Homeostasis & The Kidney

Scott Church
Mind Map by Scott Church, updated more than 1 year ago
Scott Church
Created by Scott Church almost 7 years ago
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GCSE Triple Biology (The Kidney & Homeostasis) Mind Map on Homeostasis & The Kidney, created by Scott Church on 05/09/2013.

Resource summary

Homeostasis & The Kidney
1 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
2 Kidney - Filter the waste products in the blood (e.g urea)
3 Aorta - Carries blood to kidney from heart
4 Vena Cava - Carries blood from kidney to heart
5 Renal Artery - Blood from aorta to kidney
6 Renal Vein - Blood carried from kidney to vena cava
7 Ureter - Carries waste from kidney to bladder
8 Bladder - Stores waste products
9 Urethra - Waste products from bladder out
10 Cortex - Outside of kidney
11 Medulla - Where filtering occurs in the nephron
12 Pelvis - Ureter meets the medula
13 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
14 Treating kidney failure: Transplant & Dialysis
15 Parts of kidney: Renal Artery, Outer membrane, Nephron (2mill), Cortex, Medulla organised in pyramids, Pelvis, Ureter & Renal Vein
16 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
17 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
18 Excretion and Homeostasis
18.1 Excretion - Removal of waste products from cells
18.1.1 Skin - Excretes sweat, containing water, ions and urea
18.1.1.1 Lungs - Excrete carbon dioxide and water
18.1.1.1.1 Liver - Excretes bile, bile pigments, cholesterol and mineral ions
18.1.1.1.1.1 Gut - Excretes gut mucosal cells, water, bile and faeces
18.1.1.1.1.1.1 Kidneys - Excrete urine, containing urea, mineral ions, water and other foreign chemicals from the blood
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