Wcu_Phys_261_Final_Exam_2026_Comprehensive_Exam_Full_Questions_And.pdf

WCU PHYS 261 EXAM ACTUAL
COMPLETE QUESTIONS 100
PERCENT CORRECT


◉ -Rh+
-Rh-. Answer: What are the 2 Rh blood types?


◉ antigens and antibodies. Answer: What do RBCs have that help
differentiate blood types?


◉ type A: A antigens and anti-B antibodies
type B: B antigens and anti-A antibodies
type AB: A and B antigens and no antibodies
type O: no antigens and both anti A and B antibodies. Answer: What
are the antigens and antibodies for the ABO blood types?


◉ Rh+: Rh antigens and no anti-Rh antibodies
Rh-: no Rh antigens and anti-Rh antibodies. Answer: What are the
antigens and antibodies for the Rh blood types?

, ◉ starts the impulse and spreads it to both the atria and this causes
both atria to contract. the impulse then travels to the next segment.
Answer: What is the function of the SA node?


◉ slows the impulses down, giving the ventricles time to fill with
blood. the impulse then travels to the next segment. Answer: What is
the function of the AV node?


◉ receives impulse from the AV node and gives it to the Purjinke
fibers. Answer: What is the function of the Bundle of Hiss?


◉ receives impulse and spreads it among the ventricles, causing the
ventricles to contract. Answer: What is the function of the Purjinke
fibers?


◉ SA node, AV node, Bundle of Hiss, Purjinke Fibers. Answer: What
are the 4 parts of the conduction system of the heart in order?


◉ pacemaker potential: slow depolarization because Na+ channels
open and K+ channels close
depolarization: action potential reaches threshold due to the influx
of CA2+ through CA2+ channels
repolarization: repolarization due to CA2+ closing and K+ channels
opening. Answer: What are the steps of SA node action potential?