Excretion

Kidney

site of

also as

Formation of urine

osmoregulator regulates

consists of

consists of ultrafiltration

takes place in

can suffer from

selective reabsorbtion

osmotic potential of blood to normal

determine by

when is a

takes place in

process that filters small molecules from blood

Malphigian corpuscle

proximal and distal convulated tubule has

has

bundles of blood capillaries in Bowman’s capsule

driven by blood pressure acting as the main force

examples wastes, amino acids, glucose and salts

determine by

where

capillaries are very permeable and made of single layered of cells

afferent arteriole wider than efferent arteriole and Bowman’s capsule hydrostatic pressure

except for Protein (large)

numerous blood capillaries surrounding it (peritubular capillaries)

is defined as

resulting in

volume of water in blood

unwanted substances remaining in tubules

reabsorbing useful substances involves

hypthalamus stimulates

active transport and passive reabsorbtion

excess water, amino acids and urea

useful substances to be reabsorbed to maintain constant internal fluid composition and volume

glucose, amino acids salts and water

pituitary gland

pituitary gland followed by

forming ADH not to be secreted so water not reabsorbed returning osmotic potential to normal

urine to be excreted

Kidney failure due to severe infection/accident

dialysis a process where blood is drawn from an artery in patient’s arm allow diffusion of

stimulates

causes

require treatment known as

allow filtration of small particles

Submitted by: Juliza Binte Zulkifli Nur-Muna Binte Mohamed Ali Siti Zubaidah Binte Jum’ani

hypothalamus

examples

examples

to

low

detected by

resulting in reabsorb into

high

consist of flow through

Tubing bathed in a specially controlled fluid

secretion of ADH into blood stream where ADH makes the distal and collecting tubule permeable to water

resulting in

water leaving through the distal tubules into the peritubular capillaries returning osmotic potential to normal