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Circulation & Transport

The flashcards below were created by user lduran8 on FreezingBlue Flashcards.

  1. Respiratory System
    Moves oxygen into & C02 out of the body
  2. Cardiovascular System
    Transports materials to and from all other systems
  3. Function of Circulatory System in transport of materials (5)
    • Respiratory Gases
    • Nutrients
    • Nitrogenous Wastes
    • Hormones
    • Heat
  4. What animals is the circulatory system required in? (2)
    • Animals larger than a certain size
    • Animals w/ more than minimal 02 demands
  5. Why don't sponges and jellies need a circulatory system?
    • Sponges-no tissues
    • Jellies- thin tissue allow for direct diffusion of 02
  6. What does the circulatory system consist of? (3)
    • Pumping Mechanism (heart)
    • Plumbing (arteries & veins)
    • Surface for diffusion (capillaries)
  7. Closed Circulatory System (2)
    • Blood confined to vessels at all times
    • Materials pass into & out of blood via diffusion
  8. Open Circulatory System (2)
    • Blood not always confined to vessels
    • Blood flows from arteries into spaces between cells and blood cavities between organs
  9. What are the spaces between cells that blood diffuses into?
    Interstitial spaces
  10. Hemolymph
    Blood in open system
  11. Pulmonary Circuit 
    Lungs
  12. Systemic Circuit
    Everything in the body
  13. What allows for continuous pumping in the heat?
    Intercalated discs
  14. 2 Chambers of the heart
    • Atrium 
    • Ventricle
  15. Single Loop 
    Blood pumped from the heart to lungs & out to body
  16. Double Loop in amphibians (2)
    • Not efficient
    • Mixing of newly oxygenated blood with old blood inside the heart
  17. Mammal/ Bird circulatory system (3)
    • Complete separation between atria & ventricles
    • Complete separation between pulmonary & systematic circulations
    • Right side of heart is deoxygenated & left is oxygenated
  18. Artery (3)
    • Carry blood away from the heart
    • Thick walled (lots of elastic tissue & muscles)
    • No valves (high pressure)
  19. Veins (3)
    • Carry blood towards the heart
    • Thin walled (little elastic tissue & muscles)
    • Have valves (no pressure)
  20. Surfaces for diffusion
    Capillaries (barely wider than the blood cells they carry)
  21. Vertebrate Blood Composition
    50% Plasma & 50% Cellular Components
  22. Plasma (2)
    • 90% water
    • Gases, proteins, hormones
  23. Cellular Components (3)
    • Erythrocytes (red blood cells)
    • Leukocytes (white blood cells)
    • Platelets/ Thrombocytes (aid in coagulation)
  24. Erythrocytes in Mammalian Blood (2)
    • Most numerous
    • Carry hemoglobin (protein that carries 02)
  25. Leukocytes (3)
    • 5 distinct types
    • Most produced & stored in bone marrow
    • Important role in body's defense
Author
lduran8
ID
308659
Card Set
Circulation & Transport
Description
Circulatory system in animals
Updated
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