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UNF Patho 22
Structure and Function of the Cardio and lymph sytems
18
Other
Not Applicable
03/02/2008

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Term
Oxygenated blood flows through the?
Definition
Pulmonary veins
Term
The hepatic vein carries blood from ____ to _____
Definition
Liver; vena cava
Term
The position of the heart in the mediastinum is?
Definition
between the lungs, superior to the diaphragm
Term
Where is the pericardial space?
Definition
between the visceral and parietal pericardium
Term
In a normal cardiac cycle what happens?
Definition
Two atria contract together and ventricles relax, and the ventricles contract and atria relax
Term
QRS complex represents what?
Definition
ventricular depolarization
Term
During atrial systole?
Definition
AV valves are open
Term
Which does not signficantly effect heart rate
-sympathetic nerves
-parasympathetic nerves
-atrioventricular valves
-ACh
Definition
-atrioventricular valves
Term
One cardiac cycle?
Definition
Has a duration that change if the HR changes
- usually requires less than a second to complete
Term
Compared with arteries, veins?
Definition
have a larger diameter
Term
Backflow of blood from the arteries into the relaxinv ventricle is prevented by the?
Definition
SL valves
Term
The frank starling law of the heart concerns the relationship between?
Definition
the length of the cardiac muscle fiber and the strength of contraction
Term
How is cardiac muscle different than skeletal?
Definition
arranged in branching networks
single nucleated
more accessible to sodium and potassium ions
Term
Sequence of blood flow in pulmonary circulation?
Definition
Right V, pulmanary A, lungs, Pul V, Left atrium
Term
SA node does what?
Definition
initates heartbeat
Term
if the SNS stimulation of the heart predominates the PSNS stimulation the heart will do what?
Definition
increase its rate
Term
When fluid exhibit a turbulent flow
Definition
resistance increases
Term
Correct sequence of electrical impulses through the heart
Definition
SA Node
AV Node
Atrioventricular bundle
R and L bundle branches
Purkinje fibers
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