How Does an Octopus Get Oxygen?

  1. Anatomy

    • All octopuses have eight muscular, flexible arms with rows of suckers on them. They have no bones. The main part of an octopus's body is called the mantle. The eyes are located on the outside of the mantle. The siphon, a tube for expelling water, is also located there. In the center of all the arms is the octopus's beak, which looks very like a parrot's beak. The beak is used for killing and eating prey.

      Inside the cavity of the mantle are the octopus's organs, including the gills and three hearts that are vital to its respiratory system. Two of these hearts are near the gills, and are called gill hearts.

      Octopuses have what is called a closed circulatory system. That means the blood travels through tubes. The only tubes in an octopus's system are blood vessels.

    Breathing

    • An octopus breathes by drawing water into the cavity formed by the mantle. The water provides oxygen for the gills. Later, the water is pushed out of the body by the siphon.

      The gill hearts pump blood to the gills where the blood dumps waste and loads up on oxygen. Then the oxygen-rich blood is pumped to the third heart. This heart, called the systemic heart, pumps blood through the rest of the octopus's body.

    Blood

    • Octopuses have about the same blood volume as humans--about 5 percent of their body volume is blood. Their blood is about as loaded with hemocyanin as human blood is with hemoglobin. Both hemocyanin and hemoglobin are proteins that help blood absorb oxygen. (An octopus's blood is light blue because hemocyanin is blue. Hemoglobin gives human blood its red color.) But hemocyanin is about a quarter as effective as hemoglobin is in carrying oxygen, so the human system is more efficient. This is why an octopus can make a sudden jetting motion, but can't sustain fast movement.

Related Searches

References

Resources

  • Photo Credit Photo by: Chance Agrella Photo Courtesy Of: http:\\www.freerangestock.com

You May Also Like

  • Symptoms of a Blue Ringed Octopus Bite

    The bite of a blue-ringed octopus may not hurt save for a small pinch, but the venom can be painful. ... Later,...

  • How to Buddy Breathe

    Buddy Breathing Without an Octopus Rig. 1. Signal to your buddy that you're out of air and want to buddy breathe. 2.

  • How Do Animals in the Ocean Protect Themselves?

    Squid, cuttlefish and octopus have a unique adaptation for concealment: the ability to instantly change color and skin pattern through the use...

  • How Do Seahorses Breathe?

    Although seahorses may look very different from other types of fish, they are simply a genus of bony fishes with an upright...

  • Excretory System Facts

    The excretory system is probably the most underrated of the body's functioning structures. When most people think of the excretory system, they...

  • Difference of Mollusks & Crustaceans

    The octopus is a mollusk known for its intelligence. Mollusks have developed bodily organs and moderately complex nervous systems, ... and respiratory...

  • Facts About the Blue-Ringed Octopus

    The blue-ringed octopus carries enough poison in its glands to kill 26 people in a matter of minutes. It lives in the...

  • Animals That Breathe Through the Skin

    A selection of animals which live on land have a skin thin enough for gases to pass through. These animals are capable...

  • How Much Change Can an Octopus Adapt To?

    An octopus does not have any teeth, claws or a skeleton to help it guard itself against attackers. However, the animal uses...

  • Mollusk Life Cycle

    The mollusk's body contains the digestive and reproductive organs. ... A tiny octopus emerges from each ... comprise a large family of...

  • Respiratory Therapist Colleges in Illinois

    Respiratory therapy is not only ... provide oxygen and other therapies to people with illnesses or diseases the affect the lungs or...

  • How to Wash the Lamaze Octopus

    If you throw the octopus into a washing machine or hand wash it in the ... Lamaze Breathing Methods. Featured. 7 Ways...

  • Earthworms Facts

    Breathing in Water. Earthworms can absorb oxygen from water as well as air through the same process of ... Earthworms contain the...

  • Fast Facts About Sea Animals

    Fish obtain oxygen by breathing it in from the water itself through respiratory organs known as gills. ... also known as the...

  • What Animals Live in Aquatic Habitats?

    This includes aerobic respiration, ... Although octopus and squid live in marine habitats, mollusks are very common in fresh water streams, rivers...

  • What Are the Four Main Body Parts of a Mollusk?

    Mollusks have well-developed organs and have strong respiratory, ... In some mollusks, such as slugs and octopuses, the mantle has no evolutionary...

  • Symptoms of a Mussel Allergy

    The respiratory system can also suffer effects from a mussel allergy. Congestion can develop in the lungs and nose, ... Squid and...

  • Digestive System of an Octopus

    The many varieties of octopus belong to the Cephalopoda family, meaning "head-footed." Ranging in size from a few inches up to several...

  • Seven Classifications of an Octopus

    There are over 200 classifications of octopus known to man. Octopus are invertebrates with two eyes and four pairs of arms for...

Related Ads

View Blog Post

Is Pet Insurance the Right Choice for You?