Tissue Fluid

Tissue fluid…read more

GLUCOSE
OXYGEN
AMINO ACIDS
FATTY ACIDS
Composition SALTS
Supplies these to tissues and receives CARBOM DIOXIDE
and other waste products from tissues.…read more

ARTERY ARTERIOLE CAPILLARY VEIN
1. Pressure start of capillary bed = greater than outside the capillary
2. Difference in pressure forces fluid out
3. Fluid surrounds cells forming tissue fluid
4. After fluid left capillary, pressure is reduced in capillary bed nearer
to veins
Formation
Hydrostatic pressure created as lumen size decreases,
forces TF out of the plasma…read more

ARTERY ARTERIOLE CAPILLARY VEIN
1. Lower hydrostatic pressure in capillary at venuous end
do to loss of tissue fluid
2. Tissue fluid outside of capillary has greater hydrostatic
pressure than inside capillary
Return of 3. Due to differences in pressure, tissue fluid forced back
tissue fluid into capillary by outside hydrostatic pressure forces
4. Osmotic forces pull water back into capillary due to
proteins in the blood plasma lowered it's water potential.…read more

Excess of TF drained into lymph vessels
Lymph vessels found in ALL CAPPILARY BEDS
Lymph vessels have very thin walls so TF can easily diffuse
into it.
Forms lymph
Not all Lymph vessels take the lymph back towards the heart to be
tissue fluid drain back into the blood near the superior vena cava.
Lymphatic system also absorbs fats from small intestines
returns... It is part of the immune system; lymph nodes = where
white blood cells develop ­ swollen when there's infection;
more WBC produced
No pump in lymphatic system, lymph moved by hydrostatic
pressure of tissue fluid that has left capillaries and muscle
contractions which squeeze lymph vessels.…read more