Triangles Of The Neck Flashcards
Where is the anterior triangle?
Front of neck
What is the superior border of the anterior triangle?
Inferior border of mandible
What is the lateral border of the anterior triangle?
anterior Sternocleidomastoid
What is the medial border of the anterior triangle?
Sagittal line down midline of neck
What covers the roof of the anterior triangle?
Investing fascia
The muscles in the anterior triangles are divided into where they are in relation to what?
Hyoid bone e.g suprahyoids and infrahyoids
What suprahyoid muscles are there?
Stylohyoid
Digastric
Mylohyoid
Geniohyoid
What infrahyoid muscles are there?
Omohyoid
Sternohyoid
Thyrohyoid
Sternothyroid
What vascular structures and nerves are in the anterior triangle?
Common carotid bifurcates here
IJV
Numerous cranial nerves e.g VII, IX,X,XI,XII
The anterior triangle can be divided into 4 other triangles called..
Carotid triangle
Submental
Submandibular
Muscular
What are the boundaries of the carotid triangle?
Superior - posterior belly digastric
Lateral - medial SCM
inferior - superior belly omohyoid
What lies within the carotid triangle?
ICA bifurcates (carotid sinus also here - baroreceptors)
IJV
Hypoglossal nerve
Vagus nerve
Where is the posterior triangle located?
Lateral part of neck
What are the boundaries of the posterior triangle?
Anterior - posterior border SCM
Posterior - anterior border trapezius
Inferior - middle 1/3 clavicle
What vein lies superficially in the posterior triangle?
External jugular vein
