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Anatomy Finals > Pelvis > Flashcards

Pelvis Flashcards

1
Q

region of the trunk below the abdomen

A

Pelvis

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2
Q

Functions of the pelvis

A

a. transmit the weightt of the body from the vertebral column to the femurs
b. supports and protects the pelvic viscera
c. provides attachment for trunk and lower limb muscles

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3
Q

Two parts of the pelvis

A

false and true pelvis

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4
Q

Posterior border of the false pelvis

A

Lumbar vertebrae

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5
Q

Lateral border of the false pelvis

A

Ilias fossae and illiacus muscle

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6
Q

Anterior border of the false pelvis

A

Lower part of the anterior abdominal wall

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7
Q

Bowl-shaped structure that contains and protects the lower parts of the pelvic viscera

A

True pelvis

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8
Q

The three parts of the true pelvis

A

Inlet, outlet and cavity

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9
Q

Bounded posteriorly by the sacral promontory, laterally by the iliopectineal lines and anteriorly by the symphysis pubis

A

Pelvic inlet

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10
Q

Bounded posteriorly by coccyx, laterally by ischial tuberosities and anteriorly by the pubic arch

A

pelvic outlet

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11
Q

Between the inlet and outlet and is a short curved canal with a shallow anterior wall and much deeper posterior wall

A

Pelvic cavity

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12
Q

Circular opening between the abdominal cavity and the pelvic cavity

A

Pelvic inlet

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13
Q

The three parts of the linea terminalis

A

Arcuate lines, pectin pbis and pubic crest

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14
Q

Forms the brim of the true pelvis

A

Pelvic inlet

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15
Q

Another term for the pelvic inlet

A

superior strait

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16
Q

The three diameters found in the anteroposterior Pelvic

A

Diagonal conjugate, true conjugate and obstetric conjugate

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17
Q

Distance bettween the lower border of the symphysis pubis to the midpoint of sacral promontory

A

diagonal conjugate

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18
Q

Measurement of the diagonal conjugate

A

12 cm

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19
Q

This is the only conjugate that can be measured clinically

A

Diagonal conjugate

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20
Q

Distance between the upper margin of the symphysis pubis to the midpoint of the sacral promontory

A

True or anatomic conjugate

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21
Q

Measurement of the anatomic conjugate

A

11cm

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22
Q

How do you measure the true conjugate

A

By subtracting 1.2cm from diagonal conjugate

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23
Q

Distance between the midpoint of inner surface of symphysis pubis to midpoint of sacral promontory

A

Obstetric conjugate

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24
Q

Is the shortest distance between that sacral promontoryy and the symphysis pubis

A

Obstetric conjugate

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25
Q

Measurement of the obstetric conjugate

A

10cm

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26
Q

How do you measure the obstetric conjugate

A

By subtracting 1.5-2cm from the diagonal conjugate

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27
Q

represents the greatest distance between the linea terminalis on either side

A

Transverse diameter

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28
Q

Measurement of the transverse diameter

A

13cm

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29
Q

Divides the inlet into anterior and posterior segments

A

Transverse diameter

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30
Q

Extend from the sacroiliac joints to the opposite iliopubic eminence

A

Oblique diameters

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31
Q

Measurement of the oblique diameter

A

less than 13 cm

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32
Q

Extends from the lower margin of the symphysis pubis, through the level of the ischial spines up to the tip of the sacrum

A

Midpelvis

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33
Q

Distance between the two ischial spines is how much

A

10.5 cm (INTERSPINOUS DIAMETER)

34
Q

This is referred to as station 0 when the BPD of the fetal head passes 10.5cm

A

Interspinous diameter

35
Q

Usually the smallest pelvic diameter

A

Interspinous diameter

36
Q

Intertuberous diameter of the pelvic outlet measures what

A

11cm

37
Q

How many bones make up the pelvis

A

Four

38
Q

How many walls does the pelvis have

A

Four

39
Q

What are the four bones that make up the pelvis

A

2 hip bones, saccrum and coccyx

40
Q

What are the four walls of the pelvis

A

Anterior, Posterior, lateral and inferior or floor

41
Q

Shallowest wall formed by pubic bones posteriorly

A

Anterior Pelvic wall

42
Q

cartilaginous joint that sits between and joins the left and right superior rami of the pubic bones

A

Symphysis pubis

43
Q

In males, what structure is attached to the pubic symphysis

A

Suspensory ligament of the penis

44
Q

In the females, what structure is intimate with the symphysis pubis

A

Clitoris

45
Q

What wall is formed by the sacrum, coccyx and piriformis muscles

A

Posterior pelvic wall

46
Q

single, wedgge-shape bone formed by five rudimentary vertebrae

A

Sacrum

47
Q

The upper border of the sacrum articulates with what

A

lumbar vertebrae

48
Q

The lower border of the sacrum articulates with what

A

Coccyx

49
Q

The 1st sacral vertebra is also referred to as the

A

sacral promontory

50
Q

When the 4th and 5th vertebra fail to meet in the midline it is referred to as the

A

Sacral hiatus

51
Q

This space is formed by the vertebral foramen

A

Sacral canal

52
Q

A small triangular bone formed by 4 vertebrae

A

Coccyx

53
Q

The coccyx is attached to the sacrum by what fibrocartilaginous joint

A

sacrococcygeal joint

54
Q

Support and stabilize when in sitting position

A

coccyx

55
Q

Four muscles of the anterior coccyx

A

Levator ani, coccygeus, iliococcygeus, pubococcygeus

56
Q

Posterior muscle of the coccyx

A

Glutea maximus

57
Q

Two ligaments found in the coccyx

A

Anterior and posterior sacro-coccygeal ligaments

58
Q

Arises from the lateral mass of the sacrum and inserted to the greater trochanter of the femur

A

Piriformis muscle

59
Q

Action of the piriformis muscle

A

Lateral rotator of the femur

60
Q

Nerve supply of the piriformis muscle

A

Sacral plexus

61
Q

Strong synovial joints between the sacrum and need for iliac bones

A

Sacroiliac joints

62
Q

Strong ligament passing from the tip of the transverse process of the fiifth lumbar to upper magin of ileum

A

Iliolumbar ligament

63
Q

The lateral pelvic wall or hipbone is composed of what three structures

A

ilium, ischium and pubis

64
Q

flattened part of the hip bone

A

ilium

65
Q

inferiorly and posteriorly part of hip bone

A

Ischium

66
Q

Anterior part of the hipbone

A

Pubis

67
Q

fbrous sheet covers the obturator foramen

A

Obturator membrane

68
Q

Smalll opening for the passage of obturator nerve and vessels

A

Obturator canal

69
Q

Prevent the lower end of the sacrum and coccyx from being rotated upward

A

Sacrotuberous and sacrospinous ligament

70
Q

The action of this muscle is to laterally rotate the femur at the hip joint

A

Obturator internus

71
Q

formed by the levator an muscles and the small coccygeus muscles

A

pelvic diaphragm

72
Q

Allows passage for urethra and vagina

A

pelvic diaphragm

73
Q

Wide thin sheet that originates from the back of the body of the pubis

A

Levator ani muscles

74
Q

Nerve supply of the levator ani musclee

A

Perineal branch of the 4th sacra nerve and pudendal nerve

75
Q

Forms a sling around the vagina and are inserted into a mass of fibrous tissue called perineal body in front of the anal canal

A

Anterior fibers

76
Q

Forms a sling around the junction of the rectum and anal canal

A

Intermediate fibers

77
Q

Iliococcygeus inserted into the anococcygeal body and coccyx

A

Posterior fibers

78
Q

Arises from the ischial spine and is inserted to the lower end of the sacrum and upper part of coccyx

A

Coccygeus muscle

79
Q

Nerve supply of the coccygeus muscle

A

4th and 5th sacral nerve

80
Q

Two types of anterior fibers; one found in male while the other is found in females

A

Levator prostate and sphincter vaginae

81
Q

Two types of intermediate fibers

A

Puborectalis and pubococcygeus

82
Q

Two types of posterior fibers

A

Iliococcygeus inserted into the anococcygeal bodyy and the coccyx

Anatomy Finals (3 decks)

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