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• what does blood exsist of

  55% blood plasma:

  -Water

  -fibrinogen

  -dissolved substances (CO²)

  + thermoregulation

  45% blood corpuscles:

  -red blood cells

  -white blood cells

  -blood platelets

  
• what is the function of the fibrinogen


  They coagulate blood by making fibrin threads on site of damage, platelets get stuck in the threads and together they close the wound.

  
• blood plasma


  liquid portion of blood that consist of:

  -water

  -fibrinogen

  -dissolved substances

  - thermoregulation

  
• blood corpuscles


  - Red blood cells

  - White blood cells

  - Blood platelets

  
• red blood cells


  -No nucleus

  -transport O²

  
• White blood cells


  - Nucleus is present

  - Whipes out pathogens

  -> phagocytosis + forming antibodies

  - changing of shape

  
• phagocytosis


  That is what the proces is called when a white blood cell wants to whipe out a pathogen. He starts surrounding the pathogens and take them out.
• blood platelets


  - no nucleus

  - stops wound / bruise from bleeding

  -> they do this together with the fibrinogen
• thermoregulation


  blood plasma makes sure out body stays the same temperature
• arteries


  go from the heart to the organs

  - thick, elastic, muscular wall

  - blood flows onwards along with the rhytm of our heart

  - thick muscle tissue, thin connective tissue
• Veins


  go from the organs to the heart

  -hin wall

  - valves: make sure blood doesn't flow in the wrong direction

  -thin muscle tissue, thick connective tissue
• capillaries


  inside organs, go from the arteries to the veins

  - wall is 1 layer of cells -> so that they can exchange substances with surrounding cells

  - no muscle tissue, no connective tissue
• right atrium /

  
• right ventricle /

  
• left atrium /

  
• left ventricle /

  
• valve flaps /

  
• crescent valves /

  
• aorta /

  
• superior vena cava /

  
• inferior vena cava /

  
• pulmonary arterie /

  
• pulmonary vein /

  
• septum /

  
• capillaries of other organs

  capillaries inside of the other organs

  
• pulmonary capellaries


  the capillaries inside of the lungs
• systemic circulation


  the circulation that transports blood from the heart to the rest of the body
• liver capillaries


  capillaries inside of the liver
• intestinal capillaries


  the capillaries inside of the small and large intestine
• renal capillaries


  capillaries inside of the kidneys
• liver portal vein


  the vein that is the only one that doesn't end in a vena cava but ends in the liver
• liver vein


  the veins that transport the blood from the liver to the heart
• renal artery


  the artery that transports the blood from the heart to the kidneys
• arteries of other organs

  arteries that go from the heart to other organs
• veins of other organs


  veins that transport blood from other organs to the heart
• liver artery


  the artery that transports blood from the heart to the liver
• renal vein


  the vein that transports blood from the kidneys to the heart
• intestinal artery


  the artery that transports blood from the heart to the intestines
• pulmonary circulation


  Circulation of blood between the heart and the lungs
• single circulation


  blood passes through the heart once in each complete circuit (fish)