TSM 1.32 Flashcards
which muscle divide the anterior and posterior triangle?
sternocleidomastoid muscle
contents of the posterior triangle?
- phrenic nerve
- prevertebral muscles
- roots of brachial plexus
- suprascapular artery
- transverse cervical artery
- apex of lungs
where does teh submandibular duct open?
- either side of frenulum anteriorly
what is the innervation of submandibular gland?
- preganglionic fibres by CN VII
- synapse in submandibular ganglion
- post ganglionic fibres by lingual nerve
what are the branches of the external carotid artery?
- Ascending pharyngeal
- Superior thyroid
- Lingual
- Facial
- Occipital
- Posterior Auricular
- Superficial temporal
- Maxillary
which vein drains superficial face?
- external jugular vein
what are the root values of cervical plexus?
C1-4
which nerve innervates (motor) most of the strap muscles?
- ansa cervicalis
what are the root values of brachial plexus?
C5-8 and T1
which nerve helps to carry innervation from branches of C1?
hypoglossal nerve
glossopharyngeal nerve is sensory to which areas?
- posterior 1/3 tongue
- circumvallate papillae
- pharynx
- inner surface of tympanic membrane
glossopharyngeal nerve is motor to which areas?
stylopharygeus
which nerve is sensory to larynx?
vagus nerve
what are the three ganglion of the sympathetic chain?
- superior cervical ganglion
- middle cervical ganglion
- inferior cervical ganglion
what does the vertebral arteries travel through?
foramen transversarium
what can be damaged during thyroidectomy?
- inferior thyroid artery
- recurrent laryngeal nerve
where is the istmus of the thyroid gland based on cartilage rings?
2nd to 4th tracheal ring
where is the base of the thyroid gland based on cartilage rings?
4th and 5th
what is the blood supply to parathyroid gland?
- inferior thyroid arteries
what does the pharyngeal plexus consist of?
- CN IX
- CN X
- CN XI
- sympathetic nerves
what muscles does pharyngeal branch of vagus nerve innervates?
all muscle of pharynx and soft palate except stylopharyngeus and tensor veli palatini
which nerve innervate stylopharyngeus?
CN IX
which nerve innervate tensor veli palatini?
CN V (mandibular branch)
what is the vagoaccessory complex?
pharyngeal branch of vagus emerge from upper part of inferior vagal ganglion which is derived from cranial accessory nerve
what are the three opening of the pharyngeal wall?
- between superior and middle constrictor
- between middle and inferior constrictor
- below inferior constrictor
what goes between superior and middle constrictor?
- stylopharyngeus
- glosspharyngeal nerve
what goes between middle and inferior constrictor?
- internal laryngeal nerve
- superior laryngeal artery
- superior laryngeal vein
what goes in from below the inferior constrictor?
- recurrent laryngeal nerve
- inferior laryngeal artery
- inferior laryngeal vein
what is the clinical significance of killian’s dehiscence
a weak spot where diverticulum (zenker diverticulum)
what are the longitudinal muscles of pharynx?
- palatopharyngeus
- salpingopharyngeus
- stylopharyngeus
what do the longitudinal muscles do?
elevate pharyngeal wall during swallowing
