Hemolymph.
In the abdomen
The head is the first part, with antennae, eyes and mouthparts. The thorax is the middle, with the legs and wings if the insect has them, and containing the muscles to use them. The third part is called the abdomen, with no appendages. This part houses the internal organs.
Fluid-filled body cavity and three tissue layers.
Spiders hold their prey with their legs. Spiders inject venom to paralyze their prey with their fangs. Spiders regurgitate fluid from their stomach's onto the prey and the fluid breaks down the nutrients which flow into the spider through its mouth. (We humans have internal processes for getting nutrients from food, spiders have external processes.
There are many characteristics that are general of insect body structures. Most insect bodies include a hard casing for protection for example.
The exoskeleton is like a hard skin that covers the whole insect. It supports the body instead of an internal lskeleton.
Plasma is the only fluid that circulates throughout the body and links external and internal environment.
The dragonfly is an insect and insects do not have an internal backbone. They have an external exoskeleton covering the body.
heart
It is the liquid which the body's cells live in
The larva's internal organs are re-structured and re-shaped into the adults body shape.
Mucous membranes do this by producing a fluid called mucous.
The ultimate source of fluid pressure in the body is the heart, whose pumping generates blood pressure.
Severe body fluid loss, internal bleeding, and diarrhea
severe body fluid loss, internal bleeding, and diarrhea
severe body fluid loss, internal bleeding, and diarrhea
In the abdomen