In insects like grasshopper, the circulation process starts when the heart vessels pump the blood in a small space of the body cavity. Hemolymph, which is most body fluid, pumped forward from hind end and the sides of the body along dorsal vessel. Next, the movement of the coordinated muscles will return the blood from the body cavity into the dorsal spaces, which is called dorsal sinus. According to Jamal (n.d.), the blood then enters the hearts vessels through ostia (Refer to Figure 1 in Appendix). After that, the fluid is discharged in front of …show more content…
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