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💀anatomy and physiology i review

Superficial Transverse Perineal Muscles

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

The superficial transverse perineal muscles are a pair of small, flat muscles located in the perineal region. They are part of the axial musculature and play a role in supporting the pelvic floor and maintaining the integrity of the perineal body.

5 Must Know Facts For Your Next Test

  1. The superficial transverse perineal muscles originate from the ischial tuberosities and insert into the perineal body.
  2. These muscles contribute to the support and stability of the pelvic floor, helping to maintain the integrity of the perineal body.
  3. Contraction of the superficial transverse perineal muscles can assist in the closure of the urogenital hiatus, aiding in the maintenance of urinary and fecal continence.
  4. Dysfunction or weakening of the superficial transverse perineal muscles can lead to pelvic floor disorders, such as pelvic organ prolapse or incontinence.
  5. The superficial transverse perineal muscles are part of the axial musculature, which also includes the muscles of the abdominal wall and thorax.

Review Questions

  • Describe the location and function of the superficial transverse perineal muscles within the context of the axial musculature.
    • The superficial transverse perineal muscles are a pair of small, flat muscles located in the perineal region. They originate from the ischial tuberosities and insert into the perineal body, providing support and stability to the pelvic floor. As part of the axial musculature, the superficial transverse perineal muscles contribute to the integrity and function of the pelvic floor, assisting in the maintenance of urinary and fecal continence. Their dysfunction can lead to pelvic floor disorders, highlighting their importance within the broader context of the axial musculature.
  • Explain the role of the superficial transverse perineal muscles in the context of the abdominal wall and thorax.
    • The superficial transverse perineal muscles, as part of the axial musculature, are connected to the broader musculature of the abdominal wall and thorax. While their primary function is to support the pelvic floor, the superficial transverse perineal muscles also contribute to the overall stability and coordination of the trunk. This integration with the abdominal wall and thoracic muscles allows for efficient force transmission and the maintenance of proper posture and core stability, which are essential for various physical activities and daily functions.
  • Analyze the potential impact of dysfunction or weakening of the superficial transverse perineal muscles on the overall health and well-being of an individual.
    • Dysfunction or weakening of the superficial transverse perineal muscles can have significant implications for an individual's health and well-being. As these muscles play a crucial role in supporting the pelvic floor, their impairment can lead to pelvic floor disorders, such as pelvic organ prolapse or incontinence. These conditions can not only cause physical discomfort and impairment but also have a profound impact on an individual's emotional and social well-being, affecting their quality of life. Furthermore, the integration of the superficial transverse perineal muscles with the broader axial musculature means that their dysfunction can also contribute to broader issues related to core stability, posture, and overall physical function. Therefore, the proper assessment and management of superficial transverse perineal muscle health are essential for maintaining optimal bodily function and overall well-being.