343882
Description
Mind Map by Tafae Machimbiz, updated more than 1 year ago
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Created by Tafae Machimbiz
almost 11 years ago
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BLOOD VESSELS N'
BLOOD STRUCTURE
- blood contains 4
substances within it
- ERYTHROCYTES__a.k.a red
blood cells
- contain haemoglobin with
O2__anemia is a result of a lack of
thiz
- larger surface area__to
collect mo O2
- flexible
membrane__inorder for it
to pass thru capillaries
- larger surface area__to
collect mo O2
- contain haemoglobin with
O2__anemia is a result of a lack of
thiz
- PLASMA__55% in blood__carries blood cells,
dissolved waste n' nutrients__also carries
hormones: heat, drugs,vitamins etc
- LEUCOCYTES__a.k.a white blood
cells__they fyt diseases__release
antibodies
- larger size with no shape in order to swallow
bacteria__phagocytes
- larger nucleus in order to sense foreign
substances n' release antibodies__lymphocytes
- larger nucleus in order to sense foreign
substances n' release antibodies__lymphocytes
- larger size with no shape in order to swallow
bacteria__phagocytes
- THROMBOCYTES__a.k.a
platelets__produced in the bone marrow
- their job is blood clottin' when necessary e.g.
when there is a cut in the skin
- very small n' light in order to pass thru the walls to stop
excessive bleeding
- very small n' light in order to pass thru the walls to stop
excessive bleeding
- their job is blood clottin' when necessary e.g.
when there is a cut in the skin
- ERYTHROCYTES__a.k.a red
blood cells
- blood vessels have a job of transporting
blood to where it should go
- ATERIES__carry blood from the
heart__made out of a tissue__thick walls
but small lumen
- endothilium walls are very
stretchy__high blood pressure
- stretchy walls to cope with the
pressue
- endothilium walls are very
stretchy__high blood pressure
- VEINS
- carry blood to the heart__thinner walls with a
very large lumen
- have valves to stop back flow of blood
under gravity
- have valves to stop back flow of blood
under gravity
- carry blood to the heart__thinner walls with a
very large lumen
- CAPILLARIES__very tiny_connect veins
n' ateries__made up of endothiliam cells
- have gaps on the walls to allow diffusion
of material between blood n' cells
- blood pressure is very low in comparison to
aterries__also due to the thinness of their walls
- have gaps on the walls to allow diffusion
of material between blood n' cells
- ATERIES__carry blood from the
heart__made out of a tissue__thick walls
but small lumen
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