Mechanical Properties of the Heart

Front

What is the normal heart rate of a dog?

Back

80-120 bpm

Front

What is the normal heart rate for a cat?

Back

100-140 bpm

Front

Cardiac muscle functions as a unit where if one part is stimulated, the entire heart will contract, a mechanism known as

Back

functional syncytium

Front

This antiporter is unique to cardiac muscle and helps bring about diastole

Back

Electrogenic Na/Ca exchange antiporter, driven by Na+ gradient where 3 Na+ go in for every 1 Ca2+ that goes out

Front

The right side of the heart is ____ pressure and performs ____ circulation

Back

low, pulmonary

Front

The left side of the heart is ____ pressure and performs ____ circulation

Back

high, systemic

Front

Blood flow through one way valves is dependent on what?

Back

Pressure

Front

What is cardiac output?

Back

heart rate x stroke volume

Front

What is preload?

Back

Pressure in the chamber at the end of the ventricles filling before a valve opens

Front

T or F: an increase in preload increases the stroke volume

Back

T