Orcas And Killer Whales

Decent Essays
Orcas, also known as killer whales are among the most aggressive types of hunter in the ocean. They are the biggest dolphins in existence and are fierce carnivorous predator that can be found around the world, but much commonly in highly productive areas of cold-water upwelling, such as the Pacific Northwest, along northern Norway’s coast in the Atlantic and the tiger latitudes of the Southern Ocean. Killer whales favour cold waters, they can stay submerged for more than 5 minutes and occasionally for more than 15 minutes in a single dive. Orcas eat varied components such as seabirds, squid, fish, sea lions, seals, octopuses, sea turtles and sharks.

Since both human and orcas are mammals, the killer whale’s internal circulation system and
…show more content…
Orcas have blowhole instead of nasal cavity. The orcas breaths through a blowhole located at the top of the head, it 's covered by the muscular flap when the muscular flap is relaxed the blowhole is closed and the muscular flap contracts the hole opens and exchange the gases. Orcas also have bronchi which is made of cartilage rings and smooth muscle branch from the trachea into each lung and create the network of narrower finer intricate passage that supply the lungs with air. T?he structure of larger bronchi is similar to trachea. The bronchi inter cell tissue is lined with mucus and cilia which continue to filter the inhaled air and get rid of any leftover environmental contaminants. The walls of the bronchi are lined with muscle tissue which can control the flow of air going into the lungs, such as during physical activity, the muscles relaxa and allow more air to go into the …show more content…
The heart works by pumping the blood throughout the internal circulatory system to deliver the oxygen and nutrients to the body cells. There are some features about the heart which allows more efficient respiration system. The heart have a left atrium and left ventricle. The left side of the heart is called systemic circulation which only pumps the oxygenated blood to the body and the right side of the heart is called pulmonary circulation only pumps deoxygenated blood from the body to the lungs. They are completely separated by septum, thus, no mixing of oxygenated blood and deoxygenated blood. The most important adaptation that orcas have and allows them to stay submerged more than 15 minutes, it’s because they have a more abundant supply of red blood cells and a higher concentration of hemoglobin inside their blood which allows for a larger amount of oxygen to be stored in the blood for their deep dive. There are some features about the blood for orcas which enables their ability to dive for more than 15 minutes. Orcas store the oxygen molecules within their bodies and transport these oxygen molecule around their body in a protein called hemoglobin. Hemoglobin is what

Related Documents

  • Decent Essays

    This mucous membrane is affluent in blood vessels; they warm the air when it goes into the nasal cavity. • The pharynx is a passageway for not only air but also food. It is commonly called the throat. Through the pharynx, food is delivered into the esophagus and air into the lungs. The mucous lining in the pharynx filters out any contaminated air.…

    • 1957 Words
    • 8 Pages
    Decent Essays
  • Decent Essays

    What is the Cardiovascular System? The Cardiovascular System is also known as the Circulatory System and the Vascular System which is an Organ System.2nd The Cardiovascular System consist of the heart, blood vessels and the blood. All three of these elements make up the Cardiovascular System. These elements permit the blood to circulate and transport nutrients, oxygen, carbon dioxide, hormones and blood cells to and from the cells in the body to provide nourishment. Also, the different parts of the cardiovascular system move lymph which is a clear fluid that helps rid the body of unwanted material.…

    • 708 Words
    • 3 Pages
    Decent Essays
  • Decent Essays

    Circulatory System Essay

    • 1290 Words
    • 6 Pages

    (“Arteries, Veins, and Capillaries”) Blood goes through the body in blood vessels called arteries, capillaries and veins. Arteries keep blood flowing away from the heart and throughout the body. The blood that travels through the arteries carries o2 molecules to give to the whole body. Arteries are thicker than any blood vessel in the body because it helps with the high pressures of blood being pumped from the heart. Once the blood traveling through the arteries reach the end of that particular blood vessel, it goes through a smaller blood vessel called the capillaries.…

    • 1290 Words
    • 6 Pages
    Decent Essays
  • Decent Essays

    Ventilation can be affected by the ability of the respiratory muscles to contract. Whereas, perfusion can be affected by blocking of the alveoli (ex. excess mucous, dirt or disease causing organisms). Ventilation involves the nose, pharynx, larynx, trachea, and the right and left bronchi. Perfusion involves the respiratory bronchioles, alveolar ducts, and the alveoli.…

    • 1162 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    The respiratory system consists of the nose, pharynx, larynx, trachea, bronchi, and lungs. Respiration starts when oxygen enters either the passageways of the mouth or nose, where the air is moistened and warmed to avoid irritation to other parts of the system. In the nose and other air passages, there are hair-like structures covered with mucus called cilia that filter out debris and other foreign particles…

    • 1050 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    Gas Exchange In Fish

    • 1603 Words
    • 7 Pages

    Capillaries surround the alveoli so the gases can diffuse between the air and the blood. Oxygen from the air in the alveoli diffuses into the blood and as this happens carbon dioxide from the blood diffuses into the alveoli. Mucus in the trachea and the bronchioles help to keep them moist and clean and to stop unwanted particles getting into the gas exchange system. It is important the alveoli stays moist in order for the oxygen to dissolve and diffuse into the blood. Because the lungs are deep inside the body they are kept moist as it is harder for it to…

    • 1603 Words
    • 7 Pages
    Decent Essays
  • Decent Essays

    The Cardiovascular System

    • 1475 Words
    • 6 Pages

    The heart’s most important function is to indulge indispensable nutrients to the tissues and to eliminate waste products (Balaban 185). The human heart is responsible for circulating blood throughout the body and is the diameter of a closed fist (CardioSmart). The lung’s obligation in the body is to transport oxygen to the blood, while the heart’s…

    • 1475 Words
    • 6 Pages
    Decent Essays
  • Decent Essays

    Respiratory Tract

    • 1132 Words
    • 5 Pages

    During exhalation, the diaphragm is relaxed upwards, pushing air out of the lungs. The lungs have a spongy tissue with its volume engaged in air-filled spaces. The lungs are covered in a double layered serosa where the parietal pleura lines the thoracic wall and the visceral pleura covers the lung surface. Each lung is surrounded by the pleura fluid which is engrossed in between two pleura membrane. This pleura fluid serves as a moist surface to prevent friction as well as adhere the lungs tightly together in between the thoracic wall.…

    • 1132 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    The alveoli enable the oxygen in the air we breathe to diffuse into are blood stream and carbon dioxide to be defused out of the body. this is Gaseous exchange. The alveoli consist of a they are rounded structures which gives them a large surface area to perform gaseous exchange, secondly they have a moist lining for dissolving gases, thirdly they have very thin walls. Finally, they also have a very good blood supply for the two to function as they do.…

    • 989 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    When the ventricles fill with blood, they too contract together in ventricular systole. The atria and ventricles contract as units but the right and left sides act as two separate pumps. First, deoxygenated blood enters the right atrium through two large veins called the superior vena cava and the inferior vena cava. The blood is then pumped through the right AV and enters the right ventricle, the ventricle contracts and pumps blood into the pulmonary artery. In the lungs the blood gets oxygenated and returns to the left atrium through the pulmonary veins.…

    • 1098 Words
    • 4 Pages
    Decent Essays