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Neck and Larynx
Terms in this set (52)
transverse formina are found where?
what travels up the transverse foramina?
T/F: the hyoid bone does not articulate with any other bones
true; suspended by ligaments
T/F: thyroid cartilage is inferior to the cricoid cartilage
false; cricoid is inferior to thyroid cartilage
what allows the platysma muscle to slide around?
•Shortening of the sternocleidomastoid m.
•Pulls ear toward ipsilateral shoulder and points chin toward contralateral side
•Congenital or acquired
•Can be caused by fibrous tumor within muscle or hematoma and scarring
Torticollis (Wry Neck)
muscles above the hyoid
Digastric (posterior belly)
muscles below the hyoid
sternohyoid, omohyoid, sternothyroid, thyrohyoid
hyoid moves __________ during swallowing
muscle that connects from manubrium of sternum > hyoid bone
connect the shoulder to the hyoid
suprahyoid muscles ____________ the hyoid
infrahyoid muscles _____________ the hyoid
•Hypertrophy of scalene muscles
•Type of thoracic outlet syndrome
•Results in numbness or tingling of the upper extremity and pallor and coldness of the skin of the upper extremity
•Can be caused by overuse, poor posture, or repetitive trauma
Scalene Compression Syndrome
runs vertically over SCM and drains retromandibular vein in the face
external jugular vein
loop of a nerve that is primarily motor but also has sensory fibers
•Superior thyroid a.
•Ascending pharyngeal a.•Lingual a.
•Posterior auricular a.
•Superficial temporal a.
landmark to find the hypoglossal n.
external carotid from a lateral view is more ____________ than the internal carotid
Used to:Administer medications, fluids, blood, nutrients directly into the bloodstream
thyroid gland is anterior to ______________ and posterior to __________________________
upper tracheal rings; sternothyroid muscle
Embryological remnant of the thyroglossal duct. Present in about 50% of thyroid glands; varies in size; extends superiorly from isthmus to left of median plane. Isthmus may be incomplete.
Pyramidal lobe of thyroid gland
shield to our vocal cords
lamina of thyroid cartilage
the hollow muscular organ forming an air passage to the lungs and holding the vocal cords in humans and other mammals; the voice box.
Two small cartilages in the larynx, the movements of which abduct and adduct the vocal folds.
space btw posterior tongue & epiglottis
vocal cords are closed during:
phonation & swallowing
T/F: vocal folds are closed during respiration
laryxn muscles are all innervated by branches of __________________
recurrent larygneal n.
Site of aspirated lodged fishbone
the only muscle that abducts the vocal ligaments (forced respiration)
Posterior cricoarytenoid m
Relaxes vocal ligaments = lower pitch, also fine tunes
What procedures might affect the recurrent laryngeal n.?
provides sensation above vocal cords
internal laryngeal n
innervates the cricothyroid m
External laryngeal n.
provides sensation below vocal cords & innervates all intrinsic laryngeal mm.
recurrent larygneal n.
Injury to superior laryngeal nerve:
- Loss of sensation (internal laryngeal n.) from superior larynx and piriform recess - deactivates the cough reflex- Paralysis of the cricothyroid muscle (external laryngeal n.)
- low-pitch, monotonous voice because vocal cords cannot be tensed
Injury to the recurrent laryngeal nerves:
- Inability to abduct, adduct and relax the vocal cords - hoarseness and difficulty breathing because the cords cannot be widely abducted
- Inability to close the laryngeal inlet during swallowing - aspiration of food into the trachea
the swollen, pink/red vocal folds
Cause: Typically viral or bacterial, but may have noninfectious causes - vocal strain from excessive use, smoking, laryngeal trauma
Hoarseness, dry and painful throat, coughing (from irritation)
Antibiotics, corticosteroids (inflammation), vocal rest
The surgical procedure in which an opening is made in the trachea and a tube is passed through to allow for ventilation
when are tracheotomy's indicated?
during upper airway obstruction, trauma to upper airway
where are tracheotomies usually done?
Typically between 2nd and 3rd tracheal rings
surgical opening connecting an area inside the body to the outside
surgical opening in the trachea (between the tracheal rings)
u do a tracheostomy for a tracheotomy
T/F: tracheostomy's are permanent or semi-permanent
indicated when someone is choking (emergency situation) and airway cannot be secured
•Insert tube through cricothyroid membrane
•Use to ventilate temporarily
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