Nature

Presence of smooth muscle continuous with the rectal and vaginal walls in the deep perineal space prompts reconsideration of the deep transverse perineal muscle

The deep transverse perineal muscle was considered a striated muscle within the deep perineal space; however, recent studies suggest that it consists of smooth muscle. We investigated the histological ...
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Goodbye crunches and sit-ups — these 3 exercises target your 'deep core' muscles to strengthen your pelvic floor and stabilize your spine

Building a strong core means far more than just flattening your stomach or sculpting visible abs. Your deep core refers to a group of muscles that stabilize your spine, pelvis, and internal organs, ...