Do insects have blood? Detailed answer

BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

Do insects have blood? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Did you know?

Do insects have blood?

When we look at living beings much smaller than us, many of us think that they do not have those organs and body functions that we have. How can a creature as small as an insect have a heart? How can a circulatory system with blood circulating through it be accommodated in its tiny body? But the magic of nature lies not only in the fact that these creatures have organs, but also in the fact that these organs are ideally adapted to the way of life of each individual species.

The body of an adult insect is divided into three parts: the head, chest, or thorax, and abdomen. On the head is a pair of antennae that serve as organs of touch and also perform the functions of smell. Also on the head is a mouth and eyes. The insect has not only a heart, but also a circulatory system. Blood enters the heart through openings equipped with valves. When the heart contracts, these openings close and blood is forced out into the arteries. Insects do not have a system of capillaries and veins, as we do. The reason why their circulatory system is not so highly developed is that the supply of oxygen to their body does not occur through the blood circulation.

In our body, as you already know, blood carries oxygen to all parts of our body and enables them to function. But insects have a completely different respiratory system. They have small branching tubes that end in air holes on the sides of the body. Air enters directly from the surface of the body and enters directly into the cells of the body. They do not need a more complex system, given their negligible size. On the other hand, a system as simple as theirs would not be sufficient for larger animals. But in principle, this is not such a bad device, especially if you take into account the fact that more than half of living things get by with it.

Did you know that insects have another name - "hexapod"? This term, translated from Greek, means "six-legged". If you count the legs of an insect, you will see that the name hexapod describes most insects well. They usually have three pairs of legs attached to the thorax. There are thousands and thousands of different types of insects. Among them are the best friends of man, and his sworn enemies.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

How did a French engineer save the Great Pyramids from dismantling for building materials?

Louis Linant de Belfon, before becoming the chief engineer for the construction of the Suez Canal, commanded the construction of dams and the laying of irrigation canals on the Nile. To optimize the work, the ruler of Egypt, Muhammad Ali Pasha, suggested using a stone from the Great Pyramids. Belfon was against it, but he understood that in case of refusal, the pasha would hire another engineer. In order to save the Pyramids, he provided fictitious calculations, according to which it turned out that it would be cheaper to extract material from the quarries.

Test your knowledge! Did you know...

▪ What was the first movie?

▪ Who are hamsters?

▪ Why is Steven Spielberg, who had nothing to do with the first Star Wars, getting 2,5% of the profits from them?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

Biobank for storing living brain samples 15.11.2023

The biobank, containing live samples of brain metastases, represents a breakthrough in cancer research, providing access to valuable data and unique tools to combat this devastating disease. The results of the study have already found practical application in creating individualized approaches to treating patients.

Spanish scientists presented a unique biobank containing living samples of brain tissue from patients with metastases. This biobank, part of the National Network for the Study of Brain Metastases (RENACER), is a valuable resource for research and drug testing. The resulting data will be available for use in global scientific research.

Traditional brain cancer research and drug testing often uses mouse models. However, the search for human samples begins after significant discoveries, and testing them on humans becomes challenging. Obtaining sufficient numbers of human samples is often a long and complex process, requiring adherence to ethical and legal standards and collaboration with various institutions.

The Spanish National Center for Cancer Research (CNIO) offers a solution to this problem by providing a repository for live samples of brain metastases. During metastasis operations at one of RENACER's 18 associated hospitals, patients can voluntarily provide small sections of their brain for inclusion in this biobank.

Living cells in a biobank enable in-depth studies of drug response, creating patient “avatars” to determine optimal treatment. In addition, RENACER used RNA and exosome sequencing to analyze more than 150 brain metastases, and the resulting information was entered into a publicly accessible database.

Manuel Valiente and Eva Ortega-Paino, authors of the study, report that agreements have already been signed to use organotypic cultures from patients as “avatars.” These cultures may serve as potential indicators of drug sensitivity or resistance. Organotypic cultures reproduce certain aspects of the natural physiology and functioning of the body, which require careful processing. After the tissue sample is collected, it is delivered to the biobank within 24 hours under certain temperature conditions (4 to 8 °C). The tissue is then processed into organotypic cultures, separated, and stored for later research.

Other interesting news:

▪ Schneider APC M5 and M10 mobile batteries

▪ Anti-satellite weapons

▪ TEKTRONIX TDS7704 digital oscilloscope

▪ Instant dimming for the welder

▪ Data transfer over USB 3.2 at speeds up to 20 Gbps

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Instructions for use. Article selection

▪ article Kovalevskaya Sofia. Biography of a scientist

▪ article How does seaweed grow? Detailed answer

▪ article Small-leaved indigo. Legends, cultivation, methods of application

▪ article Reactor in the garden. Encyclopedia of radio electronics and electrical engineering

▪ article RDS signal receiver. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews