Explain the circulatory system and blood in insects

The explanation of the circulatory system and blood in insects is what teaches us how wonderful the Creator is in what He has created, so that you will find extraordinary precision in creatures of this small size, where the blood flows through the body in an organized manner; regulate all vital processes.

Explanation of the circulatory system

It is called the circulatory system or circulatory system, and its main function is to enable the blood to circulate through the body, sometimes delivering this food and sometimes oxygen through a huge number of blood vessels.

However, the situation is different with insects because they do not have closed blood vessels like in humans, but blood is present in the body through every hump and notch, completely flooding the insect’s organs.

However, the matter goes in its own order and order, because God – the Most High – did not create, forbid it in vain, and we can learn about the circulatory system and blood in insects if we first understand the basic components of that system.

First: the aortic arteries

Like the arteries in the insect’s body, its function is to deliver blood to the brain, after which the blood travels in two branches, and thus to all parts of the body.

Second: heart muscle

In the insect’s body, it is a very narrow tube, and its diameter cannot be fully determined, but can be deduced from the pulse.

The heart of an insect is divided into chambers, each chamber represents a ring in the abdomen, and unlike humans, the number of these chambers varies from insect to insect.

Where do you find that a cockroach has 11 chambers while a bee has around chambers and a fly has 3 chambers and others only have one chamber.

These chambers are connected to the pterygoid muscles by very fine threads, and on the side of each chamber there are two openings through which blood enters, and at their doors there are valves that prevent blood from leaving.

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Circulation of insects

Blood flows through the insect’s body; To feed the tissues and the gut, and this process does not take place randomly, but through two main processes.

First: breakthrough Diastole

Initially, the heart opens its valves as a consequence of its expansion, thereby opening the ear valves, after which the side openings in each of the chambers open their valves.

This causes the blood to suddenly flow out of it into the other chambers, until the blood reaches the last chamber of the heart, and then the valves close their doors.

Second: contraction Systole

The pterygoid muscles begin to contract, which causes the heart to contract. Here, the auricular valves also close their doors.. because the blood flows from the last chamber, all the way to the chamber that precedes it, and the valves close again to keep the blood in the chamber.

Meanwhile, the blood travels through veins, connected to the head, legs, and thorax, and through the upper and lower veils to the back of the insect.

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The importance of blood flow

The circulatory system in its role in the insect’s body is very important because it helps it in its various vital functions.

Occupation Importance
diet It transports the digested food to all its parts, and takes the waste out.
immunity Phagocytes protect him from disease.
breathing It transports oxygen and exhales carbon dioxide.
change He helps her by breaking her egg and changing the old skin.
wings He helps her open her wings.

types of blood cells

Not only does the body of an insect contain cells, but also blood, but these cells are diverse and each has a different function.

cell type configuration
Proleukocytes Small round, dark cytoplasm and source of other cells.
Phagocytes Ingestion of damaged tissue.
Enocytoids Round, several shapes, with bright cytoplasm, small nuclei.
Plasma cells They make up the largest amount, they contain enzymes of immune bodies.
Granular cells Its kernels are small, colorless and acidic.
Spherulocytes It has several spherical shapes, and it releases substances that promote coagulation.
Cystocytes Unstable, substances penetrate into the plasma.
Adipohemocytes It consists of small and large fats.

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Insect body parts

Explain the circulatory system and blood in insects

Unlike mammals, the body of insects contains somewhat more primitive systems. For example, the circulatory system and its blood circulation are very simple.

Where the insect’s body is divided into two diaphragms, the first is the upper diaphragm, the dorsal diaphragm, and the second is the lower diaphragm, the ventral diaphragm.

Inside these two veils there are three more parts which are cavities.

  • upper cavity: The one in which the heart is located, and above you can see triangular muscles, slightly graduated, called “pterygoid muscles”.
  • middle cavity: It is the middle of the insect’s body, and it contains the digestive part and the reproductive system.
  • bottom bore: It is the place of the nerve cord, which is the seat of sensation.

The circulatory system of an insect is really very important, without which the insect cannot feed or even breathe, because it complements all the systems of its body.

Frequently asked questions

  • What color is the blood of insects?

    Spiders, snails, slugs and insects have blue blood; because it does not contain hemoglobin.

  • How do insects breathe?

    through a bronchial respirator.

  • How many legs do insects have?

    Most of them have 6 legs.

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