Question

The heart is located in the __________ -- the medial cavity of the thorax. It rests on the superior surface of the _. The heart is enclosed by a double-walled sac known as the _. The _ is the superficial layer of the pericardium that anchors it to surrounding structures. The ____ is the serous membrane layer of the pericardium and is made up of the which lines th internal surface of the pericardium and is continuous w/ the _ or _ which is fused to the wall of the heart. Describe the 3 layers of the heart. Describe the pathways of blood through the heart. _ is the heart sounds associated with the closing of the heart valves. Lub is the sound of the ______ valves closing, and dub is the sound associated with the _ valves closing. __ are abnormal heart sounds. _ is described as cardiac contration, and _ is cardiac relaxation. _ carry blood away from the heart. are smaller dividing branches of arteries. __ are the smallest blood vessels necessary for tissue exchange. _ carry blood toward the heart. _ are the smaller branches of veins. Veins have a system of to prevent back flow.

          The heart is located in the ______________________ -- the medial cavity of the thorax. It rests on the superior surface of the _______________________.
The heart is enclosed by a double-walled sac known as the _______________________. The _______________________ is the superficial layer of the pericardium that anchors it to surrounding structures. The ____________________________ is the serous membrane layer of the pericardium and is made up of the ________________________ which lines th internal surface of the pericardium and is continuous w/ the ___________________ or _________________ which is fused to the wall of the heart.
Describe the 3 layers of the heart.
Describe the pathways of blood through the heart.
_______________ is the heart sounds associated with the closing of the heart valves. Lub is the sound of the ______________________ valves closing, and dub is the sound associated with the _____________________ valves closing. ____________________ are abnormal heart sounds.
_________________ is described as cardiac contration, and _______________ is cardiac relaxation.
_________________ carry blood away from the heart. ________________ are smaller dividing branches of arteries. ______________________ are the smallest blood vessels necessary for tissue exchange. ___________________ carry blood toward the heart. _________________ are the smaller branches of veins. Veins have a system of ________ to prevent back flow.

Added by Samantha F.

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