Anatomic Triangles Flashcards
What are the boundaries of the suboccipital triangle?
Rectus Capitis Posterior Major, Obliquus Capitis Superior, Obliquus Capitis Inferior
What are the contents of the suboccipital triangle?
3rd part of the vertebral artery, suboccipital nerve and veins
What are the boundaries of the carotid triangle?
Superior belly of the omohyoid, SCM, Posterior belly of the digastric
What are the contents of the carotid triangle?
CN XI and XII; Carotid sheath including CN X, Common Carotid, Internal Carotid and Jugular; Ansa cervicalis, Lymph nodes
What are the boundaries of submandibular triangle?
Inferior ramus of the mandible, Posterior and Anterior belly of the digastric
What are the contents of the submandibular triangle?
Facial artery and vein, Submandibular gland, hypoglossal and mylohyoid nerve
What are the boundaries of the submental triangle?
Midline of the neck, both anterior bellies of the digastric
What are the contents of the submental triangle?
Submental lymph nodes and veins
What are the boundaries of the muscular triangle?
SCM, Superior belly of the omohyoid, midline of the neck
What are the contents of the muscular triangle?
Strap muscles (sternoclavicular, sternohyoid, thyrohyoid), Thyroid, Trachea, and Larynx
What are the boundaries of the posterior cervical triangle?
SCM, Trapezius, Middle 1/3 of the clavicle
The posterior cervical triangle is divided by what muscle?
Inferior belly of the omohyoid
What two triangles make up the posterior cervical triangle?
Occipital and Supraclavicular
What are the boundaries of the triangle of auscultation?
Trapezius, Latissimus Dorsi, Medial border of the scapula
What are the boundaries of the lumbar triangle?
Latissimus Dorsi, External Oblique, Iliac crest
What are the vessels located in the posterior cervical triangle?
Subclavian, suprascapular, transverse cervical, and occipital artery; subclavian and external jugular vein
What are the nerves located in the posterior triangle?
Great auricular, lesser occipital, supraclavicular, transverse cervicial, trunks of the brachial plexus, CN XI
What are the boundaries of the inguinal triangle?
Rectus abdominis, Inferior epigastric vessels, inguinal ligament
What is clinically important about the inguinal triangle?
Direct hernias pass through it
What are the boundaries of the femoral triangle?
Inguinal ligament, adductor longus, sartorius
What are the contents of the femoral triangle?
Femoral vein, artery, and nerve
What structures lies in the femoral triangle and outside the femoral sheath?
Femoral nerve
What is the eponymous name for the lumbar triangle?
Lumbar triangle of Petit
What is the eponymous name of the inguinal triangle?
Inguinal triangle of Hesselbach
What is the eponymous name of the femoral triangle?
Femoral triangle of Scarpa
