SHB Exam 2 > Pelvis > Flashcards

Pelvis Flashcards

(57 cards)

Study These Flashcards
1
Q

Which is the true pelvis and which is the false?

A
  • True: pelvis minor, inferior to superior pelvic aperture

- False: pelvis major, b/w the iliac fossae

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What ligament spans from iliac to sacral tuberosities?

A

Sacroiliac ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What vertebra sits above the sacrum?

A

L5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What ligament spans from L5 to iliac crest? (not on test)

A

Iliolumbar ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What ligament spans from the lateral sacrum/coccyx to the ischial tuberosity?

A

Sacrotuberous ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What ligament spans from the sacrum to the ischial spine?

A

Sacrospinous ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What hole is formed above the sacrotuberous ligament?

A

Greater sciatic foramen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What hole is formed b/w the sacrotuberous and sacrospinous ligaments?

A

Lesser sciatic foramen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Obturator internus m: OIIA?

A

O: Inner surface of obturator membrane
I: Greater trochanter of femur

I: Nerve to obturator internus
A: Laterally rotates and stabilizes hip

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Piriformis m: OIIA?

A

O: Anterior surface of sacrum
I: Greater trochanter of femur

I: Nerve to piriformis (ant rami S1, S2)
A: Laterally rotates and stabilizes hip, abducts thigh

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What 2 mm. make up the floor of the pelvic diaphragm?

A
  • Levator ani mm.

- Coccygeus m.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the 2 mm. of the levator ani mm?

A
  • Iliococcygeus m.

- Pubococcygeus m.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the pelvic fascia continuous with?

A

Transversalis fascia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Coccygeus m: OIIA?

A

O: Sacrospinous ligament
I: Coccyx

I: Ant rami S4, S5 (nerve to coccygeus?)
A: Supports pelvic viscera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the term for the white line in the pelvic fascia over the obturator foramen?
What attaches onto this line?

A
  • Arcus tendineus

- Levator ani mm.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What m. lies right next to the sacrospinous ligament?

A

Coccygeus m.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Levator ani mm: OIIA?

A

O: Tendineus arch, body of pubis, ischial spine
I: Perineal body, coccyx, anococcygeal raphe, walls of prostate or vagina, rectum, anal canal

I: Ventral rami of lower sacral nerves, perineal n.
A: Supports pelvic viscera, raises pelvic floor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the function of the urogenital diaphragm?

A

Provides a solid support for the pelvic viscera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the general supply of the anterior division of the internal iliac a? What about for the posterior division?

A
  • Ant: Supplies most of the blood to the pelvis

- Post: All are muscular branches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

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

A

“Um, obviously I value my really insanely good iced popsicle”

  • Umbilical a., gives branch to superior vesicle a.
  • Obturator a.
  • Inferior vesicle a.
  • Middle rectal a.
  • Inferior gluteal a.
  • Internal pudendal a.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What are the branches of the posterior division of the internal iliac artery?

A

“I love sugar”

  • Iliolumbar a.
  • Lateral sacral a.
  • Superior gluteal a.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the branch of the umbilical a?

A

Superior vesicle a.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

In females, the vaginal a. and uterine a. can replace which a.?

Study These Flashcards
A

Inferior vesicle a.

24
Q

What m. is the dividing line for the name of the superior and inferior gluteal aa., among others?

Study These Flashcards
A

Piriformis m.

25
What a. goes through the obturator foramen?
Obturator a., v., n.
26
What a. goes through the holes in the sacrum?
Lateral sacral a.
27
What does the sacral plexus span from?
L4-S5 - Ventral rami os S1-S4 - Receives L4-L5 from lumbosacral trunk
28
What m. does the sacral plexus rest on?
Piriformis m.
29
What is the ganglion impar?
Where the 2 pelvic sympathetic trunks converge (near tip of coccyx)
30
What are the nerve root contributions for the sciatic n?
L4, L5, S1, S2, S3
31
What are the nerve root contributions for the femoral n?
L2, L3, L4 (keeps the foot off the floor)
32
What are the nerve root contributions for the pudendal n?
S2, S3, S4 (keeps the junk off the floor)
33
What are the 2 portions of the sciatic n?
- Common peroneal portion | - Tibial portion
34
Where does the rectum end?
Ano-rectal junction
35
Where is the vesicouterine pouch??
B/w the bladder and uterus, females only
36
Where is the rectouterine pouch? | What's another name for it?
- B/w the rectum and uterus, female only | AKA Cul-de-sac of Douglas
37
What is the rectal ampulla?
Terminal dilated part of rectum
38
Where is the rectovesicle pouch?
B/w rectum and bladder, males only
39
What marks the transition from the rectum to the anal canal, caudal to the ano-rectal junction?
Pectinate line
40
What sensation is above and below the pectinate line? | What is the pattern of lymph drainage above and below the line?
- GVA above (deeper sensation). Lymph drainage is internal | - SVA below (sharp, localized). Lymph drainage superficial
41
What aa. supply the rectum?
- Superior rectal a. (upper 2/3++) - Middle rectal a. (lower 1/3, muscular) - Inferior rectal a. (anasotmoses w/sup rectal in anal columns)
42
Where did the superior rectal a. branch from?
IMA
43
Where did the middle rectal a. branch from?
Internal iliac a., anterior division
44
Where did the inferior rectal a. branch from?
Internal pudendal a.
45
Which circuits are the rectal vv. off of?
Superior rectal v: portal system (liver, so cirrhosis can lead to hemorrhoids) Middle and inferior rectal vv: somatic circuits
46
Which anal sphincter is voluntary vs. involuntary?
Internal: involuntary External: voluntary
47
What m. is in the wall of the bladder?
Detrusor m.
48
What aa. supply the bladder?
- Superior vesicle a. (ant division; off umbilical a.) | - Inferior vesicle a. (ant division; sometimes replaced by vaginal and uterine aa. in females)
49
What is the name of the smooth triangular region of the bladder?
Trigone
50
Why are females more prone to UTI?
Urethra is only ~1.5" long
51
What are the main parts of the male urethra?
1. Prostatic urethra 2. Membranous urethra 3. Spongy urethra
52
Where do the ductus deferens and seminal vesicles merge to enter the prostatic urethra?
Ejaculator duct
53
What is the prostatic utricle?
Small, epithelium-lined diverticulum in the prostatic urethra - homologue of female vagina
54
The umbilical a. gives a branch to what a.?
Superior vesicle a.
55
Piriformis m. comes out of which foramen? | Obturator internus m. comes out of which foramen?
- Greater sciatic foramen | - Lesser sciatic foramen
56
Where does the sciatic n. exit the pelvis?
Greater sciatic foramen, above the sacrospinous ligament, and goes out below the piriformis m.
57
What is the course of the pudendal n. in the pelvis?
Goes in greater sciatic foramen and out the lesser sciatic foramen, coursing over the sacrospinous ligament. Then goes through alcock's (pudendal) canal.
SHB Exam 2
flashcards
Decks in class (17)
# Cards
Brainscape helps you reach your goals faster, through stronger study habits.
© 2026 Bold Learning Solutions. Terms and Conditions