The Experts below are selected from a list of 48 Experts worldwide ranked by ideXlab platform

Felicity V Mehendale - One of the best experts on this subject based on the ideXlab platform.

  • surgical anatomy of the levator veli palatini a previously undescribed tendinous insertion of the anterolateral fibers
    Plastic and Reconstructive Surgery, 2004
    Co-Authors: Felicity V Mehendale
    Abstract:

    : The purpose of this study was to describe the previously unreported tendinous insertion of the anterolateral fibers of the levator veli palatini (levator) and discuss possible implications for levator function and cleft palate repair. The velopharyngeal anatomy in normal adult cadavers was studied, with histologic confirmation of anatomical findings. These findings were compared with a more limited study of levator anatomy in cleft palates at the time of intraoperative muscle dissection. Just before entering the velum, the levator divides into two parts. The smaller bundle of muscle fibers (anterolateral part) runs anteriorly, close to the lateral pharyngeal wall, and inserts into the Palatine Aponeurosis through a number of fine tendons. The main part of the muscle runs medially into the velum, where it fans out and forms the levator sling with the contralateral levator. The possible function of the anterolateral part of the levator is discussed. Inadequate release of the tendinous insertions at the time of palate repair may tether the levator anteriorly and compromise muscle retropositioning or may result in splitting of the levator, so that only part of the levator is retropositioned.

Hee Jin Kim - One of the best experts on this subject based on the ideXlab platform.

  • Anatomical considerations of the longitudinal pharyngeal muscles in relation to their function on the internal surface of pharynx
    Dysphagia, 2014
    Co-Authors: Da Yae Choi, Jung Hee Bae, Kwan Hyun Youn, Hee Jin Kim
    Abstract:

    The aim of this study was to clarify the topography of the longitudinal pharyngeal muscles and to relate the findings to pharyngeal muscular function. Forty-four specimens (22 right and 22 left sides) from embalmed Korean adult cadavers (13 males, 9 females; age range, 46–89 years; mean age, 69.2 years) were used in this study. The palatopharyngeus muscle originated from the Palatine Aponeurosis and the median part of the soft palate on oral aspect; it ran downward and lateralward, respectively. The palatopharyngeus muscle, which held the levator veli palatini, was divided into two bundles, medial and lateral, according to the positional relationship with the levator veli palatini. The lateral bundle of the palatopharyngeus muscle was divided into two parts: longitudinal and transverse. The pharyngeal longitudinal muscles were classified into the following four types (I–IV) depending on the area of insertion: they were inserted into the Palatine tonsil, epiglottis, arytenoid cartilage, piriform recess, thyroid cartilage, and pharyngeal wall. The transverse part of the palatopharyngeus muscle plays a role as a sphincter. Palatopharyngeus and levator veli palatini muscles help each other to function effectively in the soft palate. The present findings suggest that the pharyngeal muscles are involved not only in swallowing but also in respiration and phonation via their attachment to the laryngeal cartilage.

Da Yae Choi - One of the best experts on this subject based on the ideXlab platform.

  • Anatomical considerations of the longitudinal pharyngeal muscles in relation to their function on the internal surface of pharynx
    Dysphagia, 2014
    Co-Authors: Da Yae Choi, Jung Hee Bae, Kwan Hyun Youn, Hee Jin Kim
    Abstract:

    The aim of this study was to clarify the topography of the longitudinal pharyngeal muscles and to relate the findings to pharyngeal muscular function. Forty-four specimens (22 right and 22 left sides) from embalmed Korean adult cadavers (13 males, 9 females; age range, 46–89 years; mean age, 69.2 years) were used in this study. The palatopharyngeus muscle originated from the Palatine Aponeurosis and the median part of the soft palate on oral aspect; it ran downward and lateralward, respectively. The palatopharyngeus muscle, which held the levator veli palatini, was divided into two bundles, medial and lateral, according to the positional relationship with the levator veli palatini. The lateral bundle of the palatopharyngeus muscle was divided into two parts: longitudinal and transverse. The pharyngeal longitudinal muscles were classified into the following four types (I–IV) depending on the area of insertion: they were inserted into the Palatine tonsil, epiglottis, arytenoid cartilage, piriform recess, thyroid cartilage, and pharyngeal wall. The transverse part of the palatopharyngeus muscle plays a role as a sphincter. Palatopharyngeus and levator veli palatini muscles help each other to function effectively in the soft palate. The present findings suggest that the pharyngeal muscles are involved not only in swallowing but also in respiration and phonation via their attachment to the laryngeal cartilage.

Frank A. D. T. G. Wagener - One of the best experts on this subject based on the ideXlab platform.

  • Histology of the soft palate.
    2013
    Co-Authors: Paola Carvajal L. Monroy, Sander Grefte, Anne M. Kuijpers-jagtman, Maria P. A. C. Helmich, Dietmar J. O. Ulrich, Johannes W. Von Den Hoff, Frank A. D. T. G. Wagener
    Abstract:

    Paraffin sections were were cut from the tissue and stained with AZAN. (A) Midsagittal section of the soft palate. The anterior two thirds of the soft palate mainly contain salivary glands. The posterior third of the soft palate contains an additional layer of muscle tissue. (B) Coronal sections of the soft palate. The dotted lines in figure A indicate the position of the coronal sections. (B1) The Palatine Aponeurosis is the continuation of the tensor veli palatini and inserts into the posterior nasal spine. (B2) Posterior to the pterygoid hamulus, the levator veli platini fibers insert into the Palatine Aponeurosis. (B3) Most of muscle fibers of the levator veli palatini cross the midline and form a sling suspended from the skull base. N: nasal cavity, O: oral cavity, PA: Palatine Aponeurosis, SG: salivary glands, PNS: posterior nasal spine, LVP: levator veli palatini muscle, H: pterygoid hamulus. The bar represents 500 µm.

  • Anatomy of levator veli palatini and tensor veli palatini.
    2013
    Co-Authors: Paola Carvajal L. Monroy, Sander Grefte, Anne M. Kuijpers-jagtman, Maria P. A. C. Helmich, Dietmar J. O. Ulrich, Johannes W. Von Den Hoff, Frank A. D. T. G. Wagener
    Abstract:

    Left: Schematic representation of the levator veli palatini and tensor veli palatini muscles. Right: (A) The levator veli palatini muscle arises from the inferior surface of the temporal bone, lateral and posterior from the tympanic bulla. The tympanic bulla is a bony projection of the temporal bone containing the tympanic cavity. (B) Posterior to the pterygoid process, the levator veli palatini continues towards the soft palate. The glossopharyngeal, vagus and hypoglossal nerves are visible between the levator veli palatini and the skull base. (C) The tensor veli palatini originates from the inferior surface of the sphenoid bone, the lateral surface of the perygoid plate, and the auditory tube. (D) The tendon of the tensor veli palatini turns around a curved process; the pterygoid hamulus. It continues medially towards the soft palate and forms the Palatine Aponeurosis. LVP: levator veli palatini muscle, TVP: tensor veli palatini muscle, IX: glossopharyngeus nerve, X: vagus nerve, XII: hypoglossus nerve, Ty: Tympanic bulla, At: auditory tube, H: pterygoid hamulus, Pt: pterygoid process, PNS: posterior nasal spine, S: soft palate.

Jung Hee Bae - One of the best experts on this subject based on the ideXlab platform.

  • Anatomical considerations of the longitudinal pharyngeal muscles in relation to their function on the internal surface of pharynx
    Dysphagia, 2014
    Co-Authors: Da Yae Choi, Jung Hee Bae, Kwan Hyun Youn, Hee Jin Kim
    Abstract:

    The aim of this study was to clarify the topography of the longitudinal pharyngeal muscles and to relate the findings to pharyngeal muscular function. Forty-four specimens (22 right and 22 left sides) from embalmed Korean adult cadavers (13 males, 9 females; age range, 46–89 years; mean age, 69.2 years) were used in this study. The palatopharyngeus muscle originated from the Palatine Aponeurosis and the median part of the soft palate on oral aspect; it ran downward and lateralward, respectively. The palatopharyngeus muscle, which held the levator veli palatini, was divided into two bundles, medial and lateral, according to the positional relationship with the levator veli palatini. The lateral bundle of the palatopharyngeus muscle was divided into two parts: longitudinal and transverse. The pharyngeal longitudinal muscles were classified into the following four types (I–IV) depending on the area of insertion: they were inserted into the Palatine tonsil, epiglottis, arytenoid cartilage, piriform recess, thyroid cartilage, and pharyngeal wall. The transverse part of the palatopharyngeus muscle plays a role as a sphincter. Palatopharyngeus and levator veli palatini muscles help each other to function effectively in the soft palate. The present findings suggest that the pharyngeal muscles are involved not only in swallowing but also in respiration and phonation via their attachment to the laryngeal cartilage.