head neck mouth nose and throat Flashcards
skull
rigid box that protects the brain and is supported by cervical vertebrae
cranial bones
- frontal
- parietal
- occipital
- temporal
sutures
- coronal
- sagittal
- lambdoid
structure and function
facial expressions are mediated by CN VII
facial muscles should be symmetric bilaterally
… palpebral fissures
… nasolabial folds
the facial structures should also be symmetric
1. eyes
2. nose
3. mouth
parotid gland
in the cheeks, mandible, anterior to and below the ear
not normally palpable
stenson’s
submandibular glands
beneath mandible at angle of the jaw
wharton’s
either side of the phrenulum
sublingual glands
lie in the floor of the mouth
8-20 opening
the major neck muscles are innervated by what cranial muscle
CN XI
sternomastoid
enables head rotation and flexion
anterior and posterior triangles
trapezius
moves shoulders and extends and turns head
thyroid gland
synthesizes and secrets thyroxine ( t4) and trilodothyronine ( t3)
the gland has two lobes- connected in middle by a thin ISTHMUS and above that by the cricoid cartilage or upper tracheal ring
Drainage patterns of lymph nodes
lymph nodes are small oval clusters of lymphatic tissue that filter lymph, and engulf pathogens, preventing potentially harmful substances from entering the circulation
greatest supply is in head and neck
location of the lymph nodes
- preauricular
- posterior auricular
- occipital
- submental
- submandibular
- jugulodigastric
- superficial cervical ( anterior)
- posterior cervical
- supracervical
nose
the first segment of the respiratory system
it warms, moistens, and filters, the inhaled air, and it is the sensory organ for smell
nares
the oval openings at the base of the nose