Term
Biological Functions of the Laryngeal System |
|
Definition
- prevent air escaping fom the lungs
- keep food out of the air way
- clearing the throat
- assist with heavy lifting
|
|
|
Term
Non-Biological functions of the Laryngeal System |
|
Definition
|
|
Term
Location and Landmarks of The Larynx |
|
Definition
- thyroid notch
- hyoid bone
- trachea
|
|
|
Term
Location and Function of the Hyoid Bone |
|
Definition
- part of the axial skeleton, butnot attached to any other bones in the body
- Supports tht root of the tongue
- larynx id suspended from this bone
- 22-3 muscles attached
- parts
- body (corpus)
- greater hornes (cornua)
- lesser horner (cornua)
- location: level with the C3 vertebra
|
|
|
Term
|
Definition
- 9 total
- Corniculate cartilages (2)
|
|
|
Term
|
Definition
- largest of the laryngeal cartilages
- two laminae fused together aling the midline
- thyroid notch is above the anteior projection of the larynx
- superior and inferior hornes on the posterior of the thyroid
|
|
|
Term
|
Definition
- composed of hyaline cartilage
- located directally above the first tracheal ring
- forms the lower frame work of the larynx
- Anterior Arch: the front of the larynx
- Posterior Arch: occupies the space between the posterior margine of the thyroid
- Diarthrodial joint: joint permitting the cricoid and thyroid cartilages to rotate about an axis
|
|
|
Term
|
Definition
- paired
- located on the border of the cricoid cartilages
- resemble three sided pyramids: base, apex, 3 surfaces
- muscular process: located on the posterior angle, and extends in the lateral direction
- articuates with the cricoid process
- important for laryngeal muscle atteachment
- vocal process: located on the atnterior angle, and is the point of attachment for the vocal ligament
|
|
|
Term
The Corniculate Cartilage
|
|
Definition
- small conical elastic cartilages
- No spicific function in humans
|
|
|
Term
|
Definition
- located behind he hyoid bone and the oot of the tongue
- attached to the thyroid cartilage in the inside, below the thyroid notch
- prevents food from entering the larynx when swallowing
|
|
|
Term
|
Definition
- located within the aryepiglottic folds
- wedg shaped rods
|
|
|
Term
|
Definition
- Cricoarytenoid joint
- Cricothyroid joint
|
|
|
Term
|
Definition
- located between the Cricoid and Arytenoid cartilages
- saddle joint
- allows for movement between the cataliges
- cuses the vocal processes to adduct and abduct
- also plays a role in deep breathing, speech and coughing
|
|
|
Term
|
Definition
- Located between the Cricoid and Thyroid joints
- allows either the cicoid orthyroid cartilages to move
- rotation changes the tention of the vocal folds, and thus the pitch of voice
|
|
|
Term
Laryngeal Membranes and Ligaments |
|
Definition
- Extrinsic
- Hyothyroid
- hyoepiglottic
- Cricotracheal
- Intrinsic
- conus elasticus
- quadangular
|
|
|
Term
Extrinsic Membranes and Ligaments
of The Larynx |
|
Definition
- Hyothyroid
- located between the hyoid bone and the thyroid cartilage
- Hyoepiglottic
- located between the hyoid bone and the epiglottis
- Criotrcheal
- located between teh Crico cartilage and the first tracheal ring
|
|
|
Term
Intrinsic Membranes and Ligaments
of the Larynx |
|
Definition
- Conus elasticus
- located betweent he superior border of the arch and the lamina of the cicoid catilage to the upper limmits of the true vocal folds
- bounded by the thyroid, cricoid, and arytenoid cartilges
- Qudrangular membrane
- located between the aryepiglottic folds and the false (venticular) vocal folds
|
|
|
Term
| What lines the innermost surface of the larynx? |
|
Definition
|
|
Term
|
Definition
| The opening into the larynx |
|
|
Term
|
Definition
The space between the aditus and the false vocal folds (ventricular folds) |
|
|
Term
|
Definition
| The space between the true and false vocal folds |
|
|
Term
|
Definition
The space between the two true vocal folds |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
Extrinsic Muscles of the Larynx
|
|
Definition
- have one mscle attachment outside of the larynx
- they suport and fix the larynx
- Sternohyoid
- thyrohyoid
- Inferior pharyngeal constrictor
|
|
|
Term
|
Definition
- Origin: the posterior surface of teh manubrium of the sternum
- Insertion: the obique line of the thyoid cartilage
- Function: provides some pull to hold the larynx in its downward position
|
|
|
Term
|
Definition
- Origin: the oblique tendon or line of the thyroid
- Insertion: the lower boarder of the greater horn of the hyoid
- Function: decrease the distance between the thyroid cartilage and the hyoid bone
|
|
|
Term
| Inferior Pharyngeal Constrictor |
|
Definition
- extends from the bse of the skull to the lower boarder of the cricoid, where ti becomes continuous with the esophagus
- play a role in swallowing
- forms an impotant esonating cavity of he vocal mechanism
|
|
|
Term
| Supplamenal Laryngeal Muscles |
|
Definition
- Suprahyoid muscles: laryngeal elevators
- Digastric
- Stylohyoid
- Mylohyoid
- Geniohyoid
- Hyoglossus
- Genioglossus
- Inferior Laryngel Muscles: laryngeal depressors
|
|
|
Term
|
Definition
- origin: hyoid bone
- insertion: two bellies: attach to the mandible and the
- function: moves larynx in and upward direction
|
|
|
Term
|
Definition
|
|
Term
|
Definition
- origin: the boney ridge along the inside of the mandible
- insertion: hyoid bone
- function: can elevate the hyoid bone, floor of the mouth, and tongue
- plays an important role in chewing and swallowing
|
|
|
Term
|
Definition
- Origin: the lower portion of the mentl symphasis
- Insertion: the anterior surface of the body of teh hyoid bone
- Function: pulls the hyid upward and forward
|
|
|
Term
|
Definition
- extrinsic muscle of the tongue
- Function: may influance the larynx
|
|
|
Term
|
Definition
- extrinsic muscle of the tongue
- Function: may influance the larynx
|
|
|
Term
|
Definition
- Origin: Sternum
- Insertion: Hyoid bone
- Function: moves the larynx downward
|
|
|
Term
|
Definition
- Origin: scapular
- Insertion: hyoid bone
- two pieces
- Function: lower the larynx
|
|
|
