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The vocal folds, also known commonly as vocal cords, are composed of twin infoldings of mucous membrane stretched horizontally across the larynx. They vibrate, modulating the flow of air being expelled from the lungs during phonation. [1][2] [3] Image File history File links File links The following pages link to this file: Vocal cords Wikipedia:Grays Anatomy images with missing articles 20 ...
Abduction, in functional anatomy, is a movement which draws a limb away from the median plane of the body. ...
In anatomy and physiology, adduction is the moving of limbs towards the midline of the body. ...
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Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ...
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The mucous membranes (or mucosae; singular: mucosa) are linings of mostly endodermal origin, covered in epithelium, and are involved in absorption and secretion. ...
The larynx (plural larynges), colloquially known as the voicebox, is an organ in the neck of mammals involved in protection of the trachea and sound production. ...
Look up vibration in Wiktionary, the free dictionary. ...
In phonetics, phonation is the use of the laryngeal system to generate an audible source of acoustic energy, i. ...
Open during inhalation, closed when holding one's breath, and vibrating for speech or singing (oscillating 440 times per second when singing A above middle C); the folds are controlled via the vagus nerve. They are white because of scant blood circulation. Oscillation is the variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states. ...
In Western music, the expression middle C refers to the note C or Do located exactly between the two staves of the grand staff, quoted as C4 in note-octave notation (also known as scientific pitch notation). ...
The vagus nerve (also called pneumogastric nerve or cranial nerve X) is the tenth of twelve paired cranial nerves, and is the only nerve that starts in the brainstem (within the medulla oblongata) and extends, through the jugular foramen, down below the head, to the abdomen. ...
Vocal fold oscillation
The larynx is a major (but not the only) source of sound in speech, generating sound through the rhythmic opening and closing of the vocal folds. To oscillate, the vocal folds are brought near enough together such that air pressure builds up beneath the larynx. The folds are pushed apart by this increased subglottal pressure, with the inferior part of each fold leading the superior part. Under the correct conditions, this oscillation pattern will sustain itself. In essence, sound is generated in the larynx by chopping up a steady flow of air into little puffs.[4] Look up speech, speaking, utter, gab in Wiktionary, the free dictionary. ...
The perceived pitch of a person's voice is determined by a number of different factors, not least of which is the fundamental frequency of the sound generated by the larynx. A person's natural fundamental frequency is influenced by many factors, including the length, size, and tension of the vocal folds. In an adult male, this frequency averages about 125 Hz, adult females around 210 Hz, in children the frequency is over 300 Hz. Depth-Kymography[5] is an imaging method to visualize the complex horizontal and vertical movements of vocal folds. Vibration and standing waves in a string, The fundamental and the first 6 overtones The fundamental tone, often referred to simply as the fundamental and abbreviated fo, is the lowest frequency in a harmonic series. ...
This article is about the SI unit of frequency. ...
Location The folds are located below the epiglottis, the lid-like flap that separates the windpipe from the esophagus. The epiglottis is a lid-like flap of fibrocartilage tissue covered with a mucus membrane, attached to the root of the tongue. ...
The folds are located just above the trachea or the windpipe which travels from the lungs. Food and drink does not pass through the folds but is instead taken through the esophagus, an unlinked tube. Both tubes are separated by the tongue and an automatic gag reflex. When food goes down through the folds and trachea it causes choking. Windpipe redirects here. ...
The esophagus or oesophagus (see American and British English spelling differences), sometimes known as the gullet, is an organ in vertebrates which consists of a muscular tube through which food passes from the pharynx to the stomach. ...
For choking meaning compression of the neck, see Strangling. ...
Folds in both sexes are within the larynx. They are attached at the back (side nearest the spinal cord) to the arytenoid cartilages, and at the front (side under the chin) to the thyroid cartilage. Their outer edges (as shown in the illustration) are attached to muscle in the larynx while their inner edges, or margins are free (the hole). They are constructed from epithelium, but they have a few muscle fibres in them, namely the vocalis muscle which tightens the front part of the ligament near to the thyroid cartilage. They are flat triangular bands and are pearly white in color. Above both sides of the vocal cord (the hole and the ligament itself) is the vestibular fold or false vocal fold, which has a small sac between its two folds (not illustrated). The larynx (plural larynges), colloquially known as the voicebox, is an organ in the neck of mammals involved in protection of the trachea and sound production. ...
Arytenoid can refer to: Arytenoid cartilage Arytenoid muscle Category: ...
Cartilage is a type of dense connective tissue. ...
This article is about the epithelium as it relates to animal anatomy. ...
The Thyreoarytænoideus (Thyroarytenoid) is a broad, thin, muscle which lies parallel with and lateral to the vocal fold, and supports the wall of the ventricle and its appendix. ...
SAC can mean: S-Allyl cysteine, a chemical constituent of garlic SAC Capital Partners, a hedge fund managed by Steven A. Cohen SAC programming language St. ...
Sex differences Men and women have different vocal fold sizes. Adult male voices are usually lower pitched and have larger folds. The male vocal folds (which would be measured vertically in the opposite diagram), are between 17 mm and 25 mm in length.[6]
Matching the female body, which on the whole has less muscle than the male, females have smaller folds. The female vocal folds are between 12.5 mm and 17.5 mm in length.
Folds are pearly white in color - whiter in females than they are in males.
The difference in vocal fold size between men and women means that they have differently pitched voices. Additionally, genetics also causes variances amongst the same sex, with men's and women's voices being categorised into types.
Spelling Vocal cords, a term commonly used to refer to the vocal folds, is also spelled 'vocal chords', possibly due to the musical connotations or to confusion with the geometrical definition of the word "chord". While both spellings are historically correct, standard American spelling is 'vocal cords'. [7] According to the Oxford English corpus, contemporary writers opt for vocal chords instead of vocal cords 49% of the time.[8] [9] The 'vocal chords' variant has long been accepted in the United Kingdom (along with other anatomical uses like 'spinal chord'). Even in the United States, both variants can be found from early on, and it was only later on that American writers settled on 'vocal cords' as the standard version.[10][11] A chord of a curve is a geometric line segment whose endpoints both lie on the curve. ...
False vocal folds The vocal folds discussed above are sometimes called 'true vocal folds' to distinguish them from the false vocal folds. These are a pair of thick folds of mucous membrane that sit just above, and protect the more delicate true folds. They have minimal role in normal phonation, but are often used in musical screaming and the death grunt singing style. They are also used in Tuvan throat singing. In phonetics, phonation is the use of the laryngeal system to generate an audible source of acoustic energy, i. ...
Screaming is a form of vocalization common in certain genres of alternative rock, as well as heavy metal, hardcore punk, post-hardcore and emo. ...
Death grunts, also referred to as death growls, death vocals or harsh vocals[1], is a vocalisation style usually employed by vocalists of the death metal musical genre, but is also occasionally used in a variety of other heavy metal sub-genres. ...
Physical representation of first (O1) and second (O2) overtones. ...
The false folds are also called vestibular folds and ventricular folds. They can be seen on the diagram above as ventricular folds. The vestibular fold (ventricular fold, superior or false vocal cord) is one of two thick folds of mucous membrane, each enclosing a narrow band of fibrous tissue, the ventricular ligament which is attached in front to the angle of the thyroid cartilage immediately below the attachment of the epiglottis, and...
False vocal folds, when surgically removed, can regenerate completely.
See also A vocal fold nodule (or Nodules of vocal cords) is a nodule or mass of tissue that grows on the vocal folds (vocal cords). ...
For other uses, see Adams apple (disambiguation). ...
Falsetto (Italian diminutive of falso, false) is a singing technique that produces sounds that are pitched higher than the singers normal range, in the treble range. ...
Physical representation of first (O1) and second (O2) overtones. ...
Bogart-Bacall Syndrome is a vocal misuse disorder. ...
In phonetics, phonation is the use of the laryngeal system to generate an audible source of acoustic energy, i. ...
Additional images Larynx Image File history File links Illu_larynx. ...
| | Coronal section of larynx and upper part of trachea. Image File history File links Gray954. ...
| The entrance to the larynx, viewed from behind. Image File history File links Gray955. ...
| Muscles of the larynx, seen from above. Image File history File links Gray960. ...
| Sagittal section of nose mouth, pharynx, and larynx. Image File history File links Download high resolution version (600x861, 185 KB) Summary See image:Gray994-adenoid. ...
| Cut through the larynx of a horse Image File history File links Kehlkopf_Pferd. ...
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References - ^ Titze, I. R. (2008). The human instrument. Sci.Am. 298 (1):94-101. PM 18225701
- ^ Titze, I.R. (1994). Principles of Voice Production, Prentice Hall (currently published by NCVS.org), ISBN 978-0137178933.
- ^ Maton, Anthea; Jean Hopkins, Charles William McLaughlin, Susan Johnson, Maryanna Quon Warner, David LaHart, Jill D. Wright (1993). Human Biology and Health. Englewood Cliffs, New Jersey, USA: Prentice Hall. ISBN 0-13-981176-1.
- ^ Titze, I. R. (1988) The physics of small-amplitude oscillation of the vocal folds. J.Acoust.Soc.Am. 83 (4):1536-1552, PM:3372869.
- ^ Depth-Kymography: High-speed calibrated 3D imaging of human vocal folds vibration dynamics, Nibu A George et.al., Physics in Medicine and Biology, May 2008
- ^ Titze, I.R. (1994). Principles of Voice Production, Prentice Hall (currently published by NCVS.org), ISBN 978-0137178933.
- ^ http://www.bartleby.com/68/47/1247.html Kenneth G. Wilson (1923–). The Columbia Guide to Standard American English. 1993.
- ^ http://blog.oup.com/2007/10/corpus-2/ OUP blog
- ^ http://abcnews.go.com/Video/playerIndex?id=3737179 ABC News video
- ^ http://blog.oup.com/2007/10/corpus-2/ OUP blog
- ^ http://www.jstor.org/view/00274666/ap030508/03a00160/0 The Musical Times issue April 1946.
External links | General anatomy of head and neck - neck (including throat) | | Pharynx | Laryngopharynx (Piriform sinus, Pharyngeal raphe) - Esophagus | | Larynx | | | major/unpaired: Epiglottis (Vallecula) • Thyroid (Laryngeal prominence, Oblique line, Superior thyroid notch, Superior horn, Inferior horn) • Cricoid
minor/paired: Arytenoid (Vocal process, Muscular process) • Corniculate • Cuneiform | | | extrinsic ligaments: Hyoepiglottic ligament • Thyrohyoid membrane (Lateral ligament, Median ligament) • Thyroepiglottic ligament • Cricotracheal ligament intrinsic ligaments - upper: Quadrangular membrane (Aryepiglottic, Vestibular ligament/Vestibular fold) eMedicine is an online clinical medical knowledge base that was founded in 1996. ...
List of bones of the human skeleton Human anatomy is primarily the scientific study of the morphology of the adult human body. ...
An MRI scan of the head. ...
For other uses, see Neck (disambiguation). ...
For other uses, see Throat (disambiguation). ...
The pharynx (plural: pharynges) is the part of the neck and throat situated immediately posterior to the mouth and nasal cavity, and cranial, or superior, to the esophagus, larynx, and trachea. ...
The pharynx is the part of the digestive system of many animals immediately behind the mouth and in front of the esophagus. ...
On either side of the laryngeal orifice is a recess, termed the piriform sinus (or piriform recess), which is bounded medially by the aryepiglottic fold, laterally by the thyroid cartilage and hyothyroid membrane. ...
The Pharyngeal raphe is a raphe that serves as the origin and insertion for several of the pharyngeal constrictors (Inferior pharyngeal constrictor muscle, Middle pharyngeal constrictor muscle, Superior pharyngeal constrictor muscle). ...
The esophagus or oesophagus (see American and British English spelling differences), sometimes known as the gullet, is an organ in vertebrates which consists of a muscular tube through which food passes from the pharynx to the stomach. ...
The larynx (plural larynges), colloquially known as the voicebox, is an organ in the neck of mammals involved in protection of the trachea and sound production. ...
Cartilage is a type of dense connective tissue. ...
The epiglottis is a lid-like flap of fibrocartilage tissue covered with a mucus membrane, attached to the root of the tongue. ...
Adams apple redirects here. ...
The cricoid cartilage, or simply cricoid (from the Greek krikoeides meaning ring-shaped), is the only complete ring of cartilage around the trachea. ...
The arytenoid cartilages are a pair of small pyramid-shaped cartilages, at the upper rear of the larynx, to which the vocal cords are attached. ...
The corniculate cartilages (cartilages of Santorini) are two small conical nodules consisting of yellow elastic cartilage, which articulate with the summits of the arytenoid cartilages and serve to prolong them backward and medialward. ...
The cuneiform cartilages (cartilages of Wrisberg) are two small, elongated pieces of yellow elastic cartilage, placed one on either side, in the aryepiglottic fold, where they give rise to small whitish elevations on the surface of the mucous membrane, just in front of the arytenoid cartilages. ...
In anatomy, the term ligament is used to denote three different types of structures:[1] Fibrous tissue that connects bones to other bones. ...
The Epiglottis is connected with the hyoid bone by an elastic band, the hyoepiglottic ligament, which extends from the anterior surface of the epiglottis to the upper border of the body of the hyoid bone. ...
The hyothyroid membrane (thyrohyoid membrane) is a broad, fibro-elastic layer, attached below to the upper border of the thyroid cartilage and to the front of its superior cornu, and above to the upper margin of the posterior surface of the body and greater cornua of the hyoid bone, thus...
The lateral thyrohyoid ligament (lateral hyothyroid ligament) is a round elastic cord, which forms the posterior border of the hyothyroid membrane and passes between the tip of the superior cornu of the thyroid cartilage and the extremity of the greater cornu of the hyoid bone. ...
The middle thicker part of the thyrohyoid membrane is termed the median thyrohyoid ligament (middle hyothyroid ligament, middle thyrohyoid ligament), its lateral thinner portions are pierced by the superior laryngeal vessels and the internal branch of the superior laryngeal nerve. ...
The cricotracheal ligament connects the cricoid cartilage with the first ring of the trachea. ...
The entrance of the larynx (Fig. ...
The vestibular fold (ventricular fold, superior or false vocal cord) is one of two thick folds of mucous membrane, each enclosing a narrow band of fibrous tissue, the ventricular ligament which is attached in front to the angle of the thyroid cartilage immediately below the attachment of the epiglottis, and...
intrinsic ligaments - lower: Cricothyroid ligament (Median, Lateral/Conus elasticus, Vocal ligament/Vocal folds) | | Laryngeal cavity | Laryngeal inlet • Vestibule • Rima vestibuli • Ventricle • Rima glottidis/Glottis • Infraglottic cavity | | | Triangles of the neck | Anterior of the neck (Muscular, Carotid, Submandibular, Submental) Posterior of the neck (Occipital, Subclavian) The cricothyroid ligament is the larger part of the laryngeal membrane, continuing inferiorly as a median or anterior part and twin lateral ligaments. ...
Enclosed within the vocal folds, there are two strong bands, named the vocal ligaments (inferior thyroarytenoid). ...
The portion of the cavity of the larynx above the vocal folds is called the vestibule; it is wide and triangular in shape, its base or anterior wall presenting, however, about its center the backward projection of the tubercle of the epiglottis. ...
The ventricle of the larynx (laryngeal sinus) is a fusiform fossa, situated between the ventricular and vocal folds on either side, and extending nearly their entire length. ...
The rima glottidis is the opening between the true vocal cords and the arytenoid cartilages. ...
The space between the vocal cords is called the glottis. ...
The infraglottic cavity is the portion of the larynx below the ventricles of the larynx and rima glottidis. ...
Anatomists use the term triangles of the neck to describe the divisions created by the major muscles in the region. ...
The anterior triangle is bounded, in front, by the middle line of the neck; behind, by the anterior margin of the Sternocleidomastoideus; its base, directed upward, is formed by the lower border of the body of the mandible, and a line extending from the angle of the mandible to the...
The inferior carotid triangle (or muscular triangle), is bounded, in front, by the median line of the neck from the hyoid bone to the sternum; behind, by the anterior margin of the Sternocleidomastoideus; above, by the superior belly of the Omohyoideus. ...
The superior carotid triangle (or carotid triangle), is bounded, behind by the Sternocleidomastoideus; below, by the superior belly of the Omohyoideus; and above, by the Stylohyoideus and the posterior belly of the Digastricus. ...
The submandibular triangle (or submaxillary or digastric triangle) corresponds to the region of the neck immediately beneath the body of the mandible. ...
The submental triangle (or suprahyoid triangle) is a division of the anterior triangle of the neck. ...
The posterior triangle (or lateral cervical region) is bounded, in front, by the Sternocleidomastoideus; behind, by the anterior margin of the Trapezius; its base is formed by the middle third of the clavicle; its apex, by the occipital bone. ...
The occipital triangle, the larger division of the posterior triangle, is bounded, in front, by the Sternocleidomastoideus; behind, by the Trapezius; below, by the Omohyoideus. ...
The subclavian triangle, the smaller division of the posterior triangle, is bounded, above, by the inferior belly of the Omohyoideus; below, by the clavicle; its base is formed by the posterior border of the Sternocleidomastoideus. ...
Suboccipital | | Fasciae | Deep cervical fascia (Pretracheal fascia, Prevertebral fascia, Investing layer) • Carotid sheath • Alar fascia pharynx: Buccopharyngeal fascia • Pharyngobasilar fascia The suboccipital triangle is a region of the neck bounded by the following three muscles: Rectus capitis posterior major - above and medially Obliquus capitis superior - above and laterally Obliquus capitis inferior - below and laterally It is covered by a layer of dense fibro-fatty tissue, situated beneath the Semispinalis capitis. ...
The deep cervical fascia (or fascia colli in older texts) lies under cover of the Platysma, and invests the neck; it also forms sheaths for the carotid vessels, and for the structures situated in front of the vertebral column. ...
The prevertebral fascia (or prevertebral layer of cervical fascia) extends medialward behind the carotid vessels, where it assists in forming their sheath, and passes in front of the prevertebral muscles. ...
The investing portion of the fascia is attached behind to the ligamentum nuchæ and to the spinous process of the seventh cervical vertebra. ...
To meet Wikipedias quality standards, this article or section may require cleanup. ...
Palatine aponeurosis | | Spaces | Retropharyngeal space • Danger space • Prevertebral space | Attached to the posterior border of the hard palate is a thin, firm fibrous lamella called the Palatine Aponeurosis, which supports the muscles and gives strength to the soft palate. ...
The buccopharyngeal fascia is attached to the prevertebral layer by loose connective tissue only, and thus an easily distended space, the retropharyngeal space, is found between them. ...
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