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** '''Teat Opening''': opening of the teat canal.  The exit point for milk or entrance point for bacteria into the mammae.  
 
** '''Teat Opening''': opening of the teat canal.  The exit point for milk or entrance point for bacteria into the mammae.  
 
* '''Sphincter''': muscular fibres surrounding the teat opening that prevent milk flow except during suckling or milking.
 
* '''Sphincter''': muscular fibres surrounding the teat opening that prevent milk flow except during suckling or milking.
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'''''Suspensory apparatus'''''
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Organised into lateral and medial laminae which anchor the udder to the body wall by their attachment to the pubic symphysis.
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* '''Lateral Lamina''': collagen fibres from the fascia of the pubic symphysis and the edge of the superficial inguinal ring.
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* '''Medial Lamina''': elastic fibres from the tunica flava ventral to the pubic symphysis.  Separates the udder into right and left halves.
      
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