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Thoracic cavity

second anatomy lecture

parts of the sternum Supreasternal notch, manubrium, sternal angle, body xphoid process
actions of the pectorals major medial rotation of the humorus
nerve that intervates the pectoralous mainor Medial pectoralous nerve
discription of the linia alba line of connective tissue that runes along the anterior surface of the thoracic and abdominal cavities along the midsadgital line
action of the saratous anterior protracts the scapula
scapula bone that alows for the great mobility of the arm
Part of the Ribs head, neck, tubrical, shaft, coastal angle. insertion of the illiocostalis muscle.
scalene tubercle on the 1st rib separating anderior and posterior subclavian grooves
superior thoracic aperture the pathway created by the first rib, aka thoracic outlet
external interrcostals raise the ribs
internal and intermost intercostals lower ribs for forced exhailation
transverse thoracic M starshaped muscle on the posterior side of sturnum.
subcostal muscles muscles that skip a rib on their artuculation
levator costarum elevates ribs articulates on the transverse process superior
inter coastal vesicals VAN give way to the lateral and anterior branch
subcostal nerve just below the 12th rib
interthorasic AV just meddial to the sternum on both L&R
Cephalic V travils through the deltopectoral triangle
subclavian AV just superior to the first rib
suspensory Ligament holds breast
axilary lymph node common places for breast cancer
hilum are of entry to the lung
pulinary ligament fold of the plura
costodiaphragmatic recess area that fills with air or fluid when the plura is compramised
grooves of the lungs superior vena cava azygos vein, cardiac notch, aortic arch
carina first division of the trechea
oblique and horizontal fissure separate the lungs into the lobes
layers of the pericardium Fibrous, parital and viceral
pericardial sinus transverse on the base, oblique on the posterior side(more likley to fill with fluid)
exterior of the heart base, apex, coronary sulcus, auricle,
Pectinate muscle muscles in the atrium that look like the teeth of a comb
crista terminalis where the rough pectinate muscles join together to make a smooth line in the right atrium
fassa ovalis a deprestion in the atrium where the blood could pass from one atrium to the other
tricuspid valve the valve between the right atrium and the right ventrical
infundibulum funnling of the heart in the right ventricle from which the pulmonary artery arises
papillary muscles muscles attached to the valves that divide the atriums from the ventricals.
corde tend



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