Gross Anatomy of the Circulatory System

Cards (27)

  • What are the three types of blood circulatory systems?
    Systemic, pulmonary, specialised circulatory
  • What do circulatory systems transport?
    Oxygen, nutrients, CO, metabolic waste
  • What do arteries do in the blood circulatory system?
    Carry blood away from the heart
  • What is the function of veins?
    Give blood back to the heart
  • Where does gas exchange occur in the circulatory system?
    In the capillaries
  • What is the pressure condition in systemic circulation?
    High pressure on arterial side
  • What type of blood does systemic circulation transport from the heart?
    Oxygen-rich blood to body tissues
  • What happens to oxygen-poor blood in systemic circulation?
    Returns to the right side of the heart
  • How can we calculate heart rate?
    By taking the pulse
  • What is the pressure condition in pulmonary circulation?
    Low pressure system
  • What type of blood does pulmonary circulation transport from the heart?
    Blood low in oxygen to the lungs
  • What do pulmonary arteries carry?
    Blood away from the heart (oxygen-poor)
  • What do pulmonary veins carry?
    Blood towards the heart (oxygen-rich)
  • What are the components of the lymphatic system?
    • Lymph vessels
    • Lymph
    • Lymphatic tissues and organs
  • What is interstitial fluid?
    Fluid in the space between cells
  • What are the functions of the lymphatic system?
    Body defense mechanisms and drainage of fluid
  • How does fluid move from capillaries to interstitial space?
    From the arterial end of the capillary
  • What is plasma in the context of capillary fluid?
    Fluid in the capillary
  • What pushes fluid out of the capillary?
    Capillary blood pressure (CBP)
  • What pulls fluid back into the capillary?
    Blood colloid osmotic pressure (BCOP)
  • What happens to CBP and BCOP at the arterial end?
    CBP > BCOP (filtration occurs)
  • What happens at the venous end of capillaries?
    BCOP > CBP (reabsorption occurs)
  • What percentage of fluid is reabsorbed at the venous end?
    Approx 85%
  • What happens to the remainder of fluid not reabsorbed?
    Picked up by lymphatic capillaries
  • What is lymph?
    Excess fluid entering lymphatic capillaries
  • What happens to lymph in the lymphatic system?
    Returns to the blood system
  • What is the pathway of lymphatic drainage?
    • Lymph capillaries
    • Lymph vessels
    • Lymph trunks
    • Thoracic duct/lymphatic duct