do spiders breathe?

Question

i kept a spider in a small glass bottle with a plastic cap (yes i become cruel when my sense of observation heightens XD). i open the bottle around 2-3x a day only to capture small moths around the house for its food. and its still alive and kicking even if i haven't poked holes on the bottle cap. so, do they breathe?

and... err... if they breathe, what do they breathe? same old oxygen?

err... last edit... explain to me why my spider's still alive when the bottle has no holes for new oxygen to enter into.

Answer 1

They breathe, different is how.
It depend from the species. The respiratory apparatus is constituted from tubular tracheas or lungs, otherwise sayings lamellar tracheas, constituted from expansions to shape of bags.
You could put a hairnet in place of the cap, therefore the air
reciprocation would be constant.
Sorry for my english
Ciao! from Italy




Their metabolism is slow, therefore they resist much time with little air, however they breathe like us, oxygen and they expel carbon dioxide

Answer 2

How Do Spiders Breathe

Answer 3

A spider breathes two ways. First, it breathes through small holes in its abdomen called trachea holes. The trachea is a hollow pipe that the spider breathes through - its windpipe. The opening to the human trachea is our mouth and nose, whereas the spider's trachea holes are on the underside of the abdomen instead. A spider does not have lungs like humans do. The trachea leads directly to the spider's internal organs. Second, a spider absorbs oxygen through a structure called its book lungs, so named because the organ is shaped like the pages of a book. Blood flows inside the "pages" and exchanges oxygen from the air circulating between them. This is a passive process, like absorbing something through your skin. Breathing with the trachea holes is an active process, like human breathing, and is more efficient. Different spiders have trachea holes and book lungs of different sizes and in slightly different locations.

Answer 4

Spiders breathe, but you won't see them inhale or exhale. They use book lungs, instead of the hollow bag-like lungs and diaphragm that mammals use.

Answer 5

Barking spiders don't

Answer 6

yes they do breathe