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5 Written questions

5 Matching questions

  1. Platelets, also called thrombocytes are the smallest of the cells in the blood. What is their function?
  2. White blood cells (leukocytes) function is:
  3. The human heart has 4 chambers, name them.
  4. What are veins?
  5. The circulatory system is commonly known as what?
  1. a Function is to return deoxygenated blood to the heart; high amount of smooth muscle in walls.
  2. b right atrium- it fills the right ventricle with blood.
    right ventricle - pumps to lungs
    left atrium - it fills the right ventricle
    left ventricle - pumps blood to systemic circulation.
  3. c The Cardiovascular System.
  4. d Defense against infection. They have a nucleus and live hours to days at a time.
  5. e To prevent blood loss; important in clot formation.

5 Multiple choice questions

  1. Because aspirin, given in small doses, inhibits some of the platelet functions, like clotting formation.
  2. It rests on the diaphragm, wedged between the lungs in the mediastinum of the thorax (mediastinum is the part of the thoracic cavity located between the lungs).
  3. 1) Neutrophils (the most common are phagocytic; 55% - 70% of total white blood count). They seek out bacteria and ingest and kill them. They are near sites of injury2) Eosinophils (2-5% of total blood count). They attack parasites and are responsible for allergic response within the blood.3) Basophils (less than 1% of total wbc count) secrete anti-coagulant and antibodies. 4) Monocytes (5%-8% in total wbc count) are the largest of the wbc and they act as macrophages and remove foreign particles; play a key role in immunity. 5) Lymphocytes role in recognizing self and nonself, they can only recognize certain antigens.
  4. Large vessels; elastic muscles to carry on power of the heart. They are the higher-pressure portion of the circulatory system. (blood away from the heart toward the tissue).
  5. Liquid connective tissue that transports oxygen and nutrients throughout the body.

5 True/False questions

  1. Death and destruction of blood cells last how long?120 days about.


  2. How is the blood supplied to the heart?By the coronary arteries.


  3. Two mechanisms that regulate the circulatory system are?Neural and Endocrine


  4. What is the function of the circulatory system?Its an important communication and transport channel with networks, in the form of blood vessels, linking various tissues.


  5. What are erythrocytes?"Faucet" regulates blood pressure; delivers blood to the capillaries.