80127
Descrição
Mapa Mental por Scott Church, atualizado more than 1 year ago
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Criado por Scott Church
mais de 11 anos atrás
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Homeostasis & The Kidney
- The Human Excretory System functions to: Remove waste from the body (e.g
urea) and control/regulate water levels. The system includes the kidney and its
functioning component; the nephron
- Kidney - Filter the waste products in the blood (e.g urea)
- Aorta - Carries blood to kidney from heart
- Vena Cava - Carries blood from kidney to heart
- Renal Artery - Blood from aorta to kidney
- Renal Vein - Blood carried from kidney to vena cava
- Ureter - Carries waste from kidney to bladder
- Bladder - Stores waste products
- Urethra - Waste products from bladder out
- Cortex - Outside of kidney
- Medulla - Where filtering occurs in the nephron
- Pelvis - Ureter meets the medula
- The nephron is
the cortex but
loop of henle
passes through
the medulla and
because the
loop of henle
does the work it
has been put in
the medulla
- Treating kidney failure:
Transplant & Dialysis
- Parts of kidney: Renal Artery, Outer membrane, Nephron (2mill),
Cortex, Medulla organised in pyramids, Pelvis, Ureter & Renal Vein
- Stomata are pores on a
plant, usually found on the
underside of the leaf. They
release water vapour into
the atmosphere - this is
called transpiration. They
also allow gas exchange
to take place
- Stomata can open and close
to regulate transpiration. If the
stomata are closed or covered
by certain substances, and
cannot release water vapour,
the plant cannot take up as
much, or possibly any more
water at the roots. The
difference between the bottom
of the leaf and the top is that
the bottom has more stomata
than the top
- Excretion and Homeostasis
- Excretion - Removal of waste products from cells
- Skin - Excretes sweat, containing water, ions and urea
- Lungs - Excrete carbon dioxide and water
- Liver - Excretes bile, bile pigments, cholesterol and mineral ions
- Gut - Excretes gut mucosal cells, water, bile and faeces
- Kidneys - Excrete urine, containing urea, mineral
ions, water and other foreign chemicals from the blood
- Kidneys - Excrete urine, containing urea, mineral
ions, water and other foreign chemicals from the blood
- Gut - Excretes gut mucosal cells, water, bile and faeces
- Liver - Excretes bile, bile pigments, cholesterol and mineral ions
- Lungs - Excrete carbon dioxide and water
- Skin - Excretes sweat, containing water, ions and urea
- Excretion - Removal of waste products from cells
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