WorksheetsESS 206 Test I review
Total questions: 11
Worksheet time: 6mins
This is a "protective" mechanism in the heart to reduce friction
What is the main reason for differences in cardiac wall thickness?
Which property of cardiac cells refers to their ability to initiate an impulse spontaneously and continuously?
Excitability
Conductivity
Contractility
Automaticity
During repolarization of ventricles
the ventricles are relax
the ventricles are contract
If the pulmonic valve "sticks" and does not open completely, which heart chamber does blood backup in as a result?
During resting inspiration, the
Which is the correct sequence of PO2 progressively decreasing?
Where is the respiratory center located that regulates inspiration, expiration, and rhythm of breathing?
Which of the following are true about oxygen transport by the blood?
An environment of high PO2 (such as >80 mm Hg) is necessary
Under resting conditions, most of the hemoglobin releases oxygen
Oxyhemoglobin dissociates easier/faster when blood enters active tissues
Most of the oxygen transport in the blood is in the form of bicarbonate
Which of the following stimulate both the cardiovascular control center AND the respiratory center? (MC)
Baroreceptors
Peripheral Chemoreceptors
Central Chemoreceptors
All of these
The percent of "red cell volume" in our blood?
15% to 55% for men and 10% to 50% for women.
