Term
|
Definition
| small conical pouch that extends from each atria |
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|
Term
| In the sheep heart which sections have thicker walls? |
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Definition
|
|
Term
| What forms the boundary between the left and right ventricles? |
|
Definition
|
|
Term
| What is contained within the interventricular sulcus? |
|
Definition
| Coronary artery and cardiac vein |
|
|
Term
| What is the role of the coronary artery and cardiac vein? |
|
Definition
| supply blood to the tissues of the heart itself |
|
|
Term
| What is the very thin outermost layer of the heart called? |
|
Definition
| visceral pericardium or epicardium |
|
|
Term
| What is the thick muscular layer of the heart? |
|
Definition
|
|
Term
| How does cardiac muscle cells resemble skeletal muscles? |
|
Definition
|
|
Term
| How are cardiac muscle cells different from the skeletal muscle cells? |
|
Definition
| Branched, joined to one another via intercalated discs |
|
|
Term
| What are intercalated discs? |
|
Definition
| intercellular junctions of the cardiac muscle cells |
|
|
Term
| What does branching of the cellsand the intercalated discs form? |
|
Definition
| Interconnected cell network |
|
|
Term
| What is the importance of the interconnected cell network? |
|
Definition
| Rapid spread of action potential allowing all areas of a heart chamber to contract virtually simultaneiously |
|
|
Term
| How long does it take the cardiac cycle to complete? |
|
Definition
|
|
Term
|
Definition
| contractoin of the two atria |
|
|
Term
|
Definition
| contraction of the two atria |
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Term
|
Definition
| long period of relaxation after contraction |
|
|
Term
| What is ventricular systole? |
|
Definition
| contraction of the ventricles |
|
|
Term
|
Definition
| Atrial contraction pushes blood into ventricles |
|
|
Term
|
Definition
| Ventricles begin contracting |
|
|
Term
|
Definition
| AV valves are pushed closed by back flowing blood |
|
|
Term
| What creates the "lub" sound? |
|
Definition
|
|
Term
|
Definition
| Contraction of ventricles pushes blood into two arteries |
|
|
Term
|
Definition
| Blood is propelled from left ventricle into aorta |
|
|
Term
|
Definition
| Blood from right ventricle is pushed into the pulmonary trunk |
|
|
Term
|
Definition
|
|
Term
|
Definition
| Ventricles and Atria in diastole |
|
|
Term
|
Definition
| Semilunar valves prevent backflow into ventricles |
|
|
Term
| What produces the "dup" sound? |
|
Definition
| Closing of the semilunar valves |
|
|
Term
|
Definition
| narrowing of teh opening of the valve |
|
|
Term
| What is the Korotkoff sound? |
|
Definition
| When blood flow is turbulent and creates a soft sound |
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