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52 Cards in this Set
- Front
- Back
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left brachicephalic
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from in root of neck from internal jugular vein and subclavian vein
posterior to posterior end of clavicle has to get past the midline |
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right brachiocephalic vein
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from in root of neck from internal jugular vein and subclavian vein
posterior to posterior end of clavicle |
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superior vena cavae
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formed by two brachiocephalic veins
posterior to costal cartilage of first rib...goe sto superior aspect of right atrium. enters posterior to costal cartilage of right 3rd rib |
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inferior vena cavae
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travels through caval foramen
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azygous vein
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unites with posterior side of SVC
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thoracic aorta
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divided into:
ascedning aorta aortic arch descending thoracic aorta |
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aortic arch path
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ascends and moves to the right. the arch then moves posteriorly and to the left
crosses the sternal angle - marks where arch turns to thoracic aorta limited to superior mediastinum |
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branches of arch of aorta
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ascending aorta
L common carotid artery L subclavian artery |
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branches of ascending arch
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L and R coronary arteries
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brachiochephalic
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divides to R common carotid and right subclavian artery
supplies blood to R side of head, neck, upper limb |
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L common carotid artery
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left side of head and neck
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left subclavian artery
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left upper limb...to axillary artery
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descending thoracic aorta
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turns to abdominal aorta posterior to diaphragm
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descending thoracic aorta
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posterior intercostal artery branches...bulk of supply to intercostal space!
esophageal branches usually bronchial arteries supply to fibrous pericardium |
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pulmonary trunk
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divides to L and R pulmonary arteries to respective lungs.
begins at apex of R ventricle. |
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cardiovascular shadow/silhouette
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can see L margin of pulmonary trunk in xray
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ligamentum arteriosum
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b/w root of L pulmonary artery and arch of aorta
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ductus arteriosus
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in fetus, it shuts blood from pulmonary trunk into the underside of arch of aorta. to bypass lungs.
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posterior side of heart
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formed by pulmonary veins. L, R, each of which have superior and inferior sections
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pericardium
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has two pericardia: fibrous and serous
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serous pericardium
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parietal layer (behind fibrous pericardium), visceral layer (on heart)...and pericardial cavity
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fibrous pericardium
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outer layer that covers the heart
continuous of adventitial layer of great vessels fuses with central tendon and tethers to sternum |
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pericardium in CT
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fibrous
parietal visceral |
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epicardium
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all above myocardium
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anatomical orientation of long axis of heart
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apex points to left
anteriorly inferiorly |
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L and R of heart
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don't reflect anatomical position
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external surfaces of heart
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sternocostal - faces sternum and costal cartilates
apex diaphragmatic posterior |
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sternocostal surface of heart
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faces sternum and costal cartilages
RA, RV, LV |
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apex
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lower left extreme...
MOSTLY LV |
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diaphragmatic surface
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inferior surface...
RV and LV |
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posterior surface
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apposite to apex...
mostly LA, some RA |
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right border of heart
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right atrium
can see in xray |
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left border
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mostly LV
some apex some LA via left auricle can see in xray |
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inferior border
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prominent edge of transition b/w sternocostal and diaphragmatic surfaces of RV.
can't see in PA/AP films |
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heart valves
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prevent retrograde flow. at entrances to, or exits from...ventricles
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AV valves
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tricuspid (3) and mitral (2) valves
papillary muscles and chordae tendineae hold the valve at its cusp |
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semilunar valves
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3 cusps
pulmonary valve, aortic valve no chordae tendieae or papillary muscles |
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right atrium anterior wall
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cardiac fibers called pectinate muscles
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right auricle
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in R atrium
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crita terminalis
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longitudinal ridge that separates anterior and posterior walls of right atrium
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fossa ovalis/oval fossa
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was opening in fetal heart b/w R and L atria
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right atrium
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SVC opening
coronary sinus opening (venus return of heart) |
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posterior wall of R atrium
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interatriual septum
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right atrium anterior wall
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cardiac fibers called pectinate muscles
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right auricle
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in R atrium
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crita terminalis
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longitudinal ridge that separates anterior and posterior walls of right atrium
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fossa ovalis/oval fossa
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was opening in fetal heart b/w R and L atria
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right atrium
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SVC opening
coronary sinus opening (venus return of heart) |
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posterior wall of R atrium
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interatriual septum
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right ventricle
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cusp of pulmonary valve
infundibulum - upper aspect of R ventricle. smoother than the, called trabeculae carnea |
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left atrium
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smooth, boring
left auricle: some pectinate muscles cusp of bicuspid valve interatrial septum |
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left ventricle
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much thicker wall
cusp of aortiv valve chorda tendinae papillary muscle cusp of mitral valve |
