L. Kidney
T12 - L3 vertebrae

R. Kidney
T11 - L4 vertebrae

Sternal Angle (of Louis)
T4/5 IV disc

Superior Angle of Scapula
T2 spinous process

Inferior Angle of Scapula
T7 spinous process

Root of Scapular Spine
T3 spinous process

Jugular notch
T2 vertebral body

2<sup>nd </sup>Costo-sternal joint
Sternal Angle (of Louis)
T4/5 IV disk

Body of Sternum
T5 - T9 vertebrae

Xiphisternal Joint
T9 vertebral body

Xiphoid Process
T9/10 IV disc

Breast
2<sup>nd</sup> - 6<sup>th</sup> ribs

Nipple (males)
4<sup>th</sup> intercostal space (MCL)

Hilum of lung
T5 - T7 vertebrae
(reflexion of pleura)

Costodiaphragmatic Recess
Below 6<sup>th</sup> rib (MCL)
Below 8<sup>th</sup> rib (MAL)

Thoracocentesis (MAL)
9<sup>th </sup>Intercostal space

Beginning of esophagus
C6 vertebra

Beginning of trachea
C6 vertebra

Isthmus of thyroid gland
Overlies 2<sup>nd</sup> - 4<sup>th</sup> tracheal rings

Inferior extent of thyroid lobe
6<sup>th</sup> tracheal ring

Tracheal bifurcation
T4/5 IV disc (TTP)

Manubrium
T3 - T4 vertebrae

Inferior border of superior mediastinum
T4/5 IV disc (TTP)

Apex of the heart
5<sup>th</sup> intercostal space (MCL)

Azygos vein enters SVC
T4/5 IV disc (TTP)

Central tendon of diaphragm (supine)
Xiphisternal junction (T9)

Central tendon of diaphragm (standing)
Xiphoid process 
(T9/10 IV Disc)

Aortic Arch (standing)
TTP (T4/5 IV disc)

Ventricle directly behind sternum
R. Ventricle

Nerve anterior to root of lung
Phrenic n. 
(middle mediastinum)

Nerve posterior to root of lung
Vagus n. 
(middle mediastinum)

Within or superficial to fibrous pericardium
Pericardiacophrenic a.
(middle mediastinum)

Formation of SVC
1<sup>st</sup> costal cartilage
(superior mediastinum)

Brachiocephalic trunk
Anterior to trachea
Posterior to L. Brachiocephalic v.
(superior mediastinum)

Ascension of L. Common Carotid a.
Posterior to L. Sternoclavicular joint
(superior mediastinum)

Ascension of L. Subclavian a.
Lateral to trachea (most posterior)
(superior mediastinum)

Origin of great vessels (e.g. BCT...)
T3/4 IV Disc
(middle manubrium / 1<sup>st</sup> intercostal space)

Transthoracic Plane
<span style="text-decoration:underline;"><strong>T4/5 IV Disc</strong></span>
Aortic arch (standing)
Bifurcation of trachea
Azygos vein enters SVC
Division of sup. / inf. mediastinum
Sternal angle of Louis
2<sup>nd</sup> costo-sternal joint

Caval Foramen
<strong>T8 (central tendon)</strong>
IVC
R. Phrenic n.
Pericardiacophrenic a.

Esophageal Hiatus
<strong>T10 (Muscle)</strong>
Esophagus
Vagus n.

Aortic opening
<strong>T12 (behind diaphragm)</strong>
Thoracic Aorta
Thoracic duct

McBurney's Point
1/3 from ASIS to umbilicus
(pain = appendicitis)

Transpyloric plane
L1 vertebra
(SMA)

Subcostal plane
L3 vertebra
(IMA)

Supracristal plane
L4 vertebra
(bifurcation of aorta)

Transtubercular plane
L5 vertebra
(formation of IVC)

Transumbilical plane
L3/4 IV disc
(umbilicus)