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Circulatory System facts

While investigating facts about Circulatory System Diagram and Circulatory System Diseases, I found out little known, but curios details like:

When a male anglerfish finds a female, he will bite down and latch onto her body, where his tissues and circulatory systems will fuse with hers. In exchange for nutrients from the female, the male loses his eyes, fins, teeth, and most internal organs, only serving as a sperm bank for her.'

how circulatory system works?

If all arteries, veins, and capillaries of the a person's circulatory system were laid end to end, not only would that person be dead, but their blood vessels could stretch around the Earth nearly two and a half times (60,000 miles/100,000 km).

What circulatory system consists of?

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what circulatory system important. Here are 25 of the best facts about Circulatory System Organs and Circulatory System Parts I managed to collect.

what circulatory system is composed of the?

  1. Jellyfish live in every ocean, and have survived five mass extinctions, for possibly 700 million years or more, despite most of them lacking specialized digestive, osmoregulatory, central nervous, respiratory, or circulatory systems.

  2. Before medical science discovered how the circulatory system functioned, people believed that a vein ran directly from the fourth finger on the left hand to the heart. This is why people wear their wedding ring on this finger.

  3. Giraffes have a natural blood pressure of about 280/180, and have a complex series of mechanisms in their circulatory system to prevent brain hemorrhage as their heads rapidly change elevation, such as when standing up from taking a drink.

  4. Cockroaches can survive several weeks without their heads. This is possible because all other systems remain intact (circulatory, respiratory…). Eventually, cockroach will die due to thirst. Without mouth, it cannot drink water or eat food.

  5. Larva attaches to the rock or some other solid object and starts digestion of its own body parts: tail, primitive eye, cerebral ganglion (brain-like organ) and notochord (spine-like structure). This process usually lasts 36 hours and leads to creation of sac-like creature equipped with two siphons and circulatory, digestive, and reproductive systems.

  6. A cockroach can live for a week without its head. Due to their open circulatory system, and the fact that they breathe through little holes in each of their body segments, they’re not dependent on the mouth or head to breathe. The roach only dies because without a mouth, it can't drink water.

  7. The upper limit for human height is not much more than 9 feet according to John Wass, a specialist in acromegalic gigantism at the University of Oxford. According to him, at that size it is simply too much strain on the circulatory system to live for long.

  8. Even though albacore belongs to the group of cold-blooded creatures, its body temperature is higher than the temperature of water thanks to specifically designed circulatory system. This anatomical feature ensures great mobility of the body.

  9. Even after losing their heads, cockroaches can survive for a long period of time as they have an open circulatory system and don't have a network of blood vessels or pressure, thus the loss of blood from losing their heads won't kill them but rather starvation would.

  10. There's a thing called bullet embolism; where bullet enters a blood vessel at right angle and speed to get flushed down the circulatory system.

circulatory system facts
What's circulatory system organs?

Why circulatory system works?

You can easily fact check why circulatory system in mammals by examining the linked well-known sources.

In 1749 he received his M.D. at Leiden University with a thesis on the circulatory system.

The Skeletal-Muscle Pump, a collection of skeletal muscles that aid the circulatory system in pumping blood back to the heart, therefore acting as a second heart. - source

William Harvey, the discoverer of the circulatory system, dissected the bodies of his father, & his sister to study them & mentioned doing so in his lectures. - source

Before medical science discovered how the circulatory system functioned, people believed that a vein ran directly from the fourth finger on the left hand to the heart - which is why it led them to believe this finger was to be designated as the wedding ring finger.

If you took your circulatory system and stretched it end to end it would be long enough to wrap around the earth twice - source

When was the circulatory system discovered?

Forcing air into the uterus can potentially result in a fatal embolism (an air bubble in the circulatory system).

How circulatory system works with other systems?

Insects have the most efficient respiratory systems in the world, despite lacking a circulatory system.

The creator of LSD was hoping to come up with a compound that would stimulate the circulatory and respiratory systems. He discovered lysergic acid diethylamide, or LSD on his 25th attempt. He had synthesized the drug from a chemical created from a mushroom long used as a folk medicine

Male bed bugs have a knife-like penis, stab female bed bugs in the abdomen, and release sperm directly into her circulatory system

Angler fish interestingly begin reproduction with the typically larger female absorbing the smaller male into its body. The two share a circulatory system; the male receives nutrients from the female; and the male internally provides sperm to the female. One female often fuses with many males.

Bed bugs reproduce via the male puncturing the abdomen of a female with its penis and injecting sperm directly into the female's circulatory system. Because bed bugs find mates based on size, they often accidentally do this to other males who have recently engorged themselves on blood.

When do the respiratory and circulatory systems work together?

It is possible for a bullet to enter your body and get lost in the circulatory system

Insects have an open circulatory system, which does not carry oxygen or contain red blood cells. The liquid, hemolymph, is not contained in vessels but flows freely.

This is our collection of basic interesting facts about Circulatory System. The fact lists are intended for research in school, for college students or just to feed your brain with new realities. Possible use cases are in quizzes, differences, riddles, homework facts legend, cover facts, and many more. Whatever your case, learn the truth of the matter why is Circulatory System so important!

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