Neck Flashcards
ant vs post triangles
The posterior triangle is largely muscular. The anterior triangle which contains most of the vital structures, can be divided into smaller triangles by muscles.
neck vascular supply
Carotid Artery - bifurcates into:
Internal (intracranial) - no branches in the neck
External (extracranial) - branches: so many
thryoid blood supply
Superior thyroid artery (branch of external carotid)
Inferior thyroid artery (branch of thyrocervical trunk)
Thyroid “ima” artery (variable)
tongue and lips lymph drainage
zone I
tonsils lymph drainage
zone II
naso- and oropharynx, oral cavity, hypopharynx, larynx all drain lymph via
zone III
hypopharynx, subglottic larynx, thyroid, and esophagus all drain lymph via
zone IV
scalp/back of ears drains lymph via
zone V
facial nerve (CN 7) passes through
parotid gland
most common cause of viral salivary gland infection
mumps
occurs in dehydrated, debilitated patients. There is a rapid onset of swelling and fever, with erythema and warmth over the affected gland. You can sometimes see pus coming from the duct. Staph. Aureus is the most common organism
sialadenitis
associated with sudden pain or swelling with eating, relieved by a sudden gush of fluid into the mouth
sialolithiasis
salivary neoplasms
80% occurring in the parotids, and almost 20% occurring in the submandibular glands. Parotid tumors are benign 80% of the time, and malignant 20%. One-half of submandibular tumors are malignant. 80% of minor salivary gland tumors are malignant. The most common site of minor salivary glands is the hard palate
most common benign salivary gland tumor
pleomorphic adenoma, which is also known as mixed tumor
the most common malignant neoplasm of the parotid gland.
Mucoepidermoid carcinoma
