30 Questions
What muscle forms the floor of the submental triangle?
Mylohyoid muscle
Which structure does the submandibular triangle contain?
Facial artery
What forms the boundaries of the carotid triangle?
Anterior border of sternocleidomastoid, superior belly of omohyoid, and posterior belly of digastric muscles
Which muscle forms the floor of the muscular triangle?
Mylohyoid muscle
Which nerve is found within the submandibular triangle?
Lingual nerve
Which vessel is part of the contents of the carotid triangle?
Common carotid artery
What is the primary action of the scalenus anterior muscle when acting unilaterally?
Bends the neck laterally
Where does the common carotid artery originate on the left side of the body?
Aortic arch
Which of the following is a branch of the external carotid artery?
Superior thyroid artery
Where is the carotid glomus (chemoreceptor) located?
Posterior to the bifurcation of the common carotid artery
What is the chief extracranial tributary of the internal jugular vein?
Facial vein
Where does the subclavian vein join the internal jugular vein to form the brachiocephalic vein?
At the lateral border of the first rib
What structures are found in the occipital triangle of the lateral region of the neck?
Scalenus anterior, scalenus medius, scalenus posterior
What divides the lateral region of the neck into occipital and supraclavicular triangles?
Inferior belly of omohyoid
Which structures are found within the supraclavicular triangle?
Subclavian vein, subclavian artery, brachial plexus
What is the floor of the occipital triangle made up of in the lateral region of the neck?
Prevertebral fascia and scalenus muscles
Which nerve emerges above the middle of the posterior border of sternocleidomastoid and crosses the occipital triangle to trapezius?
Accessory nerve
What boundaries define the lateral region of the neck?
Posterior border of sternocleidomastoid, anterior border of trapezius, middle third of clavicle
Which vein is formed behind the angle of mandible by the union of posterior auricular, posterior branch of retromandibular, and occipital vein?
External jugular vein
Where do the anterior cervical lymph nodes lie?
Near the sternocleidomastoid muscle
Which lymphatic vessels do the deep lateral cervical lymph nodes receive lymph from?
Head and neck
Where does the right lymphatic duct end by entering?
Right venous angle
Which structures does the thoracic duct receive just before termination?
Left jugular, subclavian, and bronchomediastinal trunks
Where do the cutaneous branches of the cervical plexus emerge to supply skin?
Around the middle of the posterior border of sternocleidomastoid
Which muscle hooks around the external carotid artery before entering the tongue?
Hyoglossus
Which part of the sympathetic trunk is formed by superior, middle, and inferior cervical ganglia?
Cervical part of sympathetic trunk
What is the boundary of the lateral region of the neck superiorly?
Superior nuchal line
Which triangle in the neck contains the submandibular gland?
Carotid triangle
Which nerve is not found in the superficial fascia of the neck?
Cervical branch of facial nerve
Which vessel lies on the hyoglossus muscle before entering the tongue?
External carotid artery
Learn about the anatomy of the submental and submandibular triangles, including their boundaries, coverings, floors, and contents. Understand the structures that define these important anatomical regions.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
