Cardiovascular System Overview
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Questions and Answers

What is the function of capillaries in the cardiovascular system?

  • Allow the diffusion of oxygen and nutrients to body tissues (correct)
  • Bring blood back to the heart
  • Transport deoxygenated blood to the lungs
  • Bring blood away from the heart
  • Which part of the heart has thick, muscular middle layer?

  • Pulmonary circulation
  • Epicardium
  • Endocardium
  • Myocardium (correct)
  • In the cardiovascular system, what is the function of veins?

  • Bring blood away from the heart
  • Transport deoxygenated blood to the lungs
  • Bring blood back to the heart (correct)
  • Allow the diffusion of oxygen and nutrients to body tissues
  • Which circulation is responsible for transporting deoxygenated blood to the lungs and back to the heart?

    <p>Pulmonary circulation</p> Signup and view all the answers

    What is the function of arteries in the cardiovascular system?

    <p>Bring blood away from the heart to other parts of the body</p> Signup and view all the answers

    What causes blood pressure in the cardiovascular system?

    <p>Arteries creating pulsating waves</p> Signup and view all the answers

    What are the rhythmic waves of contractions that move food particles through the digestive tract called?

    <p>Peristalsis</p> Signup and view all the answers

    Which process involves the passing of simple molecules from chemical digestion through cell membranes into the blood or lymph capillaries?

    <p>Absorption</p> Signup and view all the answers

    What is the term for the removal of indigestible wastes through the anus?

    <p>Defecation</p> Signup and view all the answers

    What is the length of the long continuous tube that makes up the digestive tract?

    <p>9 meters</p> Signup and view all the answers

    Which layer of the digestive tract wall is described as the innermost tunic and lines the lumen?

    <p>Mucosa</p> Signup and view all the answers

    In which layer of the digestive tract wall do folds sometimes develop to increase surface area?

    <p>Mucosa</p> Signup and view all the answers

    What is the main function of the digestive system?

    <p>Process food into molecules that can be absorbed by body cells</p> Signup and view all the answers

    Which organ is NOT part of the digestive tract?

    <p>Lungs</p> Signup and view all the answers

    What triggers asthma?

    <p>Inflammation and constriction of airways caused by inhaled allergen or irritant</p> Signup and view all the answers

    Which type of cellular respiration requires oxygen?

    <p>Aerobic cellular respiration</p> Signup and view all the answers

    What happens during absorption in the digestive system?

    <p>Molecules are taken up by body cells</p> Signup and view all the answers

    What are the accessory organs of the digestive system responsible for?

    <p>Secreting fluids into the digestive tract</p> Signup and view all the answers

    What type of epithelial tissue is found in the mouth and anus where thickness for protection against abrasion is needed?

    <p>Stratified squamous tissue</p> Signup and view all the answers

    Which layer of the digestive tract contains blood vessels, lymphatic vessels, nerves, and may have embedded glands?

    <p>Submucosa</p> Signup and view all the answers

    What is the function of the smooth muscle layers in the digestive tract?

    <p>Responsible for movements</p> Signup and view all the answers

    What is the outermost layer of the digestive tract called above the diaphragm?

    <p>Adventitia</p> Signup and view all the answers

    What is the chief goal of the digestive system?

    <p>Break down huge macromolecules</p> Signup and view all the answers

    Where is the myenteric plexus located in relation to the smooth muscle layers?

    <p>Between inner and outer circular layers</p> Signup and view all the answers

    Where does sperm initially stay in the male reproductive system?

    <p>Epididymis</p> Signup and view all the answers

    Which male reproductive organ resembles a comma and lies along the top and posterior portion of the testes?

    <p>Epididymis</p> Signup and view all the answers

    What is the function of the penis during intercourse?

    <p>Contains erectile tissue for engorgement with blood</p> Signup and view all the answers

    Which male reproductive organ provides much of the force needed for ejaculation?

    <p>Prostate Gland</p> Signup and view all the answers

    What do the seminal vesicles contribute to the bulk of semen?

    <p>Mucus, fructose, and enzymes</p> Signup and view all the answers

    What is the role of the vas deferens in the male reproductive system?

    <p>To transport sperm from the epididymis to the ejaculatory ducts</p> Signup and view all the answers

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