Neck Triangles And Conttents

Question 1

boundaries of the anterior triangle

Answer 1

neck midline, inferior border of mandible, anterior border of SCM

Question 2

boundaries of the posterior triangle

Answer 2

anterior border of trapezius, posterior border of SCM, middle third of clavicle

Question 3

boundaries of the muscular triangle

Answer 3

midline of the neck, anterior border of SCM, superior belly of omohyoid

Question 4

contents of the muscular triangle

Answer 4

infrahyoid muscles, superior and inferior thyroid arteries, anterior jugular veins, thyroid and parathyroid glands, larynx, trachea, oesophagus, pharynx

Question 5

boundaries of the carotid triangle

Answer 5

posterior belly of digastric, superior belly of omohyoid, anterior border of SCM

Question 6

contents of carotid triangle

Answer 6

carotid sheath - common carotid artery and bifurcations, internal jugular veins, vagus nerve
hypoglossal nerve

Question 7

boundaries of submandbular triangle

Answer 7

anterior belly of digastric, posterior belly of digastric, inferior border of the mandible

Question 8

contents of the submandibular triangle

Answer 8

submandibular gland (and salivary lymph nodes)
facial artery

Question 9

boundaries of submental triangle

Answer 9

anterior order of digastric, midline of neck, hyoid bone

Question 10

contents of submental triangle

Answer 10

anterior jugular vein, submental lymph nodes

Question 11

boundaries of occipital triangle

Answer 11

posterior border of SCM, anterior border of trapezius, inferior belly of omohyoid

Question 12

contents of occipital triangle

Answer 12

accessory nerve, branches of cervical plexus, uppermost part of brachial plexus, supraclavicular nerve

Question 13

boundaries of subclavian triangle

Answer 13

posterior border of SCM, middle third of clavicle, inferior belly of omohyoid

Question 14

contents of subclavian triangle

Answer 14

subclavian artery and vein, nerve to subclavius muscle, lymph nodes, brachial plexus trunks