Exam 2 Review.docx

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Department
Biological Sciences Program
Course
BSCI 201
Professor
Justicia Opoku
Semester
Spring

Description
Exam 2 Review Exam Breakdown M/c 2 points each ~ 12 questions Fill in the blank 2 pts each ~ 19 questions T/f if the answer is false, you have to correct it so that it is true 2 pts each, it if is true, circle true and do  nothing else ~13 questions Matching: 1 point each ~ 6 questions the rest will be short answer Electrical Activity in Pacemaker Cells: Depolarize to threshold with funny Na+ Channels (If Channels) and T­Type Ca2+ Channels Open fast L­type Ca2+  Repolarization: Open K+ Channels Rapid Change is an action potential Potassium Cell, though it is a positive ion, is leaving the cell to repolarize the cell. Based upon the  Concentration Gradient.  Sodium moves into the cell and so does  Calcium Compliance Expands with little change in pressure Function as blood reservoir 60% total blood volume in system veins at rest  Veins hold large volume with small pressure change due to high compliance.  Arteries are less compliant Mean Arterial Pressure  Decreased Mean Arterial Pressure Baroreceptors decrease the frequency of Action potentials Decrease in blood pressure Cardiovascular Control Center Increased Mean Arterial Pressure: More action potentials I
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