Anatomic Triangles

Question 1

What are the boundaries of the suboccipital triangle?

Answer 1

Rectus Capitis Posterior Major, Obliquus Capitis Superior, Obliquus Capitis Inferior

Question 2

What are the contents of the suboccipital triangle?

Answer 2

3rd part of the vertebral artery, suboccipital nerve and veins

Question 3

What are the boundaries of the carotid triangle?

Answer 3

Superior belly of the omohyoid, SCM, Posterior belly of the digastric

Question 4

What are the contents of the carotid triangle?

Answer 4

CN XI and XII; Carotid sheath including CN X, Common Carotid, Internal Carotid and Jugular; Ansa cervicalis, Lymph nodes

Question 5

What are the boundaries of submandibular triangle?

Answer 5

Inferior ramus of the mandible, Posterior and Anterior belly of the digastric

Question 6

What are the contents of the submandibular triangle?

Answer 6

Facial artery and vein, Submandibular gland, hypoglossal and mylohyoid nerve

Question 7

What are the boundaries of the submental triangle?

Answer 7

Midline of the neck, both anterior bellies of the digastric

Question 8

What are the contents of the submental triangle?

Answer 8

Submental lymph nodes and veins

Question 9

What are the boundaries of the muscular triangle?

Answer 9

SCM, Superior belly of the omohyoid, midline of the neck

Question 10

What are the contents of the muscular triangle?

Answer 10

Strap muscles (sternoclavicular, sternohyoid, thyrohyoid), Thyroid, Trachea, and Larynx

Question 11

What are the boundaries of the posterior cervical triangle?

Answer 11

SCM, Trapezius, Middle 1/3 of the clavicle

Question 12

The posterior cervical triangle is divided by what muscle?

Answer 12

Inferior belly of the omohyoid

Question 13

What two triangles make up the posterior cervical triangle?

Answer 13

Occipital and Supraclavicular

Question 14

What are the boundaries of the triangle of auscultation?

Answer 14

Trapezius, Latissimus Dorsi, Medial border of the scapula

Question 15

What are the boundaries of the lumbar triangle?

Answer 15

Latissimus Dorsi, External Oblique, Iliac crest

Question 16

What are the vessels located in the posterior cervical triangle?

Answer 16

Subclavian, suprascapular, transverse cervical, and occipital artery; subclavian and external jugular vein

Question 17

What are the nerves located in the posterior triangle?

Answer 17

Great auricular, lesser occipital, supraclavicular, transverse cervicial, trunks of the brachial plexus, CN XI

Question 18

What are the boundaries of the inguinal triangle?

Answer 18

Rectus abdominis, Inferior epigastric vessels, inguinal ligament

Question 19

What is clinically important about the inguinal triangle?

Answer 19

Direct hernias pass through it

Question 20

What are the boundaries of the femoral triangle?

Answer 20

Inguinal ligament, adductor longus, sartorius

Question 21

What are the contents of the femoral triangle?

Answer 21

Femoral vein, artery, and nerve

Question 22

What structures lies in the femoral triangle and outside the femoral sheath?

Answer 22

Femoral nerve

Question 23

What is the eponymous name for the lumbar triangle?

Answer 23

Lumbar triangle of Petit

Question 24

What is the eponymous name of the inguinal triangle?

Answer 24

Inguinal triangle of Hesselbach

Question 25

What is the eponymous name of the femoral triangle?

Answer 25

Femoral triangle of Scarpa