What does a mosquito heart look like

Insects also own blood. The blood
  • consists of plasma and hemocytes;
  • does not contain hemoglobin or other oxygen-binding substances;
  • serves to transport nutrients;
  • serves to transport waste materials from metabolic processes and carbon dioxide;
  • can be colorless, but also colored yellow, green or red.
The blood does not flow in closed veins, but flows freely through body cavities and tissue gaps. That is why one speaks of one open blood circulation system.

  • The most important organ of the blood circulation (schematic representation) is the dorsal blood vessel;
  • It is a tubular tube in the upper part of the insect's body from the abdomen to the head;
  • The posterior section is called the heart and the anterior section is called the aorta;
  • The heart has paired gap-like openings (ostia) through which the blood is sucked in;
  • The heart is equipped with circular muscles;
  • When the circular muscles contract, the blood is pumped forward through the aorta and through the opening into the body cavity.
  • The circulatory system brings about a temperature equalization, i.e. it supplies certain parts of the body with heat or dissipates excess heat.
  • To supply the wing veins with blood, pumping devices are used directly at the base of the wing. These are called wing hearts.
  • Antennas and legs also have special devices that pump blood into these parts of the body.
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