Slacker’s Guide to Thoracic Gross Anatomy

Prepared by Mike Ori

Caveat Emptor

• As with all slackers guides, I have omitted, condensed, and misunderstood information so don’t complain if I got something wrong, after all, you’re a slacker.

• Also, it goes without saying that the faculty has not vetted the information in any way. Always refer to their notes and lectures for the last word.

CT and Such

• You’re probably best off working on an interactive system try

• http://www.imaios.com/en/e-Anatomy• CPR Radiograph key from Slice-o lecture is

important

Structures from labsArteries and Veins

Ascending aorta (c,r)Aortic Arch (c,r)Brachiocephalic artery (c,r)Right subclavian artery (c)Right common carotid artery (c)Left common carotid artery (c,r)Left subclavian artery (c,r)Descending aorta (c,r)Posterior intercostal arteries (c)Inferior vena cava (c,r)Pulmonary trunk (c,r)Left pulmonary artery (c)Right pulmonary artery (c)Superior vena cava (c,r)Azygous vein (c)Hemiazygous vein (c)Posterior intercostal veins (c)Brachiocephalic veins (c)NervesPhrenic nerve (c)Thoracic sympathetic chain (c)Greater splanchnic nerve (c)Vagus nerve (c)Anterior vagal trunk (c)Posterior vagal trunk (c)Esophageal plexus (c)Left recurrent laryngeal nerve (c)

VisceraEsophagus (c, r)Thoracic duct (c)Trachea (c,r)

BonesRibs (b, r)Sternal Body (b,r)Manubrium (b)Sternal angle (b)Xiphisternum (xiphoid process) (b)

MusclesExternal intercostal (c)Internal intercostal (c)Diaphragm (c)

ArteriesPulmonary artery (c)Subclavian artery (c,r)Internal thoracic artery (c)Anterior intercostals arteries (c)Thoracic (descending) aorta (c,r)Posterior intercostal arteries (c)

VeinsAzygous vein (c)Hemiazygous vein (c)Posterior intercostal veins (c)Pulmonary vein (c)

NervesIntercostal nerves (c)Phrenic nerve (c)

VisceraLungsHorizontal fissure (right only) (c)Inferior lobe (left and right) (c)Middle lobe (right only) (c)Oblique fissure (left and right) (c)Superior lobe (left and right) (c)PleuraParietal pleura (c)Visceral pleura (c)Primary (main) bronchi (c,r)Secondary (lobar) bronchi (c)Superior lobar bronchi (left and right) (c)Middle lobar bronchus (right only) (c)Inferior lobar bronchi (left and right) (c)Trachea (c,r)

These are set out exactly as found in the labs so there are duplicates

Structures from Labs Viscera

Anterior interventricular sulcusChordae tendineaeCoronary sulcusFossa ovalisInterventricular septumLeft atriumOpenings of pulmonary veinsLeft auricleLeft ventricleAortic valveMitral (bicuspid) valvePericardial sacFibrous pericardiumParietal (serous) pericardiumVisceral (serous) pericardium = epicardiumPosterior interventricular sulcusRight atriumCrista terminalisOpening of coronary sinusOpening of inferior vena cavaOpening of superior vena cavaRight auricleRight ventricleModerator bandPulmonary valve Tricuspid valve

MusclesPapillary musclesAnterior papillary muscle – both right and left ventriclesPosterior papillary muscle – both right and left ventriclesSeptal papillary muscle – right ventricle onlyPectinate muscle (right atrium)Trabeculae carnae (ventricles)

VesselsAortaLeft coronary arteryAnterior interventricular arteryCircumflex arteryRight coronary arteryMarginal arteryPosterior interventricular arteryCoronary sinusGreat cardiac veinMiddle cardiac veinSmall cardiac veinLigamentum arteriosumPulmonary trunkPulmonary arteriesPumlonary veins

Heart X-Ray

Manubrium

Sternal body

Xyphoid process

Sternal angle

Right Coronary Artery

Anterior interventricular artery

Right atrium

Right Ventricle

Pulmonary trunk

Left ventricle

Aorta

Superior vena cava

Auricle of LA and RA

Anterior interventricular Sulcus

Right Coronary Artery

Anterior interventricular artery

Right atrium

Right Ventricle

Pulmonary trunk

Left ventricle

Aorta

Superior vena cava

Circumflex artery

Left atrium

Auricle of LA and RA

Great cardiac vein

Posterior interventricular artery

Right atrium

Left ventricle

Inferior vena cava

Left atrium

Coronary sinus

Auricle of Left Atrium

Posterior interventricular sulcus

Great Cardiac Vein

Middle cardiac vein

Right Coronary Artery

Anterior interventricular artery

Right atrium

Right Ventricle

Pulmonary trunk

Left ventricle

Aorta

Superior vena cava

Circumflex arteryLeft atrium

Mitral valve

Great cardiac vein

Left coronary artery

Posterior interventricular artery

Right atrium

Right Ventricle

Left ventricle

Inferior vena cava

Marginal artery

Middle cardiac vein

Right coronary artery

Small cardiac vein

Coronary Sinus

Intercostal Neurovascular bundle

Manubrium

Internal Thoracic A/V

Sternal body

Xyphoid process

Superior Vena Cava

Intercostal A V Post

Ant

Manubrium

Internal Thoracic A/V

Sternal body

Sternal Angle

Intercostal nerve

Right superior lobe

Right middle lobe

Right inferior lobe

Diaphragm

Left superior lobe

Left inferior lobe

Internal thoracic A/V

Aortic Arch

Lingula of Left Lung

Cardiac Notch

Oblique Fissure

Horizontal fissure

Subclavian A/V

Internal Jugular V

Brachiocephalic v

Diaphragm

Left Vagus N (CNX)

Common Carotid A

Sup Vena Cava

Inf Vena Cava

Aortic Arch

Ascending Aorta

Int thoracic A/V

Pulmonary trunk

Subclavian A/V

External Jugular V

Internal Jugular V

Diaphragm

Left Vagus N (CNX)

Common Carotid A

Sup Vena Cava

Inf Vena Cava

Aortic Arch

Ascending Aorta

Esophagus

Pulmonary trunk

Azygos V

Hemiazygos VDescending Aorta

Pulmonary A/V

TracheaLarynx

Brachiocephalic V

Subclavian A.

External Jugular V

Vagus N (CNX)

Pulmonary trunk

Sup Vena Cava

Aortic ArchAscending Aorta

Esophagus

Larynx Trachea

Recurrent Laryngeal of CNX

Common Carotid A.

Brachiocephalic A.

Subclavian A.

External Jugular V

Vagus N (CNX)

Inf Vena Cava

Esophagus

Descending Aorta

azygos V

Larynx

Common Carotid A.

Brachiocephalic A.Hemiazygos V

Recurrent Laryngeal of CNX

Posterior

Note lack of cartilage on posterior trachea

Posterior

Posterior

Larynx

Trachea

Primary (main) Bronchus

Secondary (lobar) bronchus

Tertiary bronchus

Right lung hilar view

Primary bronchus(Be careful with the split here, could be 2o)

Right lung hilar view

Pulmonary artery

Pulmonary vein(ant and inf. most)

Right superior lobe

Right middle lobe

Right inferior lobe

Oblique fissure

Horizontal fissure

Left lung hilar view

Left superior lobe

Left inferior lobe

Oblique fissure

Pulmonary artery

Pulmonary Vein(ant and inf. most)

Left lung hilar view

Primary bronchus(Be careful with the split here, could be 2o)

Renal Cortex

Medullary pyramids

Calyces

Renal pelvis

Just because it could do this.

Urinary bladder

Uterus

Ureter

UrethraPelvic floor muscles

Kidney

The model system didn’t have male anatomy so picture a walnut just below the bladder.

References

• www.visiblebody.com• Netter’s Atlas of Human Anatomy (

www.netteranatomy.com)• http://www.imaios.com/en/e-Anatomy• Dr A’s lecture notes• Dr C’s slides