Ralph is looking at a blood vessel under a microscope as part of his study about the cardiovascular system. He notices that the vessel contains blood and has valves. What is the blood vessel that he is observing?
a. capillary b. vein c. lymph d. artery
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Hello @mikezack123, Answer to your question will be veins
THANKS @Abhisar can u help out with another?
Which lists the correct order of events in the healing of cuts? a. red blood cells trapped in fibrin net, net formation by platelets, vessel constriction b. vessel dilation, platelet plug formation, net formation by red blood cells c. vessel constriction, platelet plug formation, net formation by fibrin threads d. platelets trapped in fibrin net, net formation by white blood cells, vessel dilation
@MikeZack123 what do you think should be the answer?
b
because the vessel opens then platelets go in then the net forms, which patches up the cut...
right? @Abhisar
@MikeZack123 if blood vessels will dilate then bleeding will become more profound
ohhh. so it should be C. because the vessel constricts which makes it tighter and less blood comes out?
Bingo @MikeZack123
THANK YOU!!
Anytime !
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