Dissection 12 Flashcards
Where is the carotid body located?
The bifurcation of the common carotid artery
What are the anterior arteries of the external carotid artery?
The superior thyroid artery, the lingual artery, and facial artery
What are the posterior arteries of the external carotid artery?
The ascending pharyngeal, the occipital artery, and the posterior auricular artery
What are the terminal arteries of the external carotid artery?
Maxillary and superficial temporal arteries
What artery passes between the anterior and middle scalenes?
The subclavian artery
Where does the left subclavian artery come off of?
Aortic Arch
Where does the right subclavian artery come off of?
Brachiocephalic Trunk
What are the branches of the Subclavian Artery?
Vertebral, Thyrocervical trunk, and internal thoracic trunk
What are the branches of the thyrocervical trunk?
Inferior thyroid, Transvers cervical artery, ascending cervical, and supracapsular artery
What vein runs anterior to the anterior scalene muscle?
The subclavian vein
Where does the thoracic duct collect lymph from
Everywhere except the right head, thorax, and upper limb
What innervates the stylohyoid?
The facial nerve
What innervates the stylopharyngeus?
The glossopharyngeal nerve
Where does the glossopharyngeal nerve exit?
The jugular foramen
What does the branchiomotor branch of CN IX innervate?
stylopharyngeus muscle
What does the general somatosensory branch of CN IX innervate?
posterior 1/3 of the tongue, pharynx, and middle ear
What does the general viscerosensory branch of CN IX innervate?
Carotid body and sinus
What does the special viscerosensory branch of CN IX innervate?
Taste from the posterior 1/3 of the tongue
What does the visceromotor (parasym) branch of CN IX innervate?
Parotid gland
The lesser petrosal comes from which CN and carries what?
CN IX and parasympathetics
Where does the lesser petrosal nerve synapse?
Otic ganglion
Where does the vagus nerve exit the skull?
jugular foramen
What does the branchiomotor branch of CN X innervate?
The larynx, pharynx, and soft palate
What does the visceromotor branch of CN X innervate?
thoracic organs, GI tract, glands of the pharynx and larynx
What does the general somatosensory branch of CN X innervate?
larynx, parts of the pharynx, and the external auditory meatus
What does the special viscerosensory branch of CN X innervate?
Taste from the epiglottis
What does the general viscerosensory branch of CN X innervate?
Thoracic and abdominal organs
What does the internal branch of the superior laryngeal nerve carry?
General somatosensory from the epiglottis to the vocal cords
What does the external branch of the superior laryngeal nerve carry?
Branchiomotor to the cricothyroid muscle
What does the recurrent laryngeal nerve carry?
Branchiomotor to all intrinsic muscles of the larynx (except the cricothyroid) and general somatosensory from the larynx inferior to the vocal cords
Horner’s syndrome results from?
Injury to the superior cervical ganglion and/or the sympathetic pathway to the head
A midline pyramidal lobe is a common remnant of what?
The thyroglossal duct
Remnants of the thyroglossal duct or thyroid tissue can occur where?
Lingual thyroid, thyroglossal cysts, and pyramidal lobe of thyroid
What artery does the superior thyroid artery come off of?
The external carotid artery
Where does the superior laryngeal artery come off of?
The superior thyroid artery
How many parathyroid glands are there?
4
Where does the superior laryngeal artery come from?
External carotid–> superior thyroid–> superior laryngeal
what does the ascending pharyngeal artery supply?
The pharynx, middle ear, and meninges
What does the occipital artery supply?
The scalp and the sternocleidomastoid
What does the posterior auricular artery supply?
The scalp, adjacent muscles, parotid gland and auricle
What are the branches of the thyrocervical trunk?
inferior thyroid, ascending cervical, transverse cervical, and supracapsular
What does the ascending cervical artery supply?
pharynx
What does the transverse artery supply?
muscles that attach to the scapula
What are the sensory ganglia of CN IX
inferior and superior ganglia
