Functions
The circulatory system supplies the body with defenses against
bacteria/infections
What are the three different type of blood vessels we learned about?
Arteries, Capillaries, Veins
What are the thinnest blood vessels?
capillaries-they are so thin that red blood cells line up in a single file line
What structure do blood vessels have?
tube-like structure; rarely ever are they a straight line
What drives the circulatory system?
concentration gradients/pressure gradients
Where do we see a major blood pressure decrease?
What do arteries branch off into?
arterioles
what do capillaries connect?
The circulatory system carries ____ and ___ away from body cells
carbon dioxide and waste products
Blood leaves the capillaries through
venules
Blood vessels in the legs have? And why do they have them?
They have valves to prevent backflow which allows blood to flow in one direction
What type of blood vessels carry blood away from the heart?
the arteries
The circulatory system brings ____ and ____ to the body cells
nutrients and oxygen
As discussed in class, what was the basic blood flow outlined?
Arteries--->Arterioles--->Capillaries-->Venules--->Veins
Which blood vessels is the most branched?
capillaries
what type of blood vessels carry oxygenated blood to the heart?
veins
The circulatory system carries _____ that brings instructions from one part of the body to another
hormones
What happens to the pressure of blood when it reaches the capillaries? And why is this important?
it becomes reduced and this is important because capillaries are thin blood vessels that could burst under high pressure
Which blood vessels allow for diffusion? And what is being diffused?
capillaries-oxygen, carbon dioxide, nutrients, and waste products.
What type of blood do arteries carry?
they carry oxygenated blood away from the heart and to the rest of the body