Blood
- Created by: Bethhy
- Created on: 15-04-14 15:10
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- Blood
- components
- plasma
- main component of blood
- largely made of water
- contains dissolvable substances.
- fibrinogen
- Erthrocytes
- biconcave disks
- contains haemoglobin
- red pigment
- carries oxygen
- made in bone marrow
- short bones
- 120 day life span
- leuthrocytes
- change shape
- colourless cytoplasm
- defends against infections
- all are nucleus containing
- platelets
- fragments of Megakaryocytes
- found in bone marrow
- fragments of Megakaryocytes
- involved in blood clotting
- plasma
- functions
- Leuthrocytes
- some produce antibodies
- against antitoxins and pathogens
- others engulf and digest
- Phagocytosis
- some produce antibodies
- platelets
- seals blood vessels
- stops major blood loss
- stops pathogens getting in broken skin.
- Plasma
- transports food from storage to use
- glucose and amino acids to small intestine
- maintains body temperature
- buffer to change pH
- transports food from storage to use
- Erthrocytes
- Carry oxygen
- large surface to volume ratio
- allows quick diffusion
- Leuthrocytes
- components
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