Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Anatomy > Pelvis Osteology, Ligaments and Muscles > Flashcards

Pelvis Osteology, Ligaments and Muscles Flashcards

1
Q

What are the 3 parts that make up the bony pelvis?

A

Hip bone
Sacrum
Coccyx

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

What are the parts of the hip bone?

A

Ischium
Ilium
Pubis

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

How are the 2 hip bones jointed anteriorly and posteriorly?

A

Anteriorly joined by pubic symphysis

Posteriorly joined by sarum

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

Where do the ilium, ischium and pubis fuse?

A

Acetabulum - where head of femur articulates with hip

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

What is the sacrum? What does it form?

A

Large bone located at the terminal part of the vertebral canal
Itt forms the posterior aspect of the pelvis

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

What is the sacrum formed from?

A

The fusion of the 5 sacral vertebrae

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

What are the surfaces of the sacrum?

A 
Base
Apex 
Auricular (lateral)
Anterior 
Posterior
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does the pelvic inlet mark? What is it defined by?

A

The boundary between the greater and lesser pelvis

It is defined by its edge, the pelvic brim

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

What are the borders of the pelvic inlet?

A

Anterior - pubic symphysis
Posterior - sacral promontory
Lateral - iliopectineal line

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

What does the pelvic inlet determine?

A

Determines the size and shape of the brith canal

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

What are the borders of the pelvic outlet?

A

Anterior - pubic arch
Posterior - tip of coccyx
Lateral - ischial tuberosities and inferior margin of sacrospinous ligament

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

Which is the false and which is the true pelvis?

A

True - lesser pelvis

False - greater pelvis

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

Where is the true pelvis and what does it contain?

A

Between the pelvic inlet and outlet

It contains the bladder, reproductive organs and the ischioanal fossae

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

Where is the false pelvis and what does it contain?

A

Above the pelvic inlet

It contains abdominal viscera eg. ileum and sigmoid colon

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

What shape is the pelvic inlet in men? What shape is it in women?

A

Heart shape

Oval shape in women

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

What is the difference in shape of a women’s plevis compared to a man’s?

A

Woman’s plevis wider and broader structure but flatter and lighter in weight

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

What has a greater angle in a woman’s pelvis than a man’s?

A

Sub-pubic arch

18
Q

What is the greater sciatic foramen?

A

Foramen within pelvis

Is a major channel for neurovascular structures to pass from the pelvis to the lower limb

19
Q

What are the superior, inferior, posteromedial and anterolateral boundaries of the greater sciatic foramen?

A

Superior - anterior sacroiliac ligament
Inferior - sacrospinous ligament
Posteromedial - sacrotuberous ligament
Anterolateral - greater sciatic notch

20
Q

What are 4 vessels that pass through the greater sciatic foramen?

A

Superior and inferior gluteal muscles
Internal pudenal vessels
Gluteal nerves
Nerves of the sacral plexus

21
Q

Where is the lesser sciatic foramen?

A

Between the sacrotuberous and sacrospinous ligaments

22
Q

What are the 3 boundaries of the lesser sciatic foramen?

A

Sacrotuberous ligament
Sacrospinous ligament
Lesser sciatic notch

23
Q

Where does the sacrospinous liagment run from? What does it form?

A

Sacrospinous ligament runs from the ischial spine to the sacrum
It forms the base of the greater and lesser sciatic foramen

24
Q

Where does the sacrotuberous ligament run from? What does it form?

A

Sacrotuberous ligament runs from the sacrum to the tuberosity of the ischium
It forms the boundary of the greater and lesser sciatic foramen

25
Q

Where does the inguinal ligament run from?

A

From the ASIS to the pubic tubercle

26
Q

Where does the sacroiliac ligament run?

A

From sacrum to ilium

27
Q

What is the obturator?

A

A thin sheet which closes the obturator foramen

28
Q

What is the linea termialis/ pubic brim made of?

What edge is it?

A 
Pubic crest 
Pecten pubis/ pectineal line
Arcuate line
Sacral ala 
Sacral promontory
It is the edge of the pelvic inlet
29
Q

Where is the conjugate measurement taken from? What is the average?

A

Between sacral promontory and the edge of the pubic symphysis
Average of 11cm

30
Q

Where is the transverse measurement taken from?

A

Between the ischial tuberositites

31
Q

Where is the oblique measurement taken from?

What is the average

A 
Sacroilial joint (SIJ) to iliopubic eminence
Average 12cm
32
Q

Where is the interspinous measurement taken from? Why is this significant?

A

Measured between the ischial spines

Significant as this is the narrowest part of the pelvic canal

33
Q

What is the pelvis floor made from? (3 things)

A

Lavator ani muscle
Coccygeus muscle
Fascia coverings of these muscles

34
Q

What are the levator ani?

A

3 paired muscles:
Pubococcygeus
Puborectalis
Iliococcygeus

35
Q

What is the innervation of levator ani muscles? What are the nerve roots?

A

Pudenal nerve

S2-4

36
Q

What are the actions of the levator ani muscles? (3 things)

A

Support the abdominopelvic viscera through their tonic contraction
Urinary and fecal continence
Provide resistance to increase in intrapelvic/ abdominal pressure during eg. coughing or lifting heavy objects

37
Q

What is the origin and insertion of the coccygeus muscle?

A

Origin - ischial spine

Insertion - lateral aspect of sacrum and coccyx

38
Q

What does the external anal sphincter blend with superiorly?

A

The puborectalis muscle of the pelvic floor

39
Q

Where is the anorectal ring?

A

At the junction of the rectum and anal canal

40
Q

What forms the anorectal ring?

A

Fusion of internal and external anal sphincters and the puborectalis muscle

Anatomy (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions