Funktionsmodell vom Kehlkopf Functional Model of the Larynx … · GS10 SEIT 1876 Funktionsmodell vom Kehlkopf Functional Model of the Larynx Modele fonctionnel de larynx Modelo de

GS10

SEIT 1876

Funktionsmodell vom Kehlkopf

Functional Model of the Larynx

Modele fonctionnel de larynx

Modelo de funciones de la laringe

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Nummernzusammenstellung:

1. Zungenbein, Os hyoideum2. Schildknorpel, Cartilage thyroidea

3. Ringknorpel, Cartilage cricoidea

4. GieBbeckenknorpel, Cartilage arytenoidea

5. Schildknorpel-Zungenbeinmuskel, M. thyrohyoideus

6. Schildknorpel-Ringknorpelmuskel, M. cricothyroideus

7. Hinterer Ringknorpel-GieBbeckenknorpelmuskel,M. cricoarytenoideus posterior

8. Seitlicher Ringknorpel-GieBbeckenknorpelmuskel,M. cricoartyenoideus lateralis

9. Schildknorpel-GieBbeckenknorpelmuskel, M. thyroarytenoideus

10. Stimmfalte (Plica vocalis), mit Stimmband (Lig. vocale)und Stimmbandmuskel (M. vocalis)

11. Kehldeckel, Epiglottis

12. Luftrohre, Trachea

13. Schildknorpel-Kehldeckelband, Lig. thyroepiglotticum

14. Schildknorpel-Ringknorpelgelenk

15. Kehlkopf von vorn (ventral)

16. Kehlkopf von hinten (dorsal)

Darstellung der Wirkungsweisen der auBeren und inneren Kehlkopfmuskulaturnach Lehrbuch ,,Funktionelle Anatomie des Menschen" von Prof. Dr. J. W. Rohen.

Functional Model of theLarynxmagnified approximately 3 times,in SOMSO-PLAST

The larynx at the entrance of the wind-pipe has two functions:

1. Sealing of the respiratory passagefrom the esophagus (separator po-sition) and

2. voice formation organ.

Its largest cartilage the Cartilago thy-roidea (2) is externally apparent as theAdam's apple and can be felt movingup during the act of swallowing.

The larynx skeleton is made up of theOs hyoideum (1), Cartilago thyroidea (2),Cartilago cricoidea (3), the two Carti-lagines arytenoideae (4) and a numberof smaller pieces of cartilage. The ele-ments of the larynx skeleton are joinedto one another by cords and muscles.

The muscular movement apparatus ofthe larynx performs the function of

voice production and protective functionof the respiratory passage (swallowing).The following are shown in detail:Musculus thyrohyoideus (5), Musculuscricothyroideus (6) - at which one dis-tinguishes between the Pars recta and thePars obliqua, Musculus cricoarytenoi-deus posterior (7), Musculus cricoary-tenoideus lateralis (8), Musculus thyro-arytenoideus (9) and Plica vocalis withLigamentum vocale (10).

Inside the larynx is shown the epiglot-tis (11) with the Ligamentum thyroepi-glotticum (13).

SEIT 1876

The following functionscan be demonstrated:

1. Opening of the Glottis 2. Closing of the Glottis

The pyramid-shaped Cartilage aryteno-idea (4) are joined to the plate of theCartilago cricoidea by a joint whichpermits thrust and rotary movement.Laterally they posses a processus mus-cularis on which the musculus crico-arytenoideus posticus and lateralis actas well as from the front a processusvocalis to which the vocal cord isattached. If one turns the processusmuscularis to the rear, i. e. if the posti-cus (7) contracts, the process! vocalismove outwards (sketch 1) - the glottisopens.

If the two cartilagines arytenoideae ro-tate inwards about their longitudinal axis,i.e. if the lateralis (8) contracts (sketch 2)the process! vocalis move in with thevocal cord - the glottis is closed.

3. Changes in Tensionof the Vocal Cord

can be produced by tilting the cartilagethyroidea against the cartilago crico-idea in the joint (14) outside betweenthe two (sketch 3).

If the musculus cricothyroideus (6)contracts the vocal cord will tension(tilting forwards). By tilting the carti-lago thyroidea to the rear the vocalcord is relaxed.

Fine setting of the vocal cord tensionis effected by the musculus vocalisitself located in the Plica vocalis.

Cartilago thyroidea

Cartilago cricoidea

4. Separator Position

If one tilts the epiglottis (11) down to-wards the cartilago arytenoidea (4) itis possible to demonstrate one of thesealing mechanisms of the respiratorypassage from the isophagus.

List of Members and Numbers:

1. Os hyoideum

2. Cartilage thyroidea

3. Cartilago cricoidea

4. Cartilago arytenoidea

5. Musculus thyrohyoideus

6. Musculus cricothyroideus

7. Musculus cricoarytenoideus posterior

8. Musculus cricoarytenoideus lateralis

9. Musculus thyroarytenoideus

10. Plica vocalis with Ligamentum vocale and musculus vocalis

11. Epiglottis

12. Trachea

13. Ligamentum thyroepiglotticum

14. Cartilago thyroidea - cartilage cricoidea joint

Representation of the principles of operations of the inner and outer larynxmusculature according to Prof. Dr. J. W. Rohen.

Modele fonctionnelde larynx

grossi env. 3 fois, en SOMSO-PLAST

Le larynx situe a I'entree de la trachee-artere a deux fonctions:

1. fermeture du conduit respiratoirecentre le conduit digestif (aiguilla-ge) et

2. organe de la phonation.

Son cartilage le plus important, le car-tilage thyroi'de (2), cartilage thyroidea,est palpable exterieurement - pommed'Adam - et se deplace de fagon sen-sible vers le haut lors de la degluti-tion.

Le squelette du larynx est compose deI'os hyoide (1), os hyoideum du carti-lage thyroi'de (2] cartilago thyroidea, ducartilage cricoide (3), cartilago cricoi-dea, des deux cartilages arytenoides(4), cartilago arytenoidea, et de quel-ques morceaux plus petits de cartilage.Les elements du squelette du larynxsont relies entre eux par des ligamentset des muscles.

L'appareil musculaire moteur du larynxa une fonction de phonation et de pro-tection du conduit respiratoire (il em-peche d'avaler de travers]. Les partiessuivantes sont representees: muscledu cartilage thyroi'de et de I'os hyoide,M. cricothyroideus (5), le muscle ducartilage thyroide et du cartilage cri-coide (6), M. cricothyroideus - danslequel on distingue une partie superfi-cielle, pars recta, et une partie plusprofonde, pars obliqua -, le musclearriere du cartilage cricoide et du car-tilage arytenoide (7), M. cricoarytenoi-deus posterior, le muscle lateral ducartilage cricoide et du cartilage ary-tenoide (8), M. cricoarytenoideus late-ralis, le muscle du cartilage thyroideet du cartilage arytenoide (9), M. thy-roarytenoideus, et le pli vocal, plicavocalis, avec corde vocale, lig. vocale(10).

A I'interieur du larynx, I'epiglotte (11),epiglottis, ainsi que le ligament ducartilage thyroide et de I'epiglotte, lig.thyroepiglotticum (13) sont representes.

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