Landmarks and Normal Anatomy

Question 1

Anterior triangle (borders)

Answer 1

Anterior SCM, anterior midline of neck, inferior mandible

Question 2

Posterior triangle (borders)

Answer 2

Posterior SCM, anterior trapezius, superior clavicle

Question 3

Carotid Bifurcation

Answer 3

C4 (superior border of thyroid cartilage)

Question 4

Bifurcation of internal thoracic vein

Answer 4

6th ICS

Question 5

Normal carinal angle

Answer 5

60-75￁

Question 6

Normal angel of femoral head-neck

Answer 6

126� (115-140�)

Question 7

Boundary of superior mediastinum

Answer 7

Angle of Louis (T4-T5), also site of: aortic arch, tracheal bifurcation

Question 8

Beginning of trachea

Answer 8

C6 (inferior to cricoid cartilage)

Question 9

Auscultatory triangle

Answer 9

Latissimus dorsi, trapezius, medial scapula; floor: rhomboid major

Question 10

Dome of the diaphragm

Answer 10

T10 (L lower than R)

Question 11

Esophageal hiatus

Answer 11

T10 (pierces diaphragm)

Question 12

Celiac trunk

Answer 12

T12 (supplies foregut)

Question 13

Lumbar triangle

Answer 13

Latissimus dorsi, posterior external oblique, iliac crest

Question 14

Superior mesenteric artery

Answer 14

L1 (supplies midgut)

Question 15

Renal artery

Answer 15

L1

Question 16

Termination of spinal cord

Answer 16

L1-L2

Question 17

Horizontal (3rd part) duodenum

Answer 17

L3

Question 18

Inferior mesenteric artery

Answer 18

L3 (supplies hindgut)

Question 19

Union of common iliac arteries

Answer 19

L4-L5

Question 20

Floor/roof of femoral triangle

Answer 20

Iliopsoas and pectineus / Fascia lata

Question 21

Roof of adductor canal

Answer 21

Sartorius

Question 22

Roof of posterior triangle

Answer 22

Platysma, investing deep cervical fascia (floor: splenius capitis, levator scapulae, scalenes)