule, posterolateral to vaginal orifice, secrete mucous into the vestibule during arousal

greater vestibular glands

106

lymphatic drainage of the perineum is almost entirely to

nodes in the inguinal region

107

divides pelvis into false (greater) and true (lesser)

pelvic brim

108

contains some abdominal viscera, such as sigmoid colon and some loops of ileum

false pelvis

109

contains pelvic viscera: bladder and reproductive organs

true pelvis

110

covered over much of their surface by parietal peritoneum, and considered intraperotineal because they have mesenteries

uterus, uterine tubes and ovaries

111

pouch where parietal perotineum reflects from uterus onto bladder

vesicoutertine pouch

112

pouch where parietal perotineum reflects from uterus onto rectum

recouteruine pouch

113

most of the vagina and cervix of the uterus are

subperitoneal

114

internal male genitalia are

subperitoneal

115

pouch where parietal perotineum reflects from bladder onto rectum (males)

rectovesical pouch