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Blood
The fluid that is in the dural venous sinuses is venous blood that originates from the brain or cranial cavity. They collect blood from veins on the surface of the brain. Blood from the sinuses empties into the internal jugular veins
the body cavity of cockroach is called heamoceol because their blood circulates in the body sinuses .these blood sinuses collectively known as haemoceol.
Venous blood
spleen
a bloody one
3. grasshopper
The Internal Jugular drains the brain via the collection of blood from the superior sagittal sinus, inferior sagittal sinus, straight sinus, right transverse sinus, sigmoid sinus, and cavernous sinus (to name a few).....The other jugular....The External Jugular drains the occipital, facial (also drained by internal jugular), maxillary, and temporal veins.
baroreceptors
dural sinuses
Macrophages that do not move, they are attached to wide blood vessels (sinuses or sinusoids).
The transverse colon function is to remove water and form feces. The transverse colon is so important to our digestive system it had two arteries to provide its demand of oxygenated blood.