THE MEDIASTINUM 1262020 SCNM ANAT 603 The Mediastinum

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THE MEDIASTINUM 12/6/2020 SCNM, ANAT 603, The Mediastinum 1

THE MEDIASTINUM 12/6/2020 SCNM, ANAT 603, The Mediastinum 1

THE MEDIASTINUM • AREA BETWEEN THE TWO PLEURAL SACS. 12/6/2020 SCNM, ANAT 603, The

THE MEDIASTINUM • AREA BETWEEN THE TWO PLEURAL SACS. 12/6/2020 SCNM, ANAT 603, The Mediastinum 2

DIVISIONS • SUPERIOR • INFERIOR T 4 – ANTERIOR – MIDDLE – POSTERIOR 12/6/2020

DIVISIONS • SUPERIOR • INFERIOR T 4 – ANTERIOR – MIDDLE – POSTERIOR 12/6/2020 SCNM, ANAT 603, The Mediastinum 3

SUPERIOR MEDIASTINUM 12/6/2020 SCNM, ANAT 603, The Mediastinum 4

SUPERIOR MEDIASTINUM 12/6/2020 SCNM, ANAT 603, The Mediastinum 4

THYMUS • LYMPHATIC SYSTEM • BASE OF NECK, EXTENDING INTO THE ANTERIOR MEDIASTINUM •

THYMUS • LYMPHATIC SYSTEM • BASE OF NECK, EXTENDING INTO THE ANTERIOR MEDIASTINUM • FUNCTION • INVOLUTION 12/6/2020 SCNM, ANAT 603, The Mediastinum 5

GREAT VESSELS 12/6/2020 SCNM, ANAT 603, The Mediastinum 6

GREAT VESSELS 12/6/2020 SCNM, ANAT 603, The Mediastinum 6

ARCH OF THE AORTA • BRACHIOCEPHALIC ARTERY – R COMMON CAROTID – R SUBCLAVIAN

ARCH OF THE AORTA • BRACHIOCEPHALIC ARTERY – R COMMON CAROTID – R SUBCLAVIAN • L COMMON CAROTID • L SUBCLAVIAN 12/6/2020 SCNM, ANAT 603, The Mediastinum 7

PULMONARY TRUNK • R & L PULMONARY ARTERIES • LIGAMENTUM ARTERIOSUM 12/6/2020 SCNM, ANAT

PULMONARY TRUNK • R & L PULMONARY ARTERIES • LIGAMENTUM ARTERIOSUM 12/6/2020 SCNM, ANAT 603, The Mediastinum 8

SUPERIOR VENA CAVA • LEFT & RIGHT BRACHIOCEPHALIC V – UNION OF INTERNAL JUGULAR

SUPERIOR VENA CAVA • LEFT & RIGHT BRACHIOCEPHALIC V – UNION OF INTERNAL JUGULAR & SUBCLAVIAN VEINS • AZYGOS VEIN (NOT SHOWN) 12/6/2020 SCNM, ANAT 603, The Mediastinum 9

PHRENIC AND VAGUS NERVES 12/6/2020 SCNM, ANAT 603, The Mediastinum 10

PHRENIC AND VAGUS NERVES 12/6/2020 SCNM, ANAT 603, The Mediastinum 10

PHRENIC NERVES • C 3, C 4, & C 5 • LATERAL SURFACE OF

PHRENIC NERVES • C 3, C 4, & C 5 • LATERAL SURFACE OF PERICARDIUM RIGHT LEFT • DIAPHRAGM • PERICARDIOPHRENIC A & V 12/6/2020 SCNM, ANAT 603, The Mediastinum 11

VAGUS NERVES 12/6/2020 SCNM, ANAT 603, The Mediastinum 12

VAGUS NERVES 12/6/2020 SCNM, ANAT 603, The Mediastinum 12

GENERAL • • X CRANIAL NERVE MEDULLA CAROTID SHEATH ENTERS MEDIASTINUM 12/6/2020 SCNM, ANAT

GENERAL • • X CRANIAL NERVE MEDULLA CAROTID SHEATH ENTERS MEDIASTINUM 12/6/2020 SCNM, ANAT 603, The Mediastinum 13

RIGHT VAGUS • ANT TO R SUBCLAVIAN ARTERY – RECURRENT LARYNGEAL • SUPERIOR MEDIASTINUM

RIGHT VAGUS • ANT TO R SUBCLAVIAN ARTERY – RECURRENT LARYNGEAL • SUPERIOR MEDIASTINUM • POST. TO R BRACHIOCEPHALIC V & SVC 12/6/2020 SCNM, ANAT 603, The Mediastinum 14

RIGHT VAGUS (CONT. ) • CARDIAC NERVES • POST. ESOPHYGEAL PLEXUS • EXITS WITH

RIGHT VAGUS (CONT. ) • CARDIAC NERVES • POST. ESOPHYGEAL PLEXUS • EXITS WITH THE ESOPHAGUS 12/6/2020 SCNM, ANAT 603, The Mediastinum 15

LEFT VAGUS • ENTERS THORAX • CROSSES THE AORTIC ARCH – LEFT RECURRENT LARYNGEAL

LEFT VAGUS • ENTERS THORAX • CROSSES THE AORTIC ARCH – LEFT RECURRENT LARYNGEAL N • POSTERIOR TO HILUS • ANT. ESOPHAGEAL PLEXUS 12/6/2020 SCNM, ANAT 603, The Mediastinum 16

CARDIAC PLEXUS • ANT. TO TRACHEA & INF. TO BIFURCATION • RIGHT VAGUS NERVE

CARDIAC PLEXUS • ANT. TO TRACHEA & INF. TO BIFURCATION • RIGHT VAGUS NERVE • SYMPATHETIC NERVES • AUTONOMICS TO HEART AND LUNGS 12/6/2020 SCNM, ANAT 603, The Mediastinum 17

TRACHEA • HYALINE CARTILAGE RINGS • SUPERIOR MEDIASTINUM • BIFURCATES AT LEVEL OF T

TRACHEA • HYALINE CARTILAGE RINGS • SUPERIOR MEDIASTINUM • BIFURCATES AT LEVEL OF T 4 • CARDIAC PLEXUS 12/6/2020 SCNM, ANAT 603, The Mediastinum 18

ESOPHAGUS • MUSCULAR TUBE • BETWEEN TRACHEA & VERTEBRA 12/6/2020 SCNM, ANAT 603, The

ESOPHAGUS • MUSCULAR TUBE • BETWEEN TRACHEA & VERTEBRA 12/6/2020 SCNM, ANAT 603, The Mediastinum 19

THORACIC DUCT • CISTERNA CHYLI TO L SUBCLAVIAN V • BRINGS LYMPH BACK TO

THORACIC DUCT • CISTERNA CHYLI TO L SUBCLAVIAN V • BRINGS LYMPH BACK TO BLOODVASCULAR SYSTEM • CROSSES RIGHT TO LEFT AT T 4 • L SUBCLAVIAN V 12/6/2020 SCNM, ANAT 603, The Mediastinum 20

PREVERTEBRAL MUSCLES • LONGUS COLLI – FLEXES SPINE 12/6/2020 SCNM, ANAT 603, The Mediastinum

PREVERTEBRAL MUSCLES • LONGUS COLLI – FLEXES SPINE 12/6/2020 SCNM, ANAT 603, The Mediastinum 21

ANTERIOR MEDIASTINUM • SMALL IN THE ADULT • LARGE IN INFANTS • THYMUS 12/6/2020

ANTERIOR MEDIASTINUM • SMALL IN THE ADULT • LARGE IN INFANTS • THYMUS 12/6/2020 SCNM, ANAT 603, The Mediastinum 22

MIDDLE MEDIASTINUM • PERICARDIUM & HEART • PHRENIC NERVES 12/6/2020 SCNM, ANAT 603, The

MIDDLE MEDIASTINUM • PERICARDIUM & HEART • PHRENIC NERVES 12/6/2020 SCNM, ANAT 603, The Mediastinum 23

POSTERIOR MEDIASTINUM 12/6/2020 SCNM, ANAT 603, The Mediastinum 24

POSTERIOR MEDIASTINUM 12/6/2020 SCNM, ANAT 603, The Mediastinum 24

DESCENDING AORTA • INTERCOSTAL ARTERIES • BRONCHIAL ARTERIES • BRANCHES – PLEURA – PERICARDIUM

DESCENDING AORTA • INTERCOSTAL ARTERIES • BRONCHIAL ARTERIES • BRANCHES – PLEURA – PERICARDIUM – ESOPHAGUS • PHRENIC ARTERIES (NOT SHOWN) 12/6/2020 SCNM, ANAT 603, The Mediastinum 25

THORACIC DUCT 12/6/2020 SCNM, ANAT 603, The Mediastinum 26

THORACIC DUCT 12/6/2020 SCNM, ANAT 603, The Mediastinum 26

AZYGOS & HEMIAZYGOS VEINS • AZYGOS • HEMIAZYGOS • ACCESSORY HEMIAZYGOS VEIN • LEFT

AZYGOS & HEMIAZYGOS VEINS • AZYGOS • HEMIAZYGOS • ACCESSORY HEMIAZYGOS VEIN • LEFT SUPEME INTERCOSTAL VEIN 12/6/2020 SCNM, ANAT 603, The Mediastinum 27

ESOPHAGUS & PLEXUS • POSTERIOR MEDIASTINUM • DEVIATES TO THE LEFT • EXITS AT

ESOPHAGUS & PLEXUS • POSTERIOR MEDIASTINUM • DEVIATES TO THE LEFT • EXITS AT T 10 • VAGAL PLEXI 12/6/2020 SCNM, ANAT 603, The Mediastinum 28

SYMPATHETIC TRUNK • CHAIN GANGLIA • WHITE AND GRAY RAMI COMMUNICANTES • SPLANCHNIC NERVES

SYMPATHETIC TRUNK • CHAIN GANGLIA • WHITE AND GRAY RAMI COMMUNICANTES • SPLANCHNIC NERVES 12/6/2020 SCNM, ANAT 603, The Mediastinum 29