Nasal Cavity, Sinuses, and Neck Flashcards
What surrounds nasal cavity
orbits, oral cavity, anterior cranial fossa, paranasal sinuses
regions within nasal cavity from superior to inferior
Spheno-sigmoidal recess, superior meatus, middle meatus, inferior meatus
Bones separating region in nasal cavity
superior, middle, and inferior concha
where is the spheno-sigmoidal recess?
above the superior concha
Types of broken noses
can be bones, separation of cartilage from bone, or just a break in cartilage
where is olfactory region?
spheno-sigmoidal recess
Important things in middle meatus
Ethmoid bulla and semilunar hiatus
Branches of V1 and V2 supply sensation from ____
inner nose
nerves within nose
V1, V2, and olfactory
Does nasal cavity have rich or poor vascular supply?
RICH
sinuses
spaces within bone of face lined with mucosa (ant to post: frontal, ethmoidal, sphenoid)
How are sinuses protective?
they can crumple but the impact won’t reach more important things behind them
frontal sinus drains to ___
frontonasal duct into semilunar hiatus (in middle meatus)
maxillary sinus drains to ___
maxillary ostium into semilunar hiatus (in middle meatus)
sphenoid sinus drains to ___
spheno-ethmoidal recess
anterior ethmoid air cells drain to ___
frontonasal duct into semilunar hiatus (in middle meatus)
middle ethmoid air cells drain to ___
middle meatus (cells form ethmoid bulla)
posterior ethmoid air cells drain to ___
superior meatus
basic components of muscles of neck
SCM, trapezius, posterior triangle, anterior triangle
compartments in neck from anterior to posterior
visceral, vascular, vertebral
boundaries of anterior triangle
- SCM
- Inferior border of mandible
- Midline of neck
boundaries of posterior triangle
- SCM
- Trapezius
- Clavicle
Triangles within anterior triangle
carotid, muscular, submandibular, submental triangles
How are sub-triangles within anterior triangles subdivided?
digastric and omohyoid muscles
boundaries of carotid triangle
SCM, posterior belly digastric,
superior belly omohyoid
Boundaries of muscular triangle
SCM, superior belly omohyoid,
hyoid bone, midline of neck
Boundaries submandibular triangle
anterior belly digastric, posterior
belly digastric, mandible
boundaries of submental triangle
right and left anterior bellies of
digastric, hyoid bone
Omohyoid connects what bones?
hyoid to scapula in shoulder
contents within carotid triangle palpated in physical exam
Carotid sheath
Palpate carotid pulse between anterior
border of SCM and larynx
contents within muscular triangle palpated in physical exam
thyroid
contents within submandibular triangle palpated in physical exam
submandibular gland, lymph nodes
contents within submental triangle palpated in physical exam
lymph nodes
Sub-triangles of posterior triangle
occiptal and omoclavicular (subclavian) triangle
occipital triangle boundaries
SCM, trapezius,inferior belly of
omohyoid
Contents of occipital triangle
Trunks of brachial plexus; accessory
nerve (CN XI); cervical lymph nodes
omoclavicular triangle boundaries
SCM, clavicle, inferior belly
omohyoid
Omoclavicular triangle contents
Subclavian artery and vein;
supraclavicular lymph nodes
What do physicians use to numb entire arm?
brachial plexus
suprahyoid muscles
stylohoid, digastric, mylohyoid and geniohyoid (superior to mylohyoid)
infrahyoid muscles (strap muscles)
thyrohyoid, omohyoid, sternothyroid, sternohyoid
access points for central lines
internal jugular and subclavian veins
