Pelvis And Perineum Anatomy Flashcards

1
Q

What is the pubis symphysis

A

Where the two pubic bones meet in the midline , almost no movement is permitted
Shock absorption during walking and childbirth

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2
Q

What bones is the pelvis made up from

A

Ilium
Ischium
Pubis

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3
Q

Where and what is the asis

A

Anterior superior iliac spine

Most anterior portion of ilium

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4
Q

What does the ischium form

A

Posteroinferior part of the hipbone

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5
Q

What is the ischium composed of

A

Body inferior and superior ramus

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6
Q

Where is the sacrum

A

Terminal part of the vertebral canal

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7
Q

5 articulations of the bony pelvis

A
Hip joint 
Sacroiliac joint 
Pubic symphysis 
Lumbosacral joint 
Sacrococcygeal joint
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8
Q

Function of pelvic floor muscles

A

Prevent herniation of pelvic organs inferiorly
Control continence of urine and faeces
Aid in increasing intra abdom pressure

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9
Q

muscles of the pelvic floor

A

Levator ani

Coccygeus

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10
Q

Three smaller muscles of Levator ani

A

Puborectalis
Pubociccygeus
Iliococcygeus

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11
Q

What is pelvic perineum

A

Superficial region between pubic symphysis and the coccyx

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12
Q

Vasculature , Innervation of perineum

A

Internal pudendal artery

Pudendal nerve

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13
Q

Layers of urogenital triangle

A
Skin
Perineal fascia 
Superficial perineal fascia 
Perineal membrane 
Deep perineal pouch
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14
Q

what is the perineum

A

diamond shaped structure in pelvis

vital role in defecation, sex, micturition and birth

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15
Q

anatomical borders of perineum

A

anterior - pubic symphysis
posterior - tip of coccyx
lateral- inferior pubic rami
roof - pelvic floor

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16
Q

what is the anal aperture

A

opening of anus

17
Q

vasculature, drainage and innervation to vagina

A

blood- uterine and vaginal artery - branches of internal iliac
drainage- vagina venous plexus- to internal iliac vein
sup vagina- uterovaginal plexus
inferior- pudendal, deep perineal nerve

18
Q

function of anacoccygeal raphe

A

support the anus