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larynx
- position
- located within the anterior aspect of the neck, anterior to the inferior portion of the pharynx and
superior to the trachea
- located within the anterior aspect of the neck, anterior to the inferior portion of the pharynx and
superior to the trachea
- function
- Its primary function is to protect the lower airway and preventing the entry of foreign matter into it
Other functions of the larynx include the production cartilages of sound (phonation)
- Its primary function is to protect the lower airway and preventing the entry of foreign matter into it
Other functions of the larynx include the production cartilages of sound (phonation)
- Joints
- cricothyroid
- cricoarytenoid
- cricothyroid
- cartilages
- 3 paired
cartilages
- cuneiform
- corniculate
- arytenoid
- cuneiform
- 3 unpaired
cartilages
- thyroid
- cricoid
- epiglottis
- thyroid
- 3 paired
cartilages
- Membranes
- Thyrohyoid
- Quadrangular membrane
- Conus Elasticus
- Thyrohyoid
- structure
- musculocartilaginous
structure
- musculocartilaginous
structure
- Ligaments
- Cricotracheal
- Thyrohyoid ( lateral & median )
- Hyoepiglottic
- Thyroepiglottic
- Cricothyroid ( lateral & median )
- Cricotracheal
- blood supply
- inferior artery
- originates from : the inferior thyroid
branch of the thyrocervical trunk
- It ascends into : with the
recurrent laryngeal branch
of the vagus
- It ascends into : with the
recurrent laryngeal branch
of the vagus
- originates from : the inferior thyroid
branch of the thyrocervical trunk
- superior artery
- originates from : superior thyroid
branch of the external carotid
artery
- enters the larynx with the internal
branch of the superior laryngeal
nerve
- enters the larynx with the internal
branch of the superior laryngeal
nerve
- originates from : superior thyroid
branch of the external carotid
artery
- inferior artery
- nerve supply
- the superior branch of
the vagus nerve
- the recurrent laryngeal
branch of the vagus nerve
- the superior branch of
the vagus nerve
- Muscles
- Intrinsic Muscles
- Auxiliary Musculature.
- Aryepiglotticus
- Thyroarytenoid
- Thyrepiglotticus
- Superior thyroarytenoid
- Aryepiglotticus
- Relaxers
- Adductors.
- Lateral Cricoarytenoid
- Oblique Arytenoid
- Transverse arytenoid
- Lateral Cricoarytenoid
- Tensors.
- Thyrovocalis
- Cricothyroid
- Thyrovocalis
- Abductors.
- Auxiliary Musculature.
- Extrinsic Muscles
- Hyoid and Laryngeal Depressors.
- Sternohyoid:
- Sternothryoid
- Omohyoid
- Thyrohyoid
- Sternohyoid:
- Hyoid and Laryngeal Elevators.
- Genioglossus
- Geniohyoid
- Digastric muscle
- Stylohyoid muscle
- Mylohyoid
- Hyoglossus
- Genioglossus
- Hyoid and Laryngeal Depressors.
- Intrinsic Muscles
- cavities
- vestibule
- is the upper portion of the cavity,
in between the laryngeal inlet and the vestibular folds.
- is the upper portion of the cavity,
in between the laryngeal inlet and the vestibular folds.
- middle
- The middle portion of the cavity, is formed by the vestibular
folds above and the vocal folds below.
- The middle portion of the cavity, is formed by the vestibular
folds above and the vocal folds below.
- infraglottic space
- is the lower portion of the cavity, in between the vocal
folds and inferior opening of the larynx into the
trachea.
- is the lower portion of the cavity, in between the vocal
folds and inferior opening of the larynx into the
trachea.
- vestibule
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