As blood is pumped into the arterial trunks past the semilunar valves, it
A. pushes against the cusps, forcing the valves open.
B. fills the cusps, causing them to expand and open up for the flow of blood.
C. fills the cusps, causing them to expand and block the backflow of blood.
D. pushes against the cusps, forcing the valves closed.
E. None of these answers is correct.
Answer: A
You might also like to view...
The transition from a hunter-gatherer to an agricultural lifestyle greatly changed the types of diseases and injuries that early peoples suffered.
Answer the following statement true (T) or false (F)
All of the following can be expected with polycythemia except ________.
A) high hematocrit B) low blood viscosity C) increased blood volume D) high blood pressure
An adult patient shows Babinski's sign during a test of plantar reflex. How is Babinski's sign different than the normal response and what does the altered response indicate?
What will be an ideal response
The mesentery attached to the inferior margin of the stomach is called the ________
A) lesser omentum B) mesocolon C) intestinal mesentery D) greater omentum