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Head and Neck Muscles
Published in Eve K. Boyle, Vondel S. E. Mahon, Rui Diogo, Handbook of Muscle Variations and Anomalies in Humans, 2022
Eve K. Boyle, Vondel S. E. Mahon, Rui Diogo, Warrenkevin Henderson, Hannah Jacobson, Noelle Purcell, Kylar Wiltz
Cricoarytenoideus posterior (the posterior cricoarytenoid muscle) may be divided (Macalister 1875). It may also be bilaminar (Macalister 1875). It may send a slip to the cricothyroid joint (Macalister 1875; Maranillo and Sanudo 2016). The posterior cricoarytenoid muscle is associated with a few accessory muscles. It may be joined to the ceratocricoid muscle (Macalister 1875; Maranillo and Sanudo 2016; see the entry for this muscle). It may also be associated with ceratoarytenoid (also referred to as posterior thyroarytenoid, accessory thyroarytenoid, or ceratoarytenoideus lateralis), which extends between the inferior cornu of the thyroid cartilage and the muscular process of the arytenoid cartilage (Gruber 1868b; Macalister 1867b, 1875; Knott 1883a; Le Double 1897; Hetherington 1934; Saban 1968; Maranillo and Sanudo 2016). A cricocorniculate muscle may be present that originates from the upper margin of the cricoid cartilage and inserts into the corniculate cartilage (Maranillo and Sanudo 2016).
Anatomy overview
Published in Stephanie Martin, Working with Voice Disorders, 2020
The lateral cricoarytenoids are paired muscles arising from the sides and upper surface of the cricoid cartilage to the muscle process of the arytenoids. Functioning together with the interarytenoids they adduct the vocal folds. The close interrelationship of the posterior cricoarytenoid muscles and the lateral cricoarytenoids might, as already noted, suggest that they too have a role in the abduction of the vocal folds.
Obstruction of the Respiratory Orifices, Larynx, Trachea and Bronchia
Published in Burkhard Madea, Asphyxiation, Suffocation,and Neck Pressure Deaths, 2020
In approximately half of all cases, soft tissue haemorrhages are established that correspond to the furrow of the ligature. The haemorrhages are located in the subcutaneous tissue, under the muscle fasciae and in the musculature itself [70,75]. They are usually less intensive in the nape than at the front and lateral areas of the neck. There is substantial bleeding in the soft tissues of the larynx and particularly in the posterior cricoarytenoid muscle.
Clinical outcomes of end-flexible-rigidscopic transoral surgery (E-TOS) in patients with T1-selected T3 pharyngeal and supraglottic cancers
Published in Acta Oto-Laryngologica, 2019
Yoshiki Watanabe, Shinzo Tanaka, Yasuyuki Hiratsuka, Hiroshi Yamazaki, Takao Yoshida, Junko Kusano, Isao Morita, Momoko Matsunaga, Masayuki Kitano, Tomoya Yamaguchi
One month after E-TOS with or without neck dissection, all of 45 patients were able to eat meals (normal meal in 42 patients, soft meal in three patients) although swallowing rehabilitation was required in 14 of these 45 patients. The median fasting period after the surgeries was seven days, ranging 1–21 days. Prolonged impairment of vocal cord abduction occurred in 6 of 11 patients whose posterior cricoarytenoid muscle was partially resected due to tumor invasion, but no patient complained of postoperative hoarseness (Table 3).
Intraoperative Posterior Cricoarytenoid Muscle Electromyography May Predict Vocal Cord Function Prognosis after Loss of Signal during Thyroidectomy
Published in Journal of Investigative Surgery, 2021
Nurcihan Aygun, Adnan Isgor, Mehmet Uludag
Vocal cords (VCs) play a critical role in respiration, sound production and airway protection, and their movements are coordinated by the intrinsic laryngeal muscles. Of the intrinsic laryngeal muscles, motor innervation of both the adductor muscles (thyroarytenoid muscle (TAM), lateral cricoarytenoid muscle, interarytenoid muscle) and the abductor muscle (posterior cricoarytenoid muscle (PCAM)) is provided by the recurrent laryngeal nerve (RLN) [1].
Vocal cord dysfunction/inducible laryngeal obstruction: novel diagnostics and therapeutics
Published in Expert Review of Respiratory Medicine, 2023
Joo Koh, Debra Phyland, Malcolm Baxter, Paul Leong, Philip G Bardin
Rescue breathing techniques aimed at facilitating activation of the posterior cricoarytenoid muscle (i.e. the sole vocal fold abductor) have been shown to be useful but little data are available to support their acute use or to recommend specific techniques that could translate to universal immediate symptom resolution.