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Thoracic cavity
second anatomy lecture
| Question | Answer |
|---|---|
| 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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