L53 Gross Thorax Flashcards
Sternal angle vertebral level
T4, T5
Number of pairs of ribs
True
False
Floating
12 pair
1-7 tru
8-12 false
11-12 floating
head of rib articulates with
Two verebral bodies
One disc
Tubercle articulates with
1 transverse process
Order in costal groove
V
A
N
Internal thoracic artery and vein location
From what to what
2nd to 4th intercostal space
Pectoral lymphatics drain to
parasternal nodes
axillary nodes
Pectoralis minor enveloped in
Clavipectoral fascia
Parietal pleura innervated by
Intercostal and phrenic nerves
Pneumothorax
What is it
Leads to
accumulation of air in pleural cavity –> collapse lung
Hemothorax
What is it
Leads to
Accumulation of blood in pleural cavity
–>Adhesion and infection
Pleurisy
What is it
Leads to
inflammation of pleura
–>adhesions between viseral and parietal
Painful
Pleural tap
Where is it done
Intercostal space between 6 and 7
Midaxillary
Fissures on lungs
Both have oblique (major)
Right has horizontal (minor)
Inferior empty collapsed sleeve w/ few vessels in root of lungs
Pulmonary ligament
Order of trachae to bronchi
Trachae splits into to primary bronchi
Primary bronchi split into 2-3 secondary(lobar)
Secondary split 8-10 tertiary(segmental)
smallest functionally independent region of lungs
Secondary bronchi (segmental)
Secondary bronchi supplied by
supplied by single branch of pumonary artety
Sympathetic trunk contributes to
Function
anterior and posteior pulmonary plexuses
Dilate bronchioles
Vagus passes
Function
posterior
Constrict bronchioles
Location relative to root of lungs
Vagus
Phrenic
Vagus: posterior: applied to trachae, aorta, esophagus
Phrenic: anterior: applied to pericardial sac
Pericardiacophrenic vessels are branches of
Internal thoracic arteries
Brachiocephalic veins
Lymph vesses drain lymph from lungs via
tracheobronchial nodes
R/L bronchomediastinal trunks
Mediastium divisions
Superior Inferior -anterior -middle -posterior
Medistium extends from
thoracic inlet to diaphragm
sternum to 12th thoracic vertebra
Middle mediastinum contains
Pericardium and heart
phrenic nerve to pericardium
Pericardacophrenic vessels
Roots of great vessels to and from heart
Pericardum divisions
Fibrous: attached to diaphragm
Serous: Parietal and visceral layers
Pericardium pierced by
IVC, SVC, Aorta, Pulm trunk, 4 Pulm veins
Cardiac tamponade
compression of heart and roots of great vessels
Cutaneous innervation in pectoral region
Lateral and anterior nerve of 4th-6th intercostal nerves
