Ach: Lower Abdominal Cavity II Flashcards Preview

GI- Week 3 > Ach: Lower Abdominal Cavity II > Flashcards

Flashcards in Ach: Lower Abdominal Cavity II Deck (59):
1

What does the ductus deferens emerge from?

deep inguinal ring

2

What is the dilated terminal end of the ductus deferens?

ampulla

3

What forms the ejaculatory duct?

duct of the seminal vesicle with the ampulla of the ductus deferens

4

Where are the seminal vesicles located?

Base of the bladder lateral to the ampulla of the DD

5

What do the seminal vesicles do?

add fructose and alkaline fluid to semen

6

Where is the ejaculatory duct located?

It descends through the posterior part of the prostate to enter hte posterior wall of hte prostatic urethra.

7

What is the prostate and where is it located?

A gland that is inferior to the neck of the bladder and surrounds the prostatic urethra.

8

What does the prostate rest on?

UG diaphragm

9

What does the prostate secrete? Why is this important?

fluid, milky, alkaline fluid that neutralizes acidity of the vaginal tract and liquifies semen

Increases lifespan of sperm and improves chances of pregnancy

10

What does the prostate gland lie w/in and what is it surrounded by?

Sheath

dense plexus of veins

11

How does prostate cancer spread?

Metastasis of cancer cells occurs via connections to valveless vertebral venous plexus or to internal iliac vines.

12

What is the MC site of metastatic spread from the prostate?

bones, lungs, liver

13

What prevents urination during ejaculation?

Internal urethral sphincter contracts under sympathetic control

14

What are the 4 zones of hte prostate gland?

central
transitional (median)
peripheral (posterior)
anteiror fibromuscular

15

What zones are most often involved in benign hypertrophy of the prostate (BPH)?

Periurethral and transitional

16

BPH can lead to...

difficult but frequent urination, nocturia, decreased or intermittent force of stream, sensation of incomplete emptying of the bladder

17

What part of the prostate has the highest incidence of prostatic carcinoma?

Peripheral zone (easily palpated during digital rectal exam)

18

What is indicative of prostatic disease?

elevated PSA (doesn't give precise information)

19

What is the MC procedure used to treat prostate cancer?

TURP

20

What are the three parts of the male urethra?

1. prostatic (in the prostate)
2. membranous (in the UG diaphragm)
3. penile/spongy (penis)

21

Prostatic part of the urethra is responsible for...

involuntary continence

22

Membranous part of the urethra is responsible for...

voluntary continence (rigid muscular attachments)

23

Penile part of the urethra is...

distensible

24

What are the divisions of the uterus?

Fundus
Body
Cervix

25

What part of the uterus communicates with the uterine tubes?

Uterine body

26

What are the three parts of the cervix?

Internal OS>
cervical canal>
external OS

27

What is the difference between endometrium, myometrium and perimetrium?

endometrium- shed cyclically, menstruation

myometrium- thick, smooth muscle

perimetrium- peritoneum, CT

28

Anteversion of the uterus means...

the axis of hte cervix forms a 90 degree angle w/ the axis of the vagina

29

Anteflexion of the uterus means...

adult uterus is bent forward on itself at about hte level of hte internal os to form a 170 degree angle

30

When the bladder is full, the uterus is...

retroverted (inclined posteriorly)

31

What is the broad ligaments?

layers of peritoneum

32

What does the broad ligament enclose?

body of the uterus

33

What do you have to be cautious of during a hysterectomy?

Injuring the ureter. The ureter lies UNDER the uterine artery.

34

What occupies the mesosalpinx or the upper boarder of the broad ligament?

Uterine/fallopian tubes

35

What does the uterine tube do?

connects uterine cavity to peritoneal cavity

36

What are the 4 parts of the uterine tube?

1. Uterine part
2. Isthmus
3. ampulla
4. infundibulum containing fimbriae

37

Where does fertilization usually occur?

ampulla

38

What is an ectopic pregnancy?

When implantation occurs outside the uterus and in the wall of the uterine tube

39

What is a uterine tubal ligation?

tying off and cutting of the uterine tube preventing the fertilization of the ovum by motile sperm

40

What attaches the ovary to the back of the broad ligament?

Mesovarium

41

What is the suspensory ligament?

transmits vessels and lymphatics to the ovary from the abdomen

42

What is the round ligament of the ovary?

Attaches ovary to uterus

remnant of the upper part of the gubernaculum.

43

What is hte ovary covered by?

germinal epithelium that is continuous with the mesovarium

44

What are the fornices of the vaginal lumen?

anterior, posterior, right and left lateral

45

How is the vagina usually located?

posterosuperiorly at a 40-60 degree angle from the horizontal

46

What is culdocentesis?

When a long thin needle is inserted through the posterior fornix of hte vagina and into the rectouterine pouch to determine the presence of fluid. We do ultrasound now instead!

47

What main vessel serves the pelvis?

internal iliac artery

48

What are the branches of the anterior division of the common iliac artery?

umbilical

obturator

uterine
vaginal

inferior vesical (M)

middle rectal

internal pudendal

inferior gluteal

49

What are the posterior branches of hte internal iliac artery?

superior gluteal

Lateral sacral
iliolumbar

50

What is the largest branch that passes through the greater sciatic foramen between L4/5-S1?

Superior Gluteal Artery

51

What forms the pectinate line? What does the pectinate line indicate?

Anal valves

division between gut derived from hindgut vs proctodeum

52

What is hte difference in venous and lymphatic drainage above and below the pectinate line?

above- superior rectal veins--> portal system

below- middle and inferior rectal veins--> systemic circulation

53

What are crypts?

shallow depressions in the endothelium where anal glands open

54

What are anal columns?

folds of endothelium overlying superior rectal veins

55

What is an anorectal ring?

site where hte rectum turns back to become the anal canal

56

What are the transverse rectal folds?

folds of muscular layers nad mucosa (not true valves, but they do slow the movement of feces through the rectum)

57

What forms the internal anal sphincter?

circular longitudinal layers of gut

innervated by autonomic fibers

58

WHat forms the external anal sphincter?

thickened lowest part of hte pelvic diaphragm. It has subcutaneous, superficiala nd deep parrts.

59

What is the nerve supply to the external anal sphincter?

rectal branches of pudendal nerve