Head and Neck anatomy Flashcards
mostly innervations
Which branch of the Trigeminal Nerve supplies both afferent and efferent innervations?
The mandibular branch V3
What types of innervation does V1 and V2 of the trigeminal nerve supply?
afferent only
What innervates the muscles of mastication?
the mandibular branch of the trigeminal nerve
Which component, afferent or efferent, of V3 innervates the muscles of mastication?
the efferent
What does the lingual division of V3 provide sensory/afferent innervation to?
floor of the mouth, lingual gingiva, and anterior portion of the tongue.
What does V2 leave the skull from
the foramen rotundum
What does V3 leave the skill through and enter the mandible from?
leaves the foramen ovale and enters through the mandibular foramen
What nerve provides taste and sensation to the BASE of the tongue?
the internal branch of the superior laryngeal nerve (branch of VAGUS)
Which part of the VAGUS, afferent or efferent, innervates the soft palate, pharynx, and larynx
efferent
What is the taste innervation for the anterior 2/3 of the tongue?
the chorda tympani of the facial nerve
What are the soft palate and tonsils innervated by?
lesser palatine nerve
What innervates the trapezius, SCM, soft palate, and pharynx
Accessory nerve (CN 11)
What innervates the posterior 1/3 of the tongue for taste and smell) ?
glossopharyngeal CN 9
What are the muscles of facial expression innervated by?
the efferent division of the FACIAL nerve CN 7.
What are the four muscles of mastication
Masseter, medial pterygoid, lateral pterygoid, and temporalis
What is the action of the Masseter
ELEVATES the mandible
What is the action of the temporalis
ELEVATES and RETRACTS the mandible.
What is the action of the medial pterygoid
ELEVATES the mandible
what is the action of the lateral pterygoid
DEPRESSES the mandible.
What are the branches of the external carotid artery
know FLOSSMAP mnemonic
what kind of gland are all major and minor salivary glands
EXOcrine glands
What is another name for the submandibular gland and what does it secrete?
Warton and it secretes both serum and mucous but MOSTLY SERUM
What is the submandibular and sublingual gland innervated by
the 7th cranial nerve
What is another name for the subLingual gland and what does it secrete
The barthoLin and it secretes mostly mucous
What is the sublingual and parotid gland innervated by
the ninth cranial nerve
What is another name for the parotid gland and what does it secrete?
The Stensen duct and it secretes ONLY serum.
What do minor salivary glands secrete
mucous
What are minor salivary glands innervated by?
Seventh cranial nerve
What are the lacrimal glands innervated by
the seventh cranial nerve
What is the function of lymphatic vessels
they drain the region of their location and communicate with each other as a part of the immune system by work of lymphocytes.
Are lymphatic vessels found in teeth?
yes, in the pulp
where do all nodes of the head and neck drain into
the superior cervical lymph node, EXCEPT the occipital node
Where does the occipital node drain into
the inferior deep cervical node
