Section 1
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the glossopharyngeal nerve provides general visceral efferent (parasympathetic innervation) to what?
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Mar 1, 2020
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Section 1
(50 cards)
the glossopharyngeal nerve provides general visceral efferent (parasympathetic innervation) to what?
parotid salivary gland
what is the left subclavian artery a branch of?
arch of the aorta
what two nerves innervate the structures of the pharynx and larynx?
glossopharyngeal nerve (CN IX) and vagus nerve (CN X)
what does the lamina form?
the wide posterior part of the thyroid cartilage
are the suprahyoid muscles arch derived?
yes
what are the functions of the larynx?
- provides an open airway between the pharynx and the trachea - routes food and air into the proper channels - houses the vocal cords, which are important in voice production
pharyngeal constrictor muscles
during swallowing, these muscles contract in sequence, squeezing the slimy bolus into the esophagus
blood supplied to the inferior neck by branches of what?
subclavian arteries
when air passes through the vocal ligaments, what happens?
they vibrate, producing a humming sound that is then modified by the pharynx, tongue, lips, teeth, and nasal cavity to produce the varied sounds of our speech
what do the superior horns articular with?
the greater horns of the hyoid bone
what nerve provides special visceral efferent innervation to the muscles of the pharynx, larynx, and upper esophagus?
vagus nerve
what part of the tongue lies in the oropharynx?
posterior part with its lingual tonsils
what does the epiglottis attach too?
the inferior, internal aspect of the thyroid cartilage
where is the laryngopharynx found?
directly posterior to the larynx and opens into both the esophagus and larynx
the vagus nerve provides special visceral afferent innervation to what?
a few taste buds on the root of the tongue and epiglottis
what is the cricoid cartilage found?
inferior to the thyroid cartilage
auditory (eustachian) tubes
empty into the lateral walls of the nasopharynx
what is the laryngopharynx a common passageway for?
food and air
what are the auditory (eustachian) tubes derived from?
the slit between the first two pharyngeal arches
tension on the vocal ligaments is altered by what?
changing the positions of the thyroid and arytenoid cartilages
what does the epiglottis do during swallowing?
tips inferiorly, sealing the laryngeal inlet and preventing food from entering the larynx
hyoid
small movable bone in the anterior of the neck that consists of a body, lesser horns, and greater horns
what is the oropharynx a common passageway for?
air and food
where do vocal ligaments (vocal cords) stretch from?
arytenoids to the inner surface of the thyroid cartilage
what do the inferior horns articulate with?
the cricoid cartilage
what are the posterior and lateral boundaries of the oropharynx and laryngopharynx composed of?
three partially overlapping pharyngeal constrictor muscles
what is the larynx attached to?
superiorly, via ligaments, to the greater horns of the hyoid and inferiorly to the trachea
what does the vagus nerve provide parasympathetic motor innervation (general visceral efferent) to?
smooth muscle of the gut tube from the lower esophagus to the left colic flexure of the large intestine
where is the oropharynx found?
posterior to the oral cavity between the soft palate and the epiglottis
what type of innervation is provided to the pharynx and larynx by the vagus nerve?
general sensory innervation
what is the thyroid cartilage shaped like?
a shield
during swallowing, what happens to the nasopharynx?
the soft palate and the uvula swing superiorly, closing off the nasopharynx, and preventing food from entering the nasopharynx and nasal cavity
epaxial muscles of the neck receive what kind of innervation?
general somatic efferent from cervical dorsal rami
what type of innervation is provided to a few taste buds on the posterior tongue?
special sensory innervation from the vagus nerve
laryngeal prominence is larger in which gender?
males
pharyngeal tonsils (adenoids)
help to destroy pathogens entering the nasopharynx in inhaled air
the vagus nerve provides general visceral afferent innervation to what?
larynx and lower pharynx as it joins esophagus
the glossopharyngeal nerve provides special visceral efferent innervation to what?
stylopharyngess m
what are the three regions of the pharynx
nasopharynx, oropharynx, and laryngopharynx
what does the skeleton of the neck consist of?
the cervical vertebra and the hyoid bone
the cartilages of the larynx are derived from what?
arches IV-VI
where is the nasopharynx found?
posterior to the nasal cavity, inferior to the sphenoid, and superior to the soft palate
the suprahyoid muscles of the neck receive what kind of innervation?
special visceral efferent from the mandibular nerve and facial nerve
the vagus nerve provides general visceral efferent (parasympathetic) innervation to what?
thoracic viscera and gut tube to left colic flexure
the glossopharyngeal nerve provides special visceral afferent innervation to what?
taste buds on posterior 1/3 of tongue
the vagus nerve provides special visceral efferent innervation to what?
pharyngeal constrictor muscle, laryngeal muscle, and muscles of soft palate
what is the nasopharynx normally a passageway for?
air
the glossopharyngeal nerve provides general somatic afferent innervation to what?
posterior 1/3 of tongue, middle ear, auditory tube, and upper pharynx
what is another name for the laryngeal prominence?
Adam's apple
what to do the arytenoid corniculate cartilages attach to?
the superior surface of each arytenoid cartilage
Section 2
(38 cards)