Frankie asked in Science & MathematicsZoology · 1 decade ago

Do insects have hearts?

What kind of 'circulation' do they have?

10 Answers

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  • Anonymous
    1 decade ago
    Best Answer

    Insects do have hearts - sometimes several of them! The heart in insects is a contactile blood vessel that extends the length of the animal. Contractions start at the posterior end & progress anteriorly. As noted by several of the other posters, the insect circulatory system is an open system. This means that the blood is not always contained in blood vessels. Our circulatory system is a closed system because our blood is always contained in blood vessels. In insects, the blood leaves the heart at its anterior end and enters the hemocoel. The blood in the hemocoel baths most of the animal's internal organs. After passing though the hemocoel, the blood reenters the heart tube through holes called ostia. The ostia have valves that only allow blood to enter the heart. The blood can't leave the heart via the ostia. I mentioned earlier that insects can sometimes have several hearts. These accessory hearts pump blood into areas that would not be well perfused by the main heart. In many insects, there are accessory hearts located at the bases of the antennae and the wings, which pump blood into those structures.

  • 1 decade ago

    Yes, insects have hearts that pump hemolymph (kind of insect blood) around their systems. Though their heart is quite different from a vertebrate heart, there are some of the genes that direct heart development in vertebrates and invertebrates that are very similar.

    Katydid

    Most insects have hearts. Some of the smaller types don't. An insect heart is fairly simple, it's basically a muscular tube that contacts from one end to the other, forcing blood through it. Insects have an open circulatory system. What this means is that the blood flows from the blood vessels out the end into the body cavity. It sloshes around the body cavity until it gets sucked back into the other open end of the blood system somewhere else. This is in contrast to mammals where the blood never leaves the blood vessels at any stage.

    Gaspode

    There is nothing you can't GOOGLE

  • Boothe
    Lv 4
    4 years ago

    insects hearts

  • Anonymous
    1 decade ago

    all insects hav hearts take the worm as example it has a heart in all of those little lined section

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  • 1 decade ago

    Insects have a long tube-like heart for pumping their blood, but do not have arteries or veins. It's certainly rather different than the mammalian heart.

    You can read more at the link I've posted.

  • Anonymous
    4 years ago

    This Site Might Help You.

    RE:

    Do insects have hearts?

    What kind of 'circulation' do they have?

    Source(s): insects hearts: https://shortly.im/3lHKs
  • 5 years ago

    yes;all insects hav hearts

  • 4 years ago

    Does that mean that all females are insects?

  • 3 years ago

    Do Bugs Have Hearts

  • Anonymous
    1 decade ago

    Only the females. As in all of the animal kingdom males do not have hearts.

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