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Repro Anatomy Muscles > Perineum > Flashcards

Perineum Flashcards

1
Q

The Anterior Boundary of Perineum?

A

Pubic Symphysis

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2
Q

The Posterior Boundary of Perineum?

A

Coccyx Tip

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3
Q

The Lateral Boundary of Perineum?

A

Inferior Pubic Rami and Ischial Rami

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4
Q

The Roof Boundary of Perineum?

A

Pelvic Floor

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5
Q

The Base Boundary of Perineum?

A

Skin and Fascia

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6
Q

What bony prominences separate each of the triangles?

A

Ischial Tuberosities

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7
Q

A thin sheet of deep fascia stretches between right and left sides of the pubic arch, below the pubic symphysis.

What is the name given to this fascia

A

Perineal Membrane

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8
Q

Perineum Innervation

A

Pudental Nerve S2-4

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9
Q

External Anal Sphincter Action and Innervation

A

Relaxes from Tonic Contraction

Pudental Nerve S2-4

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10
Q

Superficial Transverse Perineal Action and Innervation

A

Fixation and Stablisation of perineal Body

Pudental Nerve S2-4

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11
Q

Deep Transverse Perineal Action and Innervation

A

Fixation and stablisation of perineal body. Expulsion of semen and urine.

Pudental Nerve S2-4

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12
Q

External Urethral Sphincter Action and Innervation

A

Compress urethra to maintain urinary continence

Pudental Nerve S2-4

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13
Q

Bulbospongiosus (Male) Action and Innervation

A

Compresses Penis Bulb and Contributes to Erection, Orgasm Contractions and Ejaculation

Pudental Nerve S2-4

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14
Q

Bulbospongiosus (Female) Action and Innervation

A

Compresses Vestibular Bulb and Constricts Vaginal Orifice

Pudental Nerve S2-4

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15
Q

Ischiocavernosus Male Action and Innervation

A

Stabilise erection by compressing corpus cavernosum

Pudental Nerve S2-4

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16
Q

Ishiocavernosus Female Action and Innervation

A

Tense Vagina during Orgasm

Pudental Nerve S2-4

17
Q

What are the potential consequences if the perineal body is damaged/ruptured during childbirth?

A

Perineal Laceration

18
Q

Which structures pierce through the pelvic diaphragm? (3)

A

Urethra
Vagina
Rectum

Repro Anatomy Muscles (5 decks)

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