Levator Ani Hiatus

The levator ani hiatus is an opening in the pelvic floor formed by the levator ani muscles, allowing the urethra, vagina, and rectum to pass between the pelvic cavity and the perineum. Its size and shape depend on the coordinated activity of muscles such as the puborectalis and pubococcygeus, which provide support while permitting urination, defecation, and childbirth. The hiatus is therefore central to pelvic organ support and continence. Anatomical study and imaging of this region help clinicians assess pelvic floor dysfunction, understand mechanisms of pelvic organ prolapse, and guide evaluation of urinary, anorectal, and reproductive disorders.

Levator Ani Hiatus - Related Videos

Research

JoVE Journal - Medicine

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse

0 Views •

Cited by 2 •

2019

Here we present a protocol to standardize the measurement of the levator ani hiatus size by magnetic resonance imaging. The purpose is to extract biomechanical inferences from image analysis by comparing resting and straining values in patients of both sexes with pelvic prolapse, using consistent anatomical bony landmarks.

Subcutaneous Administration of Muscarinic Antagonists and Triple-Immunostaining of the Levator Auris Longus Muscle in Mice

0 Views •

Cited by 7 •

2011

We describe procedures for repeated administration of inhibitors of muscarinic signaling to the levator auris longus (LAL) muscle of young adult mice and for subsequent immunostaining of its neuromuscular junctions (NMJs) in wholemounts. The LAL muscle has unique advantages for revealing in vivo pharmacological effects on NMJs.

Levator Auris Longus Preparation for Examination of Mammalian Neuromuscular Transmission Under Voltage Clamp Conditions

0 Views •

Cited by 9 •

2018

The protocol described in this paper uses the mouse levator auris longus (LAL) muscle to record spontaneous and nerve-evoked postsynaptic potentials (current-clamp) and currents (voltage-clamp) at the neuromuscular junction. Use of this technique can provide key insights into mechanisms of synaptic transmission under normal and disease conditions.

Combined In Vivo Electroporation and Short-Term Reinnervation of the Cranial Levator Auris Longus Skeletal Muscle

0 Views •

Cited by 1 •

2024

Here, we present a protocol that combines in vivo electroporation and denervation of the cranial levator auris longus (LAL) muscle. This procedure enables the study of the potential role of muscle-derived proteins in the regeneration of the neuromuscular synapse.

Transvaginal Mesh Insertion in the Ovine Model

0 Views •

Cited by 11 •

2017

This protocol describes mesh implantation in the ovine rectovaginal septum using a single vaginal incision technique, with and without the trocar-guided insertion of anchoring arms.

View All Results

FAQs

Related Topics