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| | Vocal Cord Paralysis |
 | | Nonfunction of the intrinsic muscles of the larynx on the affected side (loss of abduction with intact adduction by cricothyroid) cause the vocal cord to assume a paramedian position. | | | The external superior laryngeal nerve runs over the inferior constrictor muscle to innervate the one muscle of the larynx not innervated by the recurrent laryngeal nerve, the cricothyroid muscle. | | | The cricothyroid muscle is considered to be an extrinsic muscle of the larynx because it is innervated by the external branch of the superior laryngeal nerve. |
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http://www.otohns.net/default.asp?id=15324
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| | II-LARYNX.doc |
| | For instance, the cricothyroid muscle, which happens to be the only intrinsic muscle on the external surface of the larynx, is innervated by the external branch of the superior laryngeal nerve. | | | Similarly, the 'false' (i.e., vestibular) folds are formed by the draping of muscosa over the medial border of the thyroarytenoid muscle, penetrated by the downward extension of the quadrangular membrane. | | | Phonation the vocal ligaments are straightened, and tensed, under the action of the cricothyroid, to approximate one another at the midline. |
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http://www.utmed.com/studynotes/gross/II-LARYNX.doc
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| | ga4-hn11.doc |
| | Supplies all of the muscles of the larynx except for the cricothyroid muscle. | | | The origin, course and distribution of the sensory nerves (internal branch of the superior laryngeal nerve and the recurrent laryngeal nerve), and motor nerves (external branch of the superior laryngeal for the cricothyroid and the recurrent laryngeal nerve to all other intrinsic muscles) associated with the larynx. | | | Each fold has: vocal ligament thickened elastic tissue that is the medial free edge of the lateral cricothyroid ligament (conus elasticus) vocalis muscle the fine muscle fibers that form the most medial part of the thyroarytenoid muscle The folds are the source of sounds. |
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http://www.med.unc.edu/wms/firstaid/ga4-hn11.doc
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| | Larynx Part I - Text Only Page |
| | Larynx, ventral view, demonstrating cricothyroid muscle and middle cricothyroid ligament. | | | Ventral view, everything removed revealing cricothyroid, sternothyroid and thyrohyoid muscles. | | | Part of thyroarytenoid muscle and most of vocal ligament can be seen in relation to vocal process of arytenoid cartilage. |
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http://zemlin.shs.uiuc.edu/LarynxPages/Text_Only_LarynxI.html
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| | Airway_Reflexes_1994.txt |
| | Each RLN innervates all muscles except for the cricothyroid, which is innervated by the SLN. | | | The vocal cords are positioned near the midline by isotonic tensing of the cricothyroid muscles. | | | Recurrent Laryngeal Nerve a.supplies motor innervation to all the intrinsic muscles of the larynx on the same side except for cricothyroid, and to the interarytenoid muscle of both sides. |
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http://www.utmb.edu/oto/Grand_Rounds_Earlier.dir/Airway_Reflexes_1994.txt
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| | wk03anat.txt |
| | A: All the intrinsic muscles of the larynx except the cricothyroid. | | | Q: What is the action of the cricothyroid muscle? | | | A: The cricothyroid ligament and the vestibular ligament. |
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http://members.optusnet.com.au/haju/notes/2_anat/wk03anat.txt
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| | Neck lecture notes |
| | Tension is affected by the vocalis and cricothyroid muscles. | | | Its sensory innervation is by the recurrent laryngeal nerves (mixed-motor to all laryngeal muscles except for the cricothyroid muscle) which pierced the cricothyroid membrane. | | | The thickened midline portion of this membrane is the median cricothyroid ligament (Clemente plate 558 fig. |
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http://web.indstate.edu/thcme/duong/neck.html
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| | pharynx.html |
| | The CRICOTHYROID MUSCLES (illustrated in Figure 5) are the muscles primarily responsible for regulating the tension of the vocal cords. | | | Exception: The CRICOTHYROID MUSCLE, which receives its innervation via the EXTERNAL LARYNGEAL NERVE. | | | (On right) Schematic drawing of the larynx as seen from the side to show how movement of the thyroid cartilage at the cricothyroid joint affects the tension of the vocal cords. |
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http://www.emory.edu/ANATOMY/AnatomyManual/pharynx.html
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| | Vocalist.org archive |
| | > you describe as a gradual transition as the cricothyroid muscle | | | > they are mucosal, vocal ligament, vocalis muscle) the use or | | | > the mucosal membrane and to some degree, the vocal ligament. |
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http://www.vocalist.org/group/vocalist-temporary/message/7632.html
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| | Larynx |
| | represents the innermost fibers of the thyroarytenoid muscle; the cricothyroid m. | | | supplies the cricothyroid m.; all other intrinsic muscles of the larynx are supplied by the recurrent laryngeal n. | | | is the continuation of the recurrent laryngeal n., the name change occurs at the cricothyroid articulation |
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http://anatomy.uams.edu/anatomyhtml/larynx.html
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| | Written Quiz - Carotid Sheath, Pharynx and Larynx |
| | The laryngeal muscle most responsible for stretching (elongating) the vocal ligament is the : | | | Any manipulation of the superior thyroid artery must be undertaken with care not to damage its small companion nerve, the: | | | Upon examination it was determined that the area of the piriform recess above the vocal fold of the larynx was numb. |
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http://www.med.umich.edu/lrc/coursepages/M1/anatomy/html/quizzes/written/session39.html
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| | Lab Manual - Carotid Sheath, Pharynx, & Larynx |
| | Deep to the cricothyroid muscle is a thick elastic membrane, the conus elasticus; note its median cricothyroid ligament. | | | Extend this incision posteriorly, severing all neck muscles posterior to the mastoid process. | | | Clean and identify the muscles of the pharynx and pharyngeal plexus. |
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http://anatomy.med.umich.edu/nervous_system/deepneck.html
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| | z_larynx.html |
| | External Laryngeal nerve ‑ motor (SVE) to cricothyroid muscle. | | | Extrinsic muscles of larynx &; move entire larynx, active during swallowing; suprahyoid muscles elevate larynx, infrahyoid muscles depress larynx. | | | Closing rima glottidis ‑ When vocal ligaments are pressed tightly together the rima glottidis is closed; this prevents upward movement of the diaphragm when the abdominal muscles contract; contraction of the abdominal muscles therefore increases pressure in the abdomino‑pelvic cavity; this is useful in childbirth, micturition, defecation, etc. |
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http://musom.marshall.edu/anatomy/grosshom/z_larynx.html
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| | Encyclopedia: List of anatomical topics |
| | The cricothyroid muscle attaches to the anterolateral aspect of the cricoid and the inferior cornu and lower lamina of the thyroid cartilage, tilting the thyroid forwards and lengthening the vocal cords. | | | The cricothyroid ligament is the larger part of the laryngeal membrane, continuing inferiorly as a median or anterior part and twin lateral ligaments. | | | The anterior cerebral artery supplies oxygen to most medial portions of frontal lobes and superior medial parietal lobes. |
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http://www.nationmaster.com/encyclopedia/List-of-anatomical-topics
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