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WorksheetsHES 111 Practice Quiz - General
Total questions: 10
Worksheet time: 8mins
Place the events of a Pacemaker Cell Action Potential in order:
1)Ca2+ in via Ca2+ channels
2) HCN channels open in response to K+ flowing out
3) HCN channels open, Na+ in and K+ out
4) K+ flows out via K+ channels
1)
2)
3)
4)
3)
4)
2)
1)
4)
2)
2)
1)
3)
1)
4)
2)
Vessel Radius, Blood Viscosity, Vessel Length, and Obstructions in Vessels are factors that affect:
(select all that apply)
Cardiac Output
Blood Volume
Peripheral Resistance
Blood Pressure
Stroke Volume and Heart Rate are factors that affect:
(select all that apply)
Blood Volume
Cardiac Output
Peripheral Resistance
Blood Pressure
In the Pacemaker Cell Action Potential, which phase does Ca2+ flow into the cell?
Repolarization Phase
Full Depolarization Phase
Slow Initial Depolarization Phase
Minimum Potential Phase
Place the phases of Contractile Cell Action Potential in order:
1) Ca2+ in balances K+ out
2) Na+ and Ca2+ channels close as K+ continues to exit the cell
3) Na+ channels close and K+ channels open, some K+ begins to leave the cell
4) Voltage gated Na+ channels open and Na+ rushes into the cell
1)
2)
3)
4)
4)
3)
1)
2)
4)
2)
1)
3)
1)
3)
2)
4)
Intercalated discs are made up of:
(select all that apply)
Desmosomes
Gap Junctions
Tight Junctions
Myosin
Myofibrils
Place the events of the Cardiac Conduction System in order:
1) AV Node
2) SA Node
3) AV Bundle
4) Atrial Cells
5) Purkinje Fibers
6) Left and Right Bundle Branches
3)
1)
2)
4)
5)
6)
2)
4)
1)
3)
6)
5)
2)
1)
3)
4)
5)
6)
3)
2)
1)
6)
4)
5)
Water Loss and Water Gain are factors that affect:
Blood Volume
Cardiac Output
Peripheral Resistance
Factors that affect Cardiac Output:
(select all that apply)
Epinephrine and Norepinephrine
Thyroid Hormone
Increased Preload
Increased Afterload
Decreased Contractility
Substances that effect Blood Volume are:
(select all that apply)
Anti-Diuretic Hormone
Aldosterone
Epinephrine and Norepinephrine
Oxytocin
Water
