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Summary Periné

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Anatomía sobre Periné, fascias de recubrimiento, músculos que lo constituyen junto a su irrigación e inervación.

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PERINE
 Es el conjunto de partes blandas que cierran la cavidad pelviana hacia abajo y que se encuentran por debajo del diafragma pélvico
 Presenta una forma romboidal. Con un marco osteofibroso y un contenido (órganos subperitoneales)
 Se proyecta desde superficial (piel) hasta la profundidad (fascia inferior del diafragma pelvico)

Ant: sínfisis del pubis

Anterolat: rama isquiopub

Lat: tuberosidad isquiatica

Posterolat: lig sacroespinoso y
sacrotuberoso


Post: sacro y coxis


 División del periné  se da por una línea transversal imaginaria que une las dos tuberosidades isquiáticas:
a. Triangulo perineal anterior  Triangulo urogenital (periné anterior), y es diferente por sexo
b. Triangulo perineal posterior  Triangulo rectoanal (periné posterior), centrado en el ano




Fascia perineal superficial (Colles)
 Es una capa membranosa delgada y resistente que separa la piel y la grasa subcutánea de los músculos superficiales del periné
(bulboesponjoso, isquiocavernoso, y el músculo transverso superficial). La fascia de Colles cubre los músculos de esta región. En la
mujer esta interrumpido en la zona media por la zona vulvar.

Musculos del perine
 Dividios en dos grupos
o Músculos del triangulo anal
o Músculos del triangulo urogenital: subdividido en superficiales y profundos
Músculos del triangulo urogenital
SUPERFICIALES
1. Musculo transverso superficial (desdoblamiento del profundo): tuberosidad isquiática  cuerpo del periné
2. Musculo esfínter externo: fibras circulares que envuelven el ano
3. Musculo isquiocarvernoso (erector del clítoris): rama del isquion  envoltura del cuerpo cavernoso del pene/ delclitoris
4. Musculo bulbo esponjoso (constrictor de la vagina): lateral a línea media del cuerpo perineal bulbo del pene/arco del pubis y
fascia de cuerpos del clítoris
5. Musculo constrictor de la vulva: fibras circulares alrededor de la vagina

MEDIOS
1. Musculo transverso profundo: rama y tuberosidad del isquiopubiana  cuerpo perineal
2. Musculo esfínter externo de la uretra: fibras circulares envuelven la uretra
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