(popliteal artery) V: vein (popliteal vein) N: nerve (tibial nerve) B: biceps femoris (superior lateral border). The lateral and medial heads of gastrocnemius form the inferior border. Carotid sheath contents I See 10 CC's in the IV:p. 1 I See (I.C.) = Internal Carotid artery 10 = CN 10 (Vagus nerve) CC = Common Carotid artery IV = Internal Jugular Vein Cavernous sinus contents O TOM CAT:p. 1 O TOM are lateral wall components, in order from superior to inferior. CA are the components within the sinus, from medial to lateral. CA ends at the level of T from O TOM. Occulomotor nerve (III) Trochlear nerve (IV) Ophthalmic nerve (V1) Maxillary nerve (V2) Carotid artery Abducent nerve (VI) T: When written, connects to the T of OTOM Vertebral level Diaphragm apertures: spinal levels Many mnemonics are used for diaphragm apertures including: (V)oice (O)f (A)merica number of letters = vertebral level V - vena cava - T8 O - oesophagus - T10 A - aortic hiatus - T12 Vena cava = 8 letters = T8p. 1 Oesophagus = 10 letters = T10 Aortic hiatus = 12 letters = T12 Openings of the diaphragm and structures passing through "I Read, Very Old, And Torn Articles." - (IVC, Right phrenic nerve), (Vagus nerve, Oesophagus), (Aorta, Thoracic duct, Azygos vein). Openings of the diaphragm and structures passing through Caval opening (vena caval foramen) (2: IR): Inferior vena cava, (branches of the) Right phrenic nerve Esophageal hiatus (2: VO): (anterior and posterior) Vagal trunks, Oesophagus Aortic hiatus (3: ATA): (descending) Aorta, Thoracic duct, Azygos vein I ate 10 eggs at 12 I = IVC ate = T8 10 = T10 Eggs = Esophagus At = Aorta 12 = T12 Sternal angle The sternal angle marks the approximate level of the 2nd pair of costal cartilages, which attach to the second ribs, and the level of the intervertebral disc between T4 and T5. In clinical applications, the sternal angle can be palpated at the T4 vertebral level. The sternal angle is used in the definition of the thoracic plane. This marks the level of a number of other anatomical structures. For structures lying at the level of the sternal angle, the following mnemonic can be used: RAT PLLANT Rib 2 Aortic arch Tracheal bifurcation Pulmonary trunk Ligamentum arteriosum Left recurrent laryngeal Azygos Vein Nerves (Cardiac and Pulmonary plexuses) Thoracic duct PLOT of EARTH PLLANTS is a