down side & up side

sunny1231. I usually fish at the down side of the river but my brother fish at the up side of the river.

I wouldn't know what that meant.

sunny1231. I usually fish at the down side of the river but my brother fishes at the up side of the river.

I've never heard those terms before. Where I live (U.S.) it's like this:

I usually fish downstream, but my brother fishes upstream.

If it doesn't mean that, then I have no idea wh

CalifJim,
Can "down side" have any meaning other than "disadvantage"
and
Can "up side" have any meaning other than advantage?

I have seen "down side" in the following.

The blood will distribute more homogeneously with no difference in lung fields when the patient is lying down. But it still has some gravity effect to show dominant blood flow at the down

sunny123Can "down side" have any meaning other than "disadvantage"and Can "up side" have any meaning other than advantage?

Obviously, the answer is yes. After all, you have seen it and reported it yourself:

sunny123I have seen "down side" in the following.

CJ

ok, CalifJim. Please let me know the meaning of "down side" in the following.

1. . But it still has some gravity effect to show dominant blood flow at the down side of the lung.
Here "down side = what?
at the down side of the lung = what?


2. In Valle de la Luna The beau

sunny123ok, CalifJim. Please let me know the meaning of "down side" in the following.1. . But it still has some gravity effect to show dominant blood flow at the down side of the lung.Here "down side = what?at the down side of the lung = what? 2. In Valle de la Luna The beautiful salt cristals are hidden at the down side of the Atacama desert surface. Here down side = wha

sunny123down side of the lung

the part of the lung that is lower (when the person is standing up)

What else did you think it could it mean?

sunny123down side of the Atacama desert surface.

See GPY's reply.

CJ

CalifJimthe part of the lung that is lower (when the person is standing up)

I really don't know for sure what "down side" means in the lung case, but I wonder if this explanation is exactly correct.

"The blood will distribute more homogeneously with no difference in lung fields when the patient is lying down. But it still has some gravity effec

GPYPerhaps they meant the lower part of the lung in the lying-down orientation. This is just a guess.

That's a good guess. I like it better than my interpretation actually.

CJ

Ok, thank you. Then probably it is wrong to use "down side" in these two passage. Probably they were not native English speakers. As a non-native English speaker I guessed They might be wrong either. That is why I asked you about them.

Then I rewrite the sentences as below.

1. But it still has some gravity effect to show dominant blood flow at the lower part of the lung.