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Blood Vessels and Lymph fluid                      Jorge Melo
Recap- blood lets play taboo                    Groups of two                    One facing the whiteboard               ...
Blood Plasma
PhagocytosisYOU ARE NOT ALLOWED TO MENTION WHITEBLOOD CELLS, LEUKOCYTES ANDLYMPHOCYTES
Biconcave shapeYOU ARE NOT ALLOWEDTO MENTION RED BLOODCELLS
BloodYou are not allowed to mentionRed Blood Cells and WhiteBlood cells
leucocytesYOU ARE NOT ALLOWEDTO MENTION RED WHITEBLOOD CELLS
ErythrocyteYOU ARE NOT ALLOWED TOMENTION RED BLOOD CELLS
Anaemia
clotting
Haemophilia
Leukaemia
HaemoglobinYOU ARE NOT ALLOWEDTO MENTION REDBLOOD CELLS
LymphocytesYOU ARE NOT ALLOWED TOMENTION WHITE BLOODCELLS
Platelets
Aim: Explore the structures and functionsof blood vessels Objectives   List different types of blood vessels   Describe...
Introduction Cardiovascular system The heart The blood vessels Double circulation
Double circulatory system For each circuit- blood passes through the hear twice Blood Heart (   Pressure) Lungs (capil...
Single circulation Chambered heart
 Organs arranged in parallel  rather in series If it was in series    blood would loose     pressure, oxygen and     nu...
Portal vessel Blood vessel which links  2 organs (neither the  heart) Liver and gut linked in  series Advantage: Liver ...
Blood Vessels Intricate networks of hollow tubes that transport blood throughout the entire body. Types of Blood Vessels...
Arteries Arteries are elastic vessels that transport blood away  from the heart. Thick muscle layer – control the flow o...
Arteries
Where do we find them?  Near the heart    Large    Carotids    Subclavian   Far away from the    heart     More smoo...
Arterioles From the arteries Blood enters in arterioles Only endothelium  wrapped round by a few  muscles fibres
Sphincters Circular muscle fibres Prevent blood from flowing into the capillaries Regulation
Capillaries Extremely small Blood vessel located within the tissues of the body, that transports  blood from arteries to...
Capillaries
Structure of Capillaries No muscle No elastic No valves Thin layer of cells only 4- 10 um diameter Blood flow 1 mm/sec
Venules Blood from capillaries drains into the  venules Walls: thin layer of collagen fibres   Tough   Inelastic
Veins A vein is an elastic blood vessel that transports blood  from various regions of the body to the heart. Thin muscl...
Veins
Semi-lunar Valves The blood has enough pressure to force the valves open as it flows towards the heart. Backflow of bloo...
ARTERY                VeinThick muscle layer    Thin muscle layerThick elastic layer   Thin elastic layerNo valves        ...
Recap
Tissue fluid When blood passes through the capillaries Capillaries work as a net So it retains:    RBCs    Platelets ...
Tissue fluid
Lymph Not all of the tissue fluid returns to the blood capillary. About one-tenth of it enters a separate system of capi...
Lymph What is the difference between tissue fluid and lymph? They both consist of plasma minus the large plasma  protein...
Lymph Lymph is found only in the lymph system. Is a milky looking fluid. The tiny lymph capillaries join up to form lym...
Lymph It relies upon pressure from nearby muscles, the action of valves and the negative pressure in the chest when we br...
Lymph The smaller lymph vessels join up to form two large lymph vessels. These empty the lymph into the subclavian veins...
Lymph It contains fats absorbed by the lymph capillaries in the villi of  the small intestine. These lymph capillaries a...
Lymph This is where lymphocytes are produced. They have an important role to play in producingantibodies. Lymphocytes a...
Lymph
Quiz1. What are the different types of blood vessels?2. Which ones come away from the heart?3. Which ones go to the heart?...
Answers1. What are the different types of blood vessels?                       Arteries, veins, capillaries2. Which ones c...
Have a look at this… http://www2.needham.k12.ma.us/eliot/technology/les sons/cir_sys/index.htm
Circulatory system - Blood Vessels and Lymph fluid
Circulatory system - Blood Vessels and Lymph fluid
Circulatory system - Blood Vessels and Lymph fluid
Circulatory system - Blood Vessels and Lymph fluid
Circulatory system - Blood Vessels and Lymph fluid
Circulatory system - Blood Vessels and Lymph fluid
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Circulatory system - Blood Vessels and Lymph fluid

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Objectives

List different types of blood vessels

Describe the different structures of blood vessels

List properties of the lymph and tissue fluid

Circulatory system - Blood Vessels and Lymph fluid

  1. 1. Blood Vessels and Lymph fluid Jorge Melo
  2. 2. Recap- blood lets play taboo Groups of two One facing the whiteboard Other facing the Audience
  3. 3. Blood Plasma
  4. 4. PhagocytosisYOU ARE NOT ALLOWED TO MENTION WHITEBLOOD CELLS, LEUKOCYTES ANDLYMPHOCYTES
  5. 5. Biconcave shapeYOU ARE NOT ALLOWEDTO MENTION RED BLOODCELLS
  6. 6. BloodYou are not allowed to mentionRed Blood Cells and WhiteBlood cells
  7. 7. leucocytesYOU ARE NOT ALLOWEDTO MENTION RED WHITEBLOOD CELLS
  8. 8. ErythrocyteYOU ARE NOT ALLOWED TOMENTION RED BLOOD CELLS
  9. 9. Anaemia
  10. 10. clotting
  11. 11. Haemophilia
  12. 12. Leukaemia
  13. 13. HaemoglobinYOU ARE NOT ALLOWEDTO MENTION REDBLOOD CELLS
  14. 14. LymphocytesYOU ARE NOT ALLOWED TOMENTION WHITE BLOODCELLS
  15. 15. Platelets
  16. 16. Aim: Explore the structures and functionsof blood vessels Objectives  List different types of blood vessels  Describe the different structures of blood vessels  List properties of the lymph and tissue fluid
  17. 17. Introduction Cardiovascular system The heart The blood vessels Double circulation
  18. 18. Double circulatory system For each circuit- blood passes through the hear twice Blood Heart ( Pressure) Lungs (capillaries)( Pressure) Heart ( Pressure) Body
  19. 19. Single circulation Chambered heart
  20. 20.  Organs arranged in parallel rather in series If it was in series  blood would loose pressure, oxygen and nutrients  Any damage, would interrupt the whole circulation
  21. 21. Portal vessel Blood vessel which links 2 organs (neither the heart) Liver and gut linked in series Advantage: Liver acts as a filter to maintain relatively constant composition
  22. 22. Blood Vessels Intricate networks of hollow tubes that transport blood throughout the entire body. Types of Blood Vessels: Arteries Veins Capillaries
  23. 23. Arteries Arteries are elastic vessels that transport blood away from the heart. Thick muscle layer – control the flow of blood No valves 2 types: pulmonary (lungs) and systemic
  24. 24. Arteries
  25. 25. Where do we find them?  Near the heart  Large  Carotids  Subclavian  Far away from the heart  More smooth muscle  Similar structure
  26. 26. Arterioles From the arteries Blood enters in arterioles Only endothelium wrapped round by a few muscles fibres
  27. 27. Sphincters Circular muscle fibres Prevent blood from flowing into the capillaries Regulation
  28. 28. Capillaries Extremely small Blood vessel located within the tissues of the body, that transports blood from arteries to veins Most abundant in tissues and organs that are metabolically active. Muscle tissues and the kidneys have a greater amount of capillary networks than do connective tissues.
  29. 29. Capillaries
  30. 30. Structure of Capillaries No muscle No elastic No valves Thin layer of cells only 4- 10 um diameter Blood flow 1 mm/sec
  31. 31. Venules Blood from capillaries drains into the venules Walls: thin layer of collagen fibres  Tough  Inelastic
  32. 32. Veins A vein is an elastic blood vessel that transports blood from various regions of the body to the heart. Thin muscle layer Valves 4 main types: pulmonary, systemic, superficial, and deep veins.
  33. 33. Veins
  34. 34. Semi-lunar Valves The blood has enough pressure to force the valves open as it flows towards the heart. Backflow of blood causes the valves to close.
  35. 35. ARTERY VeinThick muscle layer Thin muscle layerThick elastic layer Thin elastic layerNo valves Valves Capillary No muscle No elastic No valves Thin layer of cells only
  36. 36. Recap
  37. 37. Tissue fluid When blood passes through the capillaries Capillaries work as a net So it retains:  RBCs  Platelets  Plasma proteins Water liquid which resembles plasma minus its proteins
  38. 38. Tissue fluid
  39. 39. Lymph Not all of the tissue fluid returns to the blood capillary. About one-tenth of it enters a separate system of capillaries called the lymph capillaries. These are part of the lymph system. Lymph capillaries have tiny valves that allow the tissue fluid to enter but will not let it out again. Once inside the lymph system, the tissue fluid is called lymph.
  40. 40. Lymph What is the difference between tissue fluid and lymph? They both consist of plasma minus the large plasma proteins. But it is largely a matter of where they are found. Tissue fluid surrounds the tissue.
  41. 41. Lymph Lymph is found only in the lymph system. Is a milky looking fluid. The tiny lymph capillaries join up to form lymph vessels. These have a structure very similar to veins. They have thin walls and semi-lunar valves. The flow of lymph is very slow.
  42. 42. Lymph It relies upon pressure from nearby muscles, the action of valves and the negative pressure in the chest when we breathe in. Unlike blood, lymph is transported in one direction only. From tissues towards the heart.
  43. 43. Lymph The smaller lymph vessels join up to form two large lymph vessels. These empty the lymph into the subclavian veins, under the collar bone. Here the lymph mixes with the blood before joining the vena cava just before it enters the heart.
  44. 44. Lymph It contains fats absorbed by the lymph capillaries in the villi of the small intestine. These lymph capillaries are called lacteals. The wall of lymph vessels are more permeable than the walls of blood capillaries, so large molecules such as fats can pass through them. At intervals along the length of the lymph vessels are structures called lymph nodes, these have an important part to play in the bodies defence system.
  45. 45. Lymph This is where lymphocytes are produced. They have an important role to play in producingantibodies. Lymphocytes are released from the lymph nodes and find their way into the blood. The lymph nodes often swell up of you have an infection.
  46. 46. Lymph
  47. 47. Quiz1. What are the different types of blood vessels?2. Which ones come away from the heart?3. Which ones go to the heart?4. Which type of vessel can you feel the pulse in?5. What is the name of the vessel that you feel the pulse in in your wrist?
  48. 48. Answers1. What are the different types of blood vessels? Arteries, veins, capillaries2. Which ones come away from the heart? Arteries3. Which ones go to the heart? Veins4. Which type of vessel can you feel the pulse in? Arteries5. What is the name of the vessel that you feel the pulse in in your wrist? Radial (Artery)
  49. 49. Have a look at this… http://www2.needham.k12.ma.us/eliot/technology/les sons/cir_sys/index.htm

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