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Notes on video lecture:
Basic Heart Anatomy
Choose from these words to fill the blanks below:
thinner, pericardium, upper, lungs, thymus, thicker, mediastinum, atria, sternum, lungs, thoracic, pulmonary, membranes, sinus, deoxygenated, pulmonary
heart located right below               
between two lungs
in                  cavity
enclosed by a membrane layer called the                       
lungs are also surrounded by membrane layers
it's very common in the body to have organs surrounded by                    which help to anchor the organs in position and protect them
located in the                       
contains the heart, the great vessels of the heart, the esophagus, the trachea, the phrenic nerve, the cardiac nerve, the thoracic duct, and the lymph nodes of the central chest
glandular tissue over the heart
trachea with two branches
esophagus, passes behind the heart
internal of heart
wall: interatria septrum
three vessels that carry                          blood back to the atrium
1. superior vena cava: from            body
2. inferior vena cava: from lower body
3. coronary           : blood from blood vessels from outside the wall of the heart itself
lower: ventricles
wall: interventricular septum
after blood has been in the right atrium, it passes into the right ventricle
contracts the blood into                    trunk
supplies the lungs with the blood to get oxygenated
blood comes back from the            into the left atrium, then down to the left ventricle which pumps it out to the aorta
this is the beginning of the systemic circulation
systemic circulation: oxygenated blood to the body and back
                   circulation deoxygenated blood to the lungs and back
blood returns to the right atrium and the process is repeated
the walls of the atria are                than the walls of the ventricles
because they have to push the blood out of the heart whereas the atria walls just have to push it to the ventricle below it
the walls of the left ventricle are                because it pumps out to the whole body whereas the right only pumps to the           
on an anatomy model, blue vessels carry deoxygenated, in reality this blood is less red, almost purplish
oxygenated blood as a bright red in color


phrenic nerve, n. a nerve that originates in the neck and passes down between the lung and heart to reach the diaphragm, it is important for breathing  "The phrenic nerve is the sole motor supply to each hemidiaphragm."
mediastinum, n. [may-dee-AST-ri-num] region in mammals between the pleural sacs, containing the heart and all of the thoracic viscera except the lungs (vessels of the heart, esophagus, trachea, phrenic nerve, cardiac nerve, thoracic duct, lymph nodes of the central chest)  "Lesions in the posterior mediastinum may encroach on the esophagus, causing dysphagia or odynophagia."
etiology, n. the study of causation, or origination  "With infectious etiologies, a widened mediastinum is a classic hallmark sign of anthrax infection."

Spelling Corrections:



membrane that surrounds the heart
vessel that carries blood back from the upper body back into the heart
superior vena cava
on an anatomy model, blue vessels carry what kind of blood?
blood comes back from the lungs into the left ventricle which pumps it out to the what?
what are the two kinds of circulation?
systemic (oxygenated blood to the body and back), and pulmonary (deoxygenated blood to the lungs and back)
which ventricle has a thicker wall and why?
the left, because it pumps out to the whole body whereas the right only pumps to the lungs
Basic Heart Anatomy